Schneider Electric HART - STB Multiplexer, Applications User Guide
광고
광고
HART
S1B40735 4/2013
HART
STB Multiplexer
Applications Guide
4/2013 www.schneider-electric.com
2
The information provided in this documentation contains general descriptions and/or technical characteristics of the performance of the products contained herein. This documentation is not intended as a substitute for and is not to be used for determining suitability or reliability of these products for specific user applications. It is the duty of any such user or integrator to perform the appropriate and complete risk analysis, evaluation and testing of the products with respect to the relevant specific application or use thereof. Neither Schneider Electric nor any of its affiliates or subsidiaries shall be responsible or liable for misuse of the information contained herein. If you have any suggestions for improvements or amendments or have found errors in this publication, please notify us.
No part of this document may be reproduced in any form or by any means, electronic or mechanical, including photocopying, without express written permission of
Schneider Electric.
All pertinent state, regional, and local safety regulations must be observed when installing and using this product. For reasons of safety and to help ensure compliance with documented system data, only the manufacturer should perform repairs to components.
When devices are used for applications with technical safety requirements, the relevant instructions must be followed.
Failure to use Schneider Electric software or approved software with our hardware products may result in injury, harm, or improper operating results.
Failure to observe this information can result in injury or equipment damage.
© 2013 Schneider Electric. All rights reserved.
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Table of Contents
Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
About the Book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 1 Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Creating Your First Multiplexer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 2 Introducing HART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introducing HART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introducing the STB HART Multiplexer . . . . . . . . . . . . . . . . . . . . . . . . . . .
HART Multiplexer Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HART Multiplexer Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Multiplexer Data Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 3 Planning the HART Multiplexer . . . . . . . . . . . . . . . . . . . .
Island Segments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Extending the Island Bus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Enclosing the HART Multiplexer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The Power Distribution Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Logic, Sensor, and Actuator Power Distribution on the Island Bus . . . . . .
Understanding Multiplexer Island Power Supply and Consumption . . . . .
Selecting Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 4 Building the Multiplexer . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing the DIN Rail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing the HART Enabled Ethernet NIM . . . . . . . . . . . . . . . . . . . . . . . .
Creating the Backplane of the Island Bus . . . . . . . . . . . . . . . . . . . . . . . . .
Terminating the Island Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inserting STB Modules into their Bases . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing Extension Segments to the Island Bus . . . . . . . . . . . . . . . . . . .
Chapter 5 Grounding the HART Multiplexer . . . . . . . . . . . . . . . . . .
Galvanic Isolation Requirements for Power Supplies on the Island Bus. .
Voltage Cut-out Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Creating a Protective Ground Connection. . . . . . . . . . . . . . . . . . . . . . . . .
Creating a Functional Ground Connection . . . . . . . . . . . . . . . . . . . . . . . .
Using EMC Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
63
79
23
33
5
7
9
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4
Chapter 6 Assigning an IP Address to the HART Multiplexer . . . . .
Assigning an IP Address to the HART Multiplexer. . . . . . . . . . . . . . . . . .
Determining the HART Multiplexer Default IP Address . . . . . . . . . . . . . .
Chapter 7 Configuring the HART Multiplexer . . . . . . . . . . . . . . . . . .
Auto-Configuring the HART Multiplexer. . . . . . . . . . . . . . . . . . . . . . . . . .
Customizing the HART Multiplexer Configuration . . . . . . . . . . . . . . . . . .
Configuring STB AHI 8321 Channel Settings . . . . . . . . . . . . . . . . . . . . .
Mapping Data items to the HART Multiplexer Island Data Process Image
Viewing the IO Image for the STB AHI 8321 HART Interface Module. . .
Configuring the STB AHI 8321 Module as Mandatory or Not Present. . .
Data Process Image Items for the STB AHI 8321 HART Interface Module
Using the STB XMP 4440 Optional Removable Memory Card to
Configure the Island. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Applying a Stored Configuration to the HART Multiplexer . . . . . . . . . . . .
Chapter 8 Wiring the Multiplexer . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.1
Providing Power to the HART Multiplexer . . . . . . . . . . . . . . . . . . . . . . . .
Wiring External Power Supplies to the HART Multiplexer Island. . . . . . .
8.2
Wiring the HART Multiplexer to I/O Modules . . . . . . . . . . . . . . . . . . . . . .
Resistance Calculation for Current Loop Wiring . . . . . . . . . . . . . . . . . . .
Setting Analog Output Rise and Fall Times for the STB AHI 8321 Module
STB I/O Wiring Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Quantum I/O Wiring Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Premium I/O Wiring Example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
M340 I/O Wiring Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 9 HART Device Management Software . . . . . . . . . . . . . . . .
9.1
Configuring HART Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using the DTM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
User Interface Configuration for the HART STB Multiplexer DTM. . . . . .
9.2
AMS Device Management Software Example . . . . . . . . . . . . . . . . . . . . .
Eltima Software Serial to Ethernet Connector Setup . . . . . . . . . . . . . . . .
Add the Schneider Electric Multiplexer to the AMS Device List. . . . . . . .
Creating a HART Multiplexer Network . . . . . . . . . . . . . . . . . . . . . . . . . . .
Managing HART Network Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
127
155
Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
93
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Safety Information
§
Important Information
NOTICE
Read these instructions carefully, and look at the equipment to become familiar with the device before trying to install, operate, or maintain it. The following special messages may appear throughout this documentation or on the equipment to warn of potential hazards or to call attention to information that clarifies or simplifies a procedure.
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PLEASE NOTE
Electrical equipment should be installed, operated, serviced, and maintained only by qualified personnel. No responsibility is assumed by Schneider Electric for any consequences arising out of the use of this material.
A qualified person is one who has skills and knowledge related to the construction and operation of electrical equipment and its installation, and has received safety training to recognize and avoid the hazards involved.
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About the Book
At a Glance
Document Scope
This manual describes specific application solutions employing the Highway
Addressable Remote Transducer (HART) multiplexer.
The specific configuration settings contained in this manual are intended to be used for instructional purposes only. The settings required for your specific configuration may differ from the examples presented in this manual.
Validity Note
The solutions described in the manual require the use of the following versions of z z hardware and software: z Advantys configuration software version 5.5 with patch 4 build 6, or
Advantys Configuration software version 7.0 or higher
STB AHI 8321 HART interface module, version 1.00 or higher
STB NIP 2311 network interface module, version 4.00 or higher
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Related Documents
For additional information about the STB AHI 8321 HART interface module, refer to the online help files for the Advantys configuration software, and to the following technical publication:
Title of Documentation
Advantys STB Special Modules Reference Guide
Reference Number
31007730 (English),
31007731 (French),
31007732 (German),
31007733 (Spanish),
31007734 (Italian)
Advantys STB Standard Dual Port Ethernet Modbus TCP/IP
Network Interface Module
EIO0000000051 (English),
EIO0000000052 (French),
EIO0000000053 (German),
EIO0000000054 (Spanish),
EIO0000000055 (Italian)
You can download these technical publications and other technical information from our website at www.schneider-electric.com.
User Comments
We welcome your comments about this document. You can reach us by e-mail at [email protected].
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HART
Getting Started
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Getting Started
1
Creating Your First Multiplexer
Overview
The Schneider Electric HART multiplexer acts as a gateway to HART-enabled intelligent field instruments. This example shows you how to get started and build your first Schneider Electric HART multiplexer.
After you complete this chapter, you will be able to see the status and data from
HART field instruments on the multiplexer web pages.
This example is intended for use on your test bench. For permanent installation, consult the later chapters of this guide.
The HART Multiplexer
The Schneider Electric HART multiplexer solution is modular and expandable solution. A single Schneider Electric HART multiplexer can support up to 32 HART channels. The HART protocol communicates at the rate of 1200 baud.
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Getting Started
This example shows you how to build the following Schneider Electric HART multiplexer. This example presents the minimum configuration.
1 STB NIP 2311 Ethernet network interface module version 4.0 or higher
2 STB PDT 3100 power distribution module
3 STB AHI 8321 4-channel HART interface module
4 STB XMP 1100 terminator plate
Explosive Environments
The STB AHI 8321 multiplexer is ATEX and FM certified for use in hazardous locations where potentially explosive atmospheres may exist. For details see
Explosive Environments in the Advantys STB System Planning and Installation
Guide (890 USE 171).
DANGER
EXPLOSIVE ENVIRONMENT HAZARD
Do not substitute components which may impair suitability for ATEX Ex or FM
Class 1 Division 2 certifications.
Failure to follow these instructions will result in death or serious injury.
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Getting Started
Task 1: Selecting a DIN Rail
The STB modules in your HART multiplexer are designed to be mounted on a standard high-profile din rail. A standard DIN rail is 35 mm (1.38 in) wide.
The standard DIN rail is 15 mm (0.59 in) deep:
Select a DIN rail that is wider than the cumulative widths of modules you will install on it. In this example, select a DIN rail that is at least 152 mm (6 in) long.
NOTE: The HART multiplexer requires 24 Vdc power. If you plan to mount your power supply on the DIN rail, select a DIN rail long enough for both the HART multiplexer modules and the power supply.
Task 2: Installing the HART-Enabled Ethernet Network Interface Module
Every HART multiplexer includes a single HART-enabled Ethernet network interface module (NIM). The NIM is the first (leftmost) module on the DIN rail.
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Getting Started
In this example, use an STB NIP 2311 NIM, product version 4.0 or higher. You can locate the NIM product version (PV), plus the original module firmware version and certification markings, on the face of the NIM as indicated below:
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Install the STB NIP 2311NIM directly on the DIN rail in one piece, as follows:
Step
1
2
Action
Determine the exact location on the DIN rail where you want to position the NIM before you place it on the rail.
NOTE: Reserve sufficient space to the right of the NIM for the other island modules you want to mount on the DIN rail.
Turn the release screw (2) on the NIM so that the mounting clips on the back are in their relaxed state.
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Getting Started
CAUTION
UNINTENDED EQUIPMENT OPERATION
Do not slide the NIM along the DIN rail. Sliding the NIM can crush the functional ground (FE) contacts on the back of the NIM. Crushed FE contacts can prevent the creation of the FE connection.
Failure to follow these instructions can result in injury or equipment damage.
Step
3
Action
Align the mounting clips with the DIN rail and push the NIM straight onto the rail.
The slope of the mounting clips causes the rail to open the clips when you apply light pressure.
4 Push the module pushed on to the rail until the clips snap closed.
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Getting Started
Task 3: Assembling the HART Multiplexer Backplane
Unlike the NIM, the remaining island modules are not attached directly to the DIN rail. Instead, each module resides in a base unit that comes with the module. In this example, you will create the HART multiplexer backplane by interconnecting the following sequence of base units:
1.
add one STB XBA 2200 base unit (for the STB PDT 3100 power distribution module) to the right of the NIM
2.
add one STB XBA 3000 base unit (for the STB AHI 8321 HART interface module) to the right of the PDT base
3.
add an STB SMP 1100 termination plate to the right of the PDT base, to terminate the HART multiplexer backplane
Proceeding in a left to right direction from the NIM, follow these steps to create your
HART multiplexer backplane:
Step Action
1 Select the STB XBA 2200 base unit that came with your PDM to place directly to the right of the NIM.
2 Using a small screwdriver with a flat blade no wider than 2.5 mm (0.99 in), move the
DIN rail latch on the base unit to its full open position.
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Getting Started
Step Action
3 Align the contacts on the base with the contact channels on the NIM and push the base toward the DIN rail until the interlocking channels meet. Using the interlocking channels as guides, slide the base toward the DIN rail (push from the center of the base). When the base meets the DIN rail, hold the base unit firmly against the DIN rail and push the DIN rail latch into the locked position.
5
6
7
4 Select the STB XBA 3000 base unit for the STB AHI 8321 HART interface module.
Insert this unit directly to the right of the previous base unit; then repeat steps
2 and 3.
Select the STB XBE 1100 termination plate
Align the interlocking channels at the top and bottom left of the termination plate with the channels on the right side of the last module base.
Using the interlocking channels as guides, slide the plate toward the DIN rail until it snaps onto the rail.
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NOTE: The illustration, above, displays several base units. The backplane you will construct in this example includes only 2 base units.
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Getting Started
Task 4: Providing Power to the HART Multiplexer
The next task is to bring 24 Vdc power to the HART multiplexer. You need to supply z z power to both:
STB NIP 2311 NIM, which provides logic power to the HART multiplexer modules
STB PDT 3100 power distribution module, which provides both sensor and actuator power to the island
The following graphic shows you how to provide power supply wiring to the
STB NIP 2311 NIM and an STB PDT 3100 standard PDM:
16
1 +24 Vdc sensor bus power
2 sensor bus return
3 +24 Vdc actuator bus power
4 actuator bus return
5 +24 Vdc island logic power supply
6 island logic power return
7 External 24 Vdc power supply
8 Wurth 74271633 ferrite bead
NOTE: To maintain CE compliance, use a Wurth 74271633 ferrite bead with NIM,
PDM, BOS, and CPS power supplies. Pass the twisted pair wiring through the ferrite bead twice.
Schneider Electric recommends the Phaseo ABL8 RP 24100 power supply
for supplying logic, actuator and sensor power.
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Getting Started
Task 5: Wiring the Current Loops
Each STB AHI 8321 HART interface module provides 4 HART channels. Each channel can connect to a single 4-20 mA current loop and communicate with a single HART field instrument. In this example, the HART multiplexer is connected to a single HART field instrument on channel 1.
The following graphic shows you how to connect 4-20 mA current loop wiring channel 1 of the STB AHI 8321 HART interface module:
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1 220
Ω
resistor
2 Channel 1 current loop (+) wiring to HART field instrument
3 Channel 1 current loop (-) return from HART field instrument
4 Functional ground (FE)
5 HART field instrument
6 24 Vdc current loop power supply
As the preceding graphic indicates, use pins 2 and 4 to connect channel 1 of the
STB AHI 8321 HART interface module to a HART field instrument.
z z z z
When connecting the island modules to current loop wiring: use wire sizes in the range 0.20...0.82 mm
2
(24...18 AWG) strip at least 9 mm from the wire’s jacket for the connection to STB AHI 8321 module use shielded twisted-pair cable tie the twisted-pair cable shield to an external clamp that is tied to ground
NOTE: Refer to the topic Wiring the HART Multiplexer to I/O Modules
for examples of wiring the HART multiplexer to I/O on STB,
Quantum, Premium, and M340 platforms.
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Getting Started
Task 6: Assigning an IP Address
In this example, you will set the IP address of the HART multiplexer to its default IP address. To do this, use the bottom rotary switch (the ONES switch) on the front of the STB NIP 2311 NIM.
18
Follow these steps to assign your HART multiplexer island its default IP address:
Step
1
2
3
Action
Apply power to the HART multiplexer.
Turn the bottom (ONES) switch on the STB NIP 2311 NIM so that it points to one of the CLEAR IP positions. This clears any previously assigned IP address.
NOTE: The position of the top (TENS) switch does not matter.
Turn the bottom (ONES) switch on the STB NIP 2311 NIM so that it points to one of the STORED positions. This NIM applies its default IP address.
NOTE: The position of the top (TENS) switch does not matter.
The default IP address is derived from the last 2 pair of two-digit numbers in the MAC
ID of your STB NIP 2311 NIM. The MAC ID of your STB NIP 2311 NIM is printed on the front of the NIM above the two Ethernet connector ports.
z z
The default IP address observes the format 10.10.
x .
y , where:
10.10. are constants x .
y . are the decimal values of the last 2 pair of two-digit numbers in the MAC ID.
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Getting Started
The following example shows you how to convert the two x .
y . pair of two-digit numbers from hexadecimal to decimal format and identify the HART multiplexer’s default IP address:
Step Action
1 Using a sample MAC ID of 00-00-54-10-25-16, ignore the first four pair (00-00-54-10).
NOTE: You need to use the MAC ID that appears on your STB NIP 2311 NIM.
2
3
Convert the last two pair ( 25 and 16 ) from hexadecimal to decimal format.
25: (2 x 16) + 5 = 37
16: (1 x 16) + 6 = 22
Observe the specified format (10.10.
x .
y .) to assemble the derived default IP address.
The default IP address is:
10.10.37.22
Task 7: Auto-Configuring the HART Multiplexer
The auto-configuration process assigns default settings to the modules that comprise your HART multiplexer island—except IP address, which was assigned in the previous task. Using auto-configuration, no manual configuration of island modules needs to be performed. To perform auto-configuration, press the RST button on the STB NIP 2311 NIM.
CAUTION
UNINTENDED EQUIPMENT OPERATION
Do not press the RST button–or force auto-configuration–for a HART multiplexer island that is operating using an application that was custom configured with
Advantys configuration software.
Failure to follow these instructions can result in injury or equipment damage.
The RST button is located immediately above the CFG port on the NIM, behind the
NIM hinged cover:
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Getting Started
To perform auto-configuration, follow these steps:
Step Action
1 Confirm that power is applied to the HART multiplexer.
2 Using a small screwdriver with a flat blade no wider than 2.5 mm (0.99 in), press the
RST button and hold it down for at least 2 seconds.
Do not use: z z a sharp object that can damage the RST button, or a soft item like a pencil that can break off and jam the RST button
Task 8: Confirming the HART Multiplexer is Operating Normally
To confirm that your multiplexer is operating properly, check the RDY and ERR
LEDs on the front of the STB AHI 8321 HART interface module: z z
When your HART multiplexer is operating normally: the RDY LED is solid green the ERR LED is off
Task 9: Monitoring HART Multiplexer Operations z z
After confirming that the HART multiplexer is operating normally, you can open the web pages for the STB NIP 2311 NIM where you can: z monitor operations diagnose the HART multiplexer edit the HART multiplexer configuration—for example, you can assign the multiplexer a different IP address
NOTE: When commissioning a HART multiplexer for operation in a network,
Schneider Electric recommends that you not use the default IP address. Instead, give each HART multiplexer its own unique IP address, as assigned by your network administrator.
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Getting Started
To access the web pages, follow these steps:
Step Action
1 Connect your PC via Ethernet cable to one of the Ethernet ports of the
STB NIP 2311 NIM.
2
3
Confirm that your PC has an alternate IP address on the same network as the HART multiplexer. Recall that the default IP address of the multiplexer is in the format
10.10.x.y. You will probably need to add an alternate network IP address to your PC using the same format. Verify that the IP address you add is not the same as the default IP address for the HART multiplexer.
Open an internet browser on your PC and type in the default IP address of the HART multiplexer, then press Enter .
4 In the Security dialog, enter the appropriate username and password.
NOTE: z z the User name the default
is the constant value
Password is also USER
USER
, but can be changed
The Password page opens.
The Home page of the STB NIP 2311 NIM:
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You can access HART-specific web information by clicking on the Diagnostics menu item (above), then under HART selecting the following page: z Instrument Overview instruments
: to monitor data relating to selected HART field
21
Getting Started
The following is an example of the HART Instrument Overview web page:
For details of the contents of this page, refer to the Embedded Web Pages section of the Advantys STB Standard Dual Port Ethernet Modbus TCP/IP Network
Interface Module Applications Guide .
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HART
Introducing HART
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Introducing HART
2
Overview
This chapter introduces the Highway Addressable Remote Transducer (HART) protocol, and describes the Schneider Electric HART multiplexer.
What Is in This Chapter?
This chapter contains the following topics:
Topic
Introducing HART
Introducing the STB HART Multiplexer
HART Multiplexer Features
HART Multiplexer Functions
Multiplexer Data Flow
Page
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Introducing HART
Introducing HART
The HART Protocol
The Highway Addressable Remote Transducer (HART) protocol provides digital communication to microprocessor-based analog process control instruments. z z
HART uses the Bell 202 frequency-shift-keying (FSK) standard to superimpose a digital signal on top of the 4-20 mA current loop analog signal: the analog signal communicates the primary measured process variable value the digital signal communicates additional instrument information including instrument status, additional process variables, configuration data, and diagnostics
The digital signal shifts between a frequency of 1200 Hz (representing a binary 1) and a frequency of 2200 Hz (representing a binary 0):
24
These digital signal frequencies are higher than the analog signaling frequency range of 0...10 Hz. The digital signal is typically isolated using a passive high-pass filter with a cut-off frequency in the range of 400 Hz to 800 Hz. The analog signal is likewise isolated using a passive low-pass filter.
The separation in frequency between HART and analog signaling allows both signals to coexist on the same current loop. Because the HART digital signal is z z phase continuous: it does not interfere with the 4-20 mA signal, and allows the analog process to continue operating during HART digital communication
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Introducing HART
Half-duplex Communication Protocol
HART communication is half-duplex in design, which means that a HART-compliant instrument does not simultaneously transmit and receive.
Master - Slave Protocol
HART is a master-slave protocol. A HART-slave responds only when commanded by a HART master. Examples of HART-compliant instruments include: z z z
HART masters: asset management software (AMS) running on a PC a HART interface module—for example, the STB AHI 8321 module—when it is communicating with a HART process control instrument z a hand-held device temporarily attached to the network z HART slaves: z a HART process control instrument
Defining HART Instruments
A Device Description Language (DDL) file—provided by the device manufacturer— can define a HART instrument. The DDL serves as a universal software interface for new and existing network instruments.
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Introducing HART
Introducing the STB HART Multiplexer
Multiplexer Components
The Schneider Electric STB HART multiplexer is a special-purpose STB island that includes some combination of the following modules: z z z
Required modules: z 1 HART-enabled STB Ethernet network interface module, for example the
STB NIP 2311 version 4.0 or higher
1 STB PDT 310x power distribution module a minimum of 1, up to a maximum of 8, STB AHI 8321 HART interface modules z z z z z
Optional modules:
Analog input modules
Analog output modules
STB CPS 2111 auxiliary power supply modules, as needed z
STB XBE 1300 beginning of segment (BOS) modules
STB XBE 1100 end of segment (EOS) modules
NOTE: z z
The HART multiplexer is a special kind of STB island. Only the modules described above relate to the use of the STB island as a HART multiplexer.
Although you can add other types of modules to a HART multiplexer, STB island designs that include other modules are beyond the scope of this document.
The HART multiplexer operates at the default backplane speed of 800 kbaud.
However, if you add an STB XBE 2100 CANopen extension module to the island, you need to re-configure the backplane speed to 500 kbaud, thereby slowing the performance of the HART multiplexer. Refer to the help topics for the
STB XBE 2100 CANopen extension module for additional information.
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The following is an example of an HART multiplexer island.
Introducing HART
1 STB NIP 2311 Ethernet network interface module, version 4.0 or higher
2 STB PDT 3100 power distribution module
3 2 STB ACO 0220 analog output module (optional)
4 STB AHI 8321 HART interface module
5 STB CPS 2111 auxiliary power supply
6 STB ACI 8320 analog input module (optional)
7 STB XMP 1100 terminator plate
Maximum Multiplexer Size z z
A single Schneider Electric HART multiplexer can support a maximum of 32 HART instruments—one instrument per channel—when you use: the maximum of eight (8) STB AHI 8321 HART interface modules per island the maximum of four (4) channels for each HART interface module
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Introducing HART
HART Multiplexer Features
Multiplexer Features z z z
The STB HART multiplexer presents the following features: z Auto-configurable default operating parameter settings, which enable the z commissioning of the multiplexer without custom configuration
A minimum of 4 (up to a maximum of 32) 4-20 mA current loop connections, each connection linking a channel on an input or output module to an analog HART instrument z z
Passive filters on each channel that attenuate HART communication signals, permitting pass-through of the analog signal to analog I/O
Two Ethernet ports (on the NIM) that let you place the multiplexer into service in a daisy chain topology, or in a daisy chain loop with RSTP enabled z z
Capacity to receive IP address settings from a DHCP or BootP server
Embedded web page diagnostics
Custom configurable operating parameter settings—via Advantys configuration software
An Ethernet interface to a HART master, for example, asset management software resident on a PC
A fieldbus interface over Ethernet, such as Modbus TCP, which lets a PLC connect to a HART instrument and access instrument process variables and status
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Introducing HART
HART Multiplexer Functions
The Role of a Multiplexer
The STB HART multiplexer facilitates the transmission of HART field instrument data as follows: z the multiplexer provides one-to-many communications between: z a HART master device, for example, asset management software resident on z a PC, and multiple HART slave devices (for example, HART field instruments) z the multiplexer provides HART instrument data to a secondary fieldbus—such as
Modbus TCP—where it is made available to the fieldbus master, for example a
PLC.
Multiplexer Component Functions
The HART multiplexer component modules perform the following functions: z The STB AHI 8321 HART interface module is a passive device that can pass through the analog transmission between an analog field instrument and an analog I/O module. A single HART interface module can be placed into up to four z z
4-20 mA current loops (or channels)—one instrument per channel
The STB AHI 8321 HART interface module receives a combined analog and digital signal from each connected HART instrument.
The STB AHI 8321 HART interface module filters out the digital HART signal and, z if connected to an analog I/O module, passes the analog portion of the signal to the I/O module.
The STB AHI 8321 HART interface module uses the digital signal to cyclically poll the HART instrument for HART data. The HART data describes the status of z z each channel and the connected HART instrument.
Each STB AHI 8321 HART interface module forwards HART data—contained in digital signals received from a HART instrument—to a HART enabled Ethernet network interface module, for example, the STB NIP 2311.
The HART enabled Ethernet NIM stores the HART data received from each
HART interface module located in the multiplexer island. The network interface module makes this data available as follows: z HART data is available to asset management software (AMS) running on a PC z connected to the NIM via Ethernet.
Some of the HART data is stored in registers and becomes part of the island data process image. You can access this data via the PLC, and in the network interface module web pages.
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Introducing HART z The HART enabled Ethernet NIM also processes asynchronous commands it receives from HART master devices. These commands instruct the HART instrument to read, write, or reset data values, including instrument configuration and diagnostic data. The network interface module forwards the command to the target HART instrument and returns the response to the master.
NOTE: HART master devices include: z z
Asset management software (AMS) running on a connected PC. AMS is referred to as a primary HART master, that can send both read and write commands.
Hand-held devices that are temporarily attached to the control loop on the instrument side of the HART multiplexer. Referred to as a secondary HART master, a hand-held device can also send both read and write commands.
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Introducing HART
Multiplexer Data Flow
The Path from HART Field Instrument to Analog I/O
The HART multiplexer is a passive, pass-through device placed between analog
HART field instruments and analog I/O modules.
The physical location of the I/O does not matter. The I/O can be an STB I/O module that resides in the STB HART multiplexer island. Or it can be a module that resides in a Quantum, Premium, M340, or third-party platform rack.
NOTE: In the following data flow diagram, the Ethernet transmission is performed via Modbus TCP. The PC with asset management software is equipped with serialto-Ethernet connector software.
The following figure outlines the flow of data for non-HART tolerant I/O:
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Introducing HART
I/O Placement
For both HART tolerant I/O and non-HART tolerant I/O, the physical location of the
I/O can vary. The I/O can be an STB analog I/O module that resides in the STB
HART multiplexer island. Or it can be an analog I/O module that resides in a separate rack. Typical I/O placement locations include the following:
Placement of I/O modules Platforms
The STB HART multiplexer island STB
A separate I/O drop z z z z z
STB
M340
Premium
Quantum
Third party platforms
Use this design for...
New STB networks
Existing networks
You can create a topology that combines both designs and places analog I/O modules both in the multiplexer island and in a separate I/O drop.
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HART
Planning the HART Multiplexer
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Planning the HART Multiplexer
3
Introducing the STB HART Multiplexer
The HART multiplexer is a specific-purpose STB island. An STB HART multiplexer island is a modular distributed I/O system. This chapter describes how to plan the installation of an STB HART multiplexer island.
What Is in This Chapter?
This chapter contains the following topics:
Topic
Island Segments
Extending the Island Bus
Enclosing the HART Multiplexer
The Power Distribution Modules
Logic, Sensor, and Actuator Power Distribution on the Island Bus
Understanding Multiplexer Island Power Supply and Consumption
Selecting Power Supplies
Page
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Island Segments
The Primary Segment
Every HART multiplexer island begins with a group of interconnected devices called the primary segment . The primary segment consists of the island NIM and a set of interconnected module bases attached to a DIN rail. The PDMs, auxiliary power supplies, I/O, and HART interface modules reside in these bases on the DIN rail.
The NIM is the first (leftmost) module in the primary segment.
Depending on your needs, you can expand the island to include additional segments of STB modules, called extension segments .
The DIN Rail
The NIM and the module bases snap onto a 35 mm (1.38 in) wide, conductive metal,
DIN rail:
The Bases
34
The bases provide the physical connections between modules on the island bus.
These connections enable communication between the NIM and other island modules. A set of contacts on the side of each base transmit: z z z z z logic power from the NIM, from a beginning of segment BOS module, or from an auxiliary power supply sensor power (for inputs) from the PDM actuator power (for outputs) from the PDM] the auto-addressing signal island bus communications between the NIM and other island modules, including
I/O and HART interface modules
There are seven types of bases that can be used in a segment. For a specific module, use only the base required by that module.
NOTE: When you buy a module, it is packaged as a part of a kit that includes the base for that module.
When constructing the island bus, install the bases in the same left-to-right sequence as the modules they will support.
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Bases come in several sizes
. For example, the STB AHI 8321 HART interface module uses a size 3 base. The following graphic depicts typical base components, in this case an STB XBA 1000 size 1 base:
1 user-customizable label tab
2 six island bus contacts
3 DIN rail lock/release latch
4 DIN rail contact
5 five field power distribution contacts
As you assemble the island bus, insert the correct base in each specific island location.
The Island Bus
The module bases that you interconnect on the DIN rail form an island bus structure.
The island bus houses the modules and supports the communications buses across the island.
The NIM, unlike the PDMs and I/O modules, attaches directly to the DIN rail.
When an STB system consists of a single primary segment, terminate the island by placing an STB XMP 1100 terminator plate (which is included in the NIM packaging) in the right-most island position. If a second segment is added, replace the terminator plate with an STB XBE 1100 end of segment (EOS) extension module.
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Planning the HART Multiplexer
The structure of a single-segment island bus:
1 NIM
2 module bases
3 termination plate
4 DIN rail
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An Example of an STB Island
The following illustration presents a multiplexer island bus with standard STB modules.
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1 The NIM in the first location of the segment. The NIM provides 5 Vdc logic power to the I/O and HART interface modules located between the NIM and the STB CPS 2111 auxiliary power supply.
2 Two 24 Vdc STB PDT 3100 power distribution modules. One is installed directly to the right of the NIM; the other is installed to the right of an STB CPS 2111 auxiliary power supply. The NIM distributes DC power over the sensor and actuator buses to the I/O directly to its right. The auxiliary power supply supplies DC power to the single input module to its right.
3 Two STB ACO 0220 2-channel output modules, which receive DC field power from the island actuator bus. The 4-20 mA current loops from these modules pass through the adjacent STB AHI 8321 HART interface module. Each current loop is connected to a
HART field instrument.
4 Two 4-channel STB AHI 8321 HART interface modules. The first (leftmost) HART interface module is connected via pass-through wiring to current loops (or channels) on the two 2channel output modules. The second (rightmost) HART interface module is connected to current loops (or channels) on the single 4-channel input module.
5 An STB CPS 2111 auxiliary power module, which provides 5 Vdc logic power to the I/O and HART interface modules located to its right.
6 An STB ACI 8320 4-channel input module, which receives DC field power from an external
24 Vdc power supply. Each current loop is connected to a single HART field instrument.
The four 4-20 mA current loop signals from this module connect to the STB AHI 8321
HART interface module on the same even numbered pins used by the HART field instrument(s).
7 An STB XMP 1100 terminator plate
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Network Interface Module Functions
The first module on the HART multiplexer primary segment is a HART-enabled
Ethernet NIM, for example the STB NIP 2311. The NIM performs several key functions: z z z z z
It is the master of the island bus, supporting the I/O and HART interface modules by acting as their communications interface across the bus.
It is the gateway between the island and the fieldbus on which the island operates. It manages the data exchange between the island modules (including both I/O and HART interface modules) and the fieldbus master.
It is the gateway between HART asset management software (resident on a dedicated PC connected via Ethernet) and both the island HART interface modules and the HART field devices.
It provides an interface to the Advantys configuration software, which you can use to customize the island configuration.
It is the primary power source for logic power on the island bus, delivering 5-Vdc logic power to modules in the primary segment.
Power Distribution Modules
The second module on the primary segment is a PDM
. If the STB island is intended to perform only as a HART multiplexer, it requires only 24 Vdc field power for the modules in a segment.
NOTE: If digital I/O is required for the island, refer to the Advantys STB System
Planning and Installation Guide for information on how to supply 24-Vdc power to digital I/O.
I/O Modules
An STB HART multiplexer island can include resident analog 24 Vdc input modules and output modules.
I/O Module Logic Power
Logic power is the power that the STB I/O modules require to run their internal processing and light their LEDs.
The NIM converts the incoming 24 Vdc to 5 Vdc. The NIM then distributes the 5 Vdc as logic power for the primary segment
. A similar power supply built into the beginning of segment (BOS) modules provides 5 Vdc for the I/O modules in any extension segments.
Each power supply produces 1.2 A. If the sum of the logic power current consumed by the I/O modules in a segment exceeds that value, you can insert an auxiliary power supply (for example, the STB CPS 2111) to provide an additional 1.2A of power to the modules located to its right. Therefore, the total current draw
determines the number of power supplies required by a segment.
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The Last Device on the Primary Segment
If the STB island consists of only a single (primary) segment, terminate the island bus by placing an STB XMP 1100 terminator plate at the end of the segment.
Extending the Island Bus
If you elect to extend the island bus
to another segment, terminate the primary segment with an STB XBE 1100 EOS bus extension module.
The EOS module has an IEEE 1394-style output connector for a bus extension cable. The extension cable carries the island communications bus and autoaddressing line to the extension segment or to the preferred module.
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Extending the Island Bus
Why Extend the Island Bus?
There are two reasons for adding extension segments to the island bus: z to place island modules near to the actuators, sensors, and other end devices z with which the island modules communicate the physical length of the island exceeds the size of the cabinet
An example of a primary island segment with an extension segment:
1 Primary island segment
2 Extension segment
3 Network interface module (NIM)
4 Power distribution module (PDM)
5 STB XBE 1100 EOS module
6 STB XBE 1300 BOS module
7 STB XCA 100x extension cable
8 Island bus termination plate
Maximum Length Considerations z z
The maximum electrical length of an island bus is 15 m (49.2 ft) end-to-end. The maximum length computation includes:
The width of every STB module in every segment
Every extension cable connecting island segments to: z z other island segments preferred modules
The maximum island bus length does not include the space required for supporting devices, such as external 24-Vdc power supplies. Also, maximum bus length does not include space required for the wiring between these devices and the island.
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Maximum Number of Extension Segments
An island bus can support up to six extension segments of STB modules in addition to the primary segment. Extension segments can be installed on the same, or on separate DIN rails.
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Planning the HART Multiplexer
Enclosing the HART Multiplexer
Open System Requirement
STB modules meet CE mark requirements for open equipment. Schneider Electric recommends that you install the multiplexer in an enclosure that meets NEMA 250 type 1 requirements and IP 20 requirements conforming to IEC 529. Use of an enclosure is recommended to help reduce the likelihood of: z z unauthorized access personal injury resulting from access to live parts
Consider the specific environmental conditions under which the modules operate when planning the enclosure.
Size of the Enclosure
Verify that the size of the enclosure is large enough to house the modules included in the island. To fit more easily into the enclosure, you may want to divide the HART multiplexer island into multiple island segments, then arrange the segments horizontally.
A single HART multiplexer island supports up to 32 analog I/O channels, and z z includes: one NIM up to 32 analog modules, including analog I/O and HART interface modules z PDMs, auxiliary power supplies, and EOS/BOS modules as needed
Module Dimensions
STB modules come in three widths, and present the following dimensions:
Module type
1
2
2-PDM
3
Width of module Height of module in base
13.9 mm (.55 in.)
Depth of module in base with field connectors
128.25 mm (5.05 in.) 75.5 mm (2.97 in.)
18.4 mm (.73 in.)
18.4 mm (.73 in.)
128.25 mm (5.05 in.)
137.90 mm (5.45 in)
75.5 mm (2.97 in.)
79.5 mm (3.13 in.)
28.1 mm (1.11 in.) 128.25 mm (5.05 in.) 70.1 mm (2.76 in)
In addition to the module depth and height dimensions, above, consider the dimensions of external power supplies or other equipment—not described above— that you may attach to your island.
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STB Modules Size & Base Type
Each STB module comes packaged with the base that is appropriate for that module. Use the base unit that comes with your module. If you need to replace a base unit for any reason, refer to the following table:
Model Type Base
Analog Input Modules
STB ACI 0320 2
STB ACI 8320 2
STB XBA 2000
STB XBA 2000
Model
Analog Output Modules
STB ACO 0120
STB ACO 0220
Type
2
2
Base
STB XBA 2000
STB XBA 2000
Power Distribution Modules
STB PDT 3100 2 STB XBA 2200
Special Purpose Modules
STB AHI 8321 3 STB XBA 3000
STB PDT 3105 2
STB CPS 2111 2
STB XBA 2200
STB XBA 2200
STB XBE 1100
STB XBE 1300
2
2
STB XBA 2400
STB XBA 2300
Spacing Requirements
Maintain adequate clearance between the modules installed in the enclosure and surrounding fixed objects such as wire ducts and inside surfaces. The following two illustrations depict the spacing requirements within an enclosure
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Planning the HART Multiplexer
Mounting
NOTE: The preceding graphic is not drawn to scale.
Mount the island on one or more 35 mm (1.38 in) wide DIN carrier rails.
z z z
Install the metal DIN rail by: attaching it to a flat metal mounting surface mounting it on an EIA rack mounting it in a NEMA cabinet enclosure
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The standard DIN rail is 35 mm x 15 mm (1.38 in x 0.59 in) deep.
Use M5 threaded mounting hardware to affix the DIN rail to the mounting surface.
Allow a maximum spacing of 150 mm (5.91 in) between each mounting hardware.
Wiring
Install wiring so that it does not obstruct the 100 mm (3.94 in) of free air space above and below the island segment. Tie down the wiring to help guard against undue load or strain on the STB modules. Use a service loop to dress the leads from a harness or cable channel. This practice helps reduce strain on the module.
Thermal Considerations
For proper heat dissipation, allow a minimum clearance of 100 mm (3.94 in) above and below each island segment. Allow the unobstructed flow of air to the vent openings on the top and bottom of the modules.
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Planning the HART Multiplexer
The following list presents some worst-case values for estimating the wattage dissipation when you plan the cooling for your system and cabinet enclosure:
Module Type inputs
Base Type type 1 type 2 type 3 type 1 outputs type 2 type 3
HART interface module type 3
EOS
BOS type 2 type 2 auxiliary power supply type 2
DC PDM
NIM
1.0 W
2.5 W
2.5 W type 2 - PDM 1.5 W
3.5 W
Worst-case Wattage Value
1.5 W
2.75 W
3.5 W
1.0 W
2.25 W
3.5 W
3.5 W
These values assume elevated bus voltage, elevated field-side voltage and maximum load currents. Typical wattage values are often lower.
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The Power Distribution Modules
Functions
The power distribution module (PDM) supplies field power to the input and output modules resident on the island. Standard PDM modules can distribute sensor power and actuator power via the same or separate power lines across the island bus.
The PDM includes a user-replaceable fuse that helps protect both the island input and output modules, and the wiring. It also provides a protective ground (PE) connection for the island.
Positioning
The HART multiplexer, like other STB islands, requires the placement of a PDM immediately to the right of the NIM, BOS or auxiliary power supply. Depending on the number of input and output modules resident on the segment, additional PDMs can be required. The placement of a PDM to the right of a module group terminates the sensor and actuator buses for the preceding (leftward) module group.
Selecting a PDM z z
If you are building an STB island to serve exclusively as a HART multiplexer, you will need to include only 24 Vdc analog I/O modules. There are two PDMs that can supply 24 Vdc power: the STB PDT 3100 standard module the STB PDT 3105 basic module
Standard versus Basic PDMs z z
When you use a standard PDM, the PDM separately provides power to: the island sensor bus, for the input modules in its group the actuator bus, for the output modules in its group
When you use a basic PDM, the PDM simultaneously provides power to both the sensor bus and the actuator bus.
The standard PDM can also handle more current than a basic PDM.
Standard PDM Power Distribution
Place a PDM immediately to the right of the NIM (or BOS or auxiliary power supply) on the island. The modules in the group follow in series to the right of the PDM.
NOTE: The illustrations presented below are simplified drawings that focus on a single island feature. They may not display every necessary component.
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Planning the HART Multiplexer
The following simplified illustration shows a STB PDT 3100 PDM supporting a cluster of analog 24 Vdc I/O modules:
1 24 Vdc sensor power signal to the PDM
2 24 Vdc actuator power signal to the PDM
Sensor power (to the input modules) and actuator power (to the output modules) are brought to the island (from an external 24 Vdc power supply) via separate two-pin connectors on the PDM.
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In the following simplified illustration, an STB CPS 2111 auxiliary power supply is placed directly to the right of the last I/O module in the first module group, to provide additional logic power
to the island. A second PDM is then required to provide power for new sensor and actuator buses for the 24 Vdc modules to the right of the second PDM:
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1 24 Vdc sensor power signal to the PDM (first module group)
2 24 Vdc actuator power signal to the PDM (first module group)
3 24 Vdc sensor power signal to the PDM (second module group)
4 24 Vdc actuator power signal to the PDM (second module group) z z
Each standard PDM contains a pair of time-lag fuses: a 10 A fuse for the actuator bus a 5 A fuse for the sensor bus
These fuses are user-replaceable.
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Planning the HART Multiplexer
Basic PDM Power Distribution
If your island uses an STB PDT 3105 basic PDM, power is sent from a single power source (in the PDM) to the sensor bus and the actuator bus. The sensor and actuator busses join together in the PDM. In the following illustration, two basic
STB PDT 3105 PDMs are used to provide actuator power and sensor power to two separate groups of I/O:
50
1 24 Vdc actuator and sensor power to the first (leftmost) module group
2 24 Vdc actuator and sensor power to the second (rightmost) module group
Each basic PDM contains one 5 A time-lag fuse that is user-replaceable.
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PE Grounding
Planning the HART Multiplexer
A captive screw terminal on the bottom of the PDM base connects to each I/O base, establishing an island PE bus. The screw terminal on the PDM base meets IEC-
1131 requirements for field power grounding. Wire the screw terminal to the PE point on your system.
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Logic, Sensor, and Actuator Power Distribution on the Island Bus
Logic Power
The NIM requires an external supply of 24 Vdc power. The NIM converts the supplied 24 Vdc, then provides 5 Vdc logic power to the I/O and HART interface modules in the primary island bus segment.
NOTE:
The illustrations presented below are simplified drawings that focus on a single island feature. The illustrations may not display every necessary component.
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The NIM can supply maximum current of 1.2 A to the island segment modules. If your island design requires more power than the NIM can provide, you can: z z install an STB CPS 2111 auxiliary power supply to provide additional logic power to the remaining (rightward) modules.
segment the island: Remove some modules from the primary segment to reduce the current draw on that segment to less than 1.2 A. Place these modules into an island extension segment with a BOS.
BOS and auxiliary power supply modules on STB island extension segments require their own 24 Vdc logic power source. This source can come either from the same power supply used by the primary island segment, or from an additional one. The same 1.2 A current limit applies to each extension segment. If a segment exceeds the 1.2 A current draw limit, auxiliary power supplies can also be added to the extension segment.
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Here is an illustration of the extension segment scenario:
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Operating voltages for the island range from 19.2 Vdc to 30 Vdc.
The power components are not galvanically isolated. Use them only in systems z z designed to provide SELV isolation between: the supply inputs or outputs, and the load devices or system power buses
CAUTION
IMPROPER GALVANIC ISOLATION
Use SELV-rated supplies to provide 24 Vdc source power to the NIM.
Failure to follow these instructions can result in injury or equipment damage.
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Planning the HART Multiplexer
Sensor and Actuator Power
For standard PDMs, provide power to the island sensor and actuator buses separately from external sources. The source power is fed to separate two-pin power connectors on the PDM. z z
The top connector is for the sensor (input) power bus.
The bottom two-pin connector is for the actuator (output) power bus
Depending on your application, you can use the same or different external power supplies
to feed the 24 Vdc sensor and the actuator busses.
For basic PDMs, provide power to both the sensor and actuator buses via a single two-pin power connector on the PDM.
24 Vdc Field Power Distribution
In the following illustration, an external power supply delivers 24 Vdc power to an
STB PDT 3100 PDM. The PDM, in turn, distributes field power to the island sensor and actuator busses:
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1 24 Vdc signal to the NIM logic power supply
2 24 Vdc signal to the segment sensor bus
3 24 Vdc signal to the segment actuator bus
4 optional relay on the actuator bus
Above 130 Vac, the relay module may compromise the double insulation provided by a SELV-rated power supply.
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CAUTION
COMPROMISED DOUBLE INSULATION
When you use a relay module, use separate external 24 Vdc power supplies for the PDM supporting that module and the logic power to the NIM or BOS module when the contact voltage is above 130 Vac.
Failure to follow these instructions can result in injury or equipment damage.
You can use the same power supply for both logic power and field power when: z z the I/O load on the island bus is low, and the system is operating in a low electromagnetic noise environment
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Understanding Multiplexer Island Power Supply and Consumption
Overview
When you design your HART multiplexer, consider: z the combined capacity of modules that supply logic, sensor and actuator power z to the island, and the load requirements of each module—including I/O modules and HART interface modules—that consume the supplied power
The operating temperature ranges for the STB HART multiplexer modules are listed in the following tables. The listed modules are designed to operate in an environment where the ambient temperature is in the range 0...60
°
C (32...140
°
F).
Input Voltage Power Supply Temperature Range Variations
Input voltage for NIMs, STB XBE 1300, STB XBE 1100, STB CPS 2111, STB PDT
3100 modules, and external power supplies can vary with temperature. For the normal operating temperature range of 0...60
°
C, the supply voltage range is
19.2...30 Vdc
NIM, BOS & Auxiliary Power Supply Modules
The operating temperature ranges for the STB NIM, BOS, and Auxiliary Power
Supply modules are as follows:
NIM, BOS, and Auxiliary Power Supply Modules
Model
STB NIP 2311
Product
Version
4.0
Type
STB CPS 2111 N/A
Dual Port Ethernet MB TCP/IP
NIM standard
Auxiliary Power Supply
STB XBE 1300 N/A BOS Extension Module
Logic Bus Current
Supply at 0...60
°
C
1.2 A
1.2 A
1.2 A
Check the front of the NIM
to confirm that it is product version 4.0 or higher.
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Analog I/O Modules
The heat generated by the following STB analog I/O modules is, under normal operating conditions, noticeably greater than the other STB I/O modules. The microprocessor and digital signal processor, required for these types of modules, primarily generate the heat in these modules. These components operate correctly at higher temperatures as noted by their respective manufacturers. The modules z z z z are:
STB ACI 0320 (4 channel analog, current input)
STB ACI 8320 (4 channel analog, current input)
STB ACO 0120 (1 channel analog, current output) z
STB ACO 0220 (2 channel analog, current output)
STB AHI 8321 (4 channel HART interface module)
The HART multiplexer operates in the range 0...60
°
C. When installing an STB island, mount the product vertically so that natural convection cooling is not impeded.
Logic bus current consumption amounts for analog modules operating in the normal operating temperature range are as follows:
Analog Input
Model
STB ACI 0320
STB ACI 8320
Type Logic Bus Current
Consumption @ 0...60
°
C
Cur, 4 ch, 4-20 mA, 16-bit standard 95 mA
Cur, 4 ch, 4-20 mA, 16-bit standard 95 mA
Analog Output
Model
STB ACO 0120
STB ACO 0220
Type Logic Bus Current
Consumption @ 0...60
°
C
Cur, 1 ch, 4-20 mA, 16-bit standard 155 mA
Cur, 2 ch, 4-20 mA, 16-bit standard 210 mA
Special Purpose Modules
Logic bus current consumption amounts for special purpose modules operating in the normal operating temperature range are as follows:
Special Purpose
Model
Type
STB AHI 8321
STB XBE 1100
Logic Bus Current Consumption @ 0...60
HART Interface Module 400 mA
EOS Extension Module 25 mA
°
C
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Power Distribution Modules
Field power supplied to I/O modules by the PDM operating in the normal operating temperature range are as follows.
PDM Model
STB PDT 3100
STB PDT 3105
Type Field Power Supplied to I/O
Modules @ 0...60
°
C
24 Vdc Power Distr. standard 8.0 A
24 Vdc Power Distr. basic 4 A
STB PDT 3100 Performance Considerations
For the STB PDT 3100 PDM, the maximum combined module current-the sum of the actuator and sensor currents-depends upon the island ambient temperature.
The following diagram presents a curve that plots the module’s maximum combined current against its operating temperature range.
58
This example shows: z At 60
°
C the total maximum combined current is 8 A z z
At 45
°
C the total maximum combined current is 10 A
At 30
°
C the total maximum combined current is 12 A
NOTE: At any temperature, the maximum actuator current is 8 A and the maximum sensor current is 4 A.
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Logic Bus Current Draw Variations
The total number of modules in a logic power supply group determines the total bus current drawn from the NIM, BOS, or auxiliary power supply. The more modules, the greater the amount of current required to support them. You can determine the total bus current required from the NIM by totaling the individual current requirements for the I/O modules residing on the island.
Verify that the total bus current value is within the allowable current draw range listed for the particular type of NIM module installed on the island. If the logic bus current z z draw exceeds the capacity of the NIM, either: divide the island segment into smaller segments, or add an auxiliary power supply to the segment
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Selecting Power Supplies
Overview
The power components are not galvanically isolated. They are for use only in systems designed to provide SELV isolation between the supply inputs or outputs and the load devices or system power bus.
CAUTION
IMPROPER GALVANIC ISOLATION z z z
Use SELV-rated supplies to provide 24 Vdc source power to the NIM and any
BOS or auxiliary power supply modules in your system
If you are using a relay module with a contact voltage above 130 Vac, do not use a common external 24 Vdc power supply for the PDM supporting that module and the logic power in the NIM, auxiliary power supplies, or BOS modules
Above 130 Vac, the relay module defeats the double insulation provided by a
SELV-rated power supply
Failure to follow these instructions can result in injury or equipment damage.
In an STB island, there can be three different connections that need 24 Vdc power from an external source: z z z logic power connection (to the NIM, to any auxiliary power supplies, and to any
BOS extension modules in the island) actuator power connection (to a PDM) sensor power connection (to a PDM)
Source power for these power connections can come from one or more supplies.
The following considerations should be considered when selecting your power options: z z z z z z field devices voltage and current needs isolation requirements
EMI/RFI suppression needs
CE requirements cost limitations
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Logic, Sensor, and Actuator Power
Use external 24 Vdc power to support the logic, sensor, and actuator requirements of each segment in your STB island.
For a standard STB PDT 3100 or a basic STB PDT 3105 PDM, verify that the power z z supplies you choose operate within a voltage range bounded by: a lower voltage limit of 19.2 Vdc an upper voltage limit of 30 Vdc
Wattage Requirements
Supply the NIM with at least 13 W of power. If your island uses a BOS or an auxiliary power supply, supply each such module on your island with at least 7 W of power.
NOTE: If the 24 Vdc source power supply also supplies field voltage to a PDM, add the field load to your wattage calculation. For 24 Vdc loads, the calculation is: amps x volts = watts .
Recommended Supplies
We recommend the Phaseo ABL8 family of 24 Vdc power supplies. Here are several possible power supply solutions to consider: z z z z one supply for 4-20 mA current loop power: ABL8 MEM 24003 one supply for three connections (logic power, actuator power, and sensor power): ABL8 RPS 24100 two supplies for three connections (one for logic power, one for actuator and sensor power
For logic power: ABL8 RPS 24030
For the 24 Vdc PDM: ABL8 RPS 24100 three supplies for three connections (one for logic power, one for actuator power and one for sensor power)
For logic power: ABL8 RPS 24030
For the 24 Vdc PDM sensor: ABL8 RPS 24050
For the 24 Vdc PDM actuator: ABL8 RPS 24100
For more information on recommended 24 Vdc Phaseo power supplies, contact your
Schneider Electric representative and ask for brochure 8440BR1001.
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HART
Building the Multiplexer
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4
Overview
This chapter describes how to assemble the physical components comprising an
STB HART multiplexer.
What Is in This Chapter?
This chapter contains the following topics:
Topic
Installing the DIN Rail
Installing the HART Enabled Ethernet NIM
Creating the Backplane of the Island Bus
Terminating the Island Bus
Inserting STB Modules into their Bases
Installing Extension Segments to the Island Bus
Page
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Installing the DIN Rail
Carrier Rails for the Island Bus
The STB modules are designed for mounting on 35 mm x 15 mm (1.38 in x 0.59 in) deep DIN rail conforming to IEC 60715. The use of 15 mm deep DIN rail is required to achieve the stated system performance specifications. As shown on the following illustration, install M5 threaded mounting hardware at the end positions and at
150 mm (5.91 in) maximum increments along the length of the rail.
Low profile 7.5 mm (0.30 in) deep DIN mounting rail can be used with low profile mounting hardware such as flat head screws, with countersunk mounting holes.
NOTE: z z
Mount the DIN rail on a grounded metal plate.
If you use low profile 7.5 mm deep DIN rail, the fastener screw head cannot protrude more than 1.0 mm (0.04 in) above the DIN rail.
Grounding Function
The DIN rail provides the functional ground
across the island.
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Installing the HART Enabled Ethernet NIM
The First Module on the Island Bus
Every STB island includes a single NIM. It is the first (leftmost) module on the DIN rail in the primary island segment. For the HART multiplexer island, use only a HART enabled Ethernet NIM, such as the STB NIP 2311 version 4.0 and higher.
How to Install the NIM
Unlike other STB modules, the mounting base of the NIM is permanently attached to the module. Install the NIM on the DIN rail in one piece, as follows:
Step
1
2
Action
Determine the exact location on the DIN rail where you want to position the NIM before you place it on the rail.
NOTE: Reserve sufficient space to the right of the NIM for the other island modules you want to mount on the DIN rail. In addition, reserve space for any DIN-mounted external devices you plan to use, for example, power supplies.
Turn the release screw (2) on the NIM so that the mounting clips on the back are in their relaxed state.
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CAUTION
UNINTENDED EQUIPMENT OPERATION
Do not slide the NIM along the DIN rail. Sliding the NIM can crush the functional ground (FE) contacts on the back of the NIM. Crushed FE contacts can prevent the creation of the FE connection
Failure to follow these instructions can result in injury or equipment damage.
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Building the Multiplexer
Step
3
Action
Align the mounting clips with the DIN rail and push the NIM onto the rail. The slope of the mounting clips causes the rail to open the clips when you apply light pressure.
4 When the module is pushed completely on to the rail, the clips snap closed.
For instructions on how to remove the NIM, refer to the Advantys STB System
Planning and Installation Guide .
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FE Contacts
Building the Multiplexer
One of the roles of the DIN rail is to provide a FE for the modules on the island. FE helps protect the island from radio frequency interference (RFI) and electromagnetic interference (EMI). The contacts on the back of the NIM, (3), make the functional ground connection between the rail and the NIM.
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Creating the Backplane of the Island Bus
Installation Plan
To help you install island modules in the correct sequence, create an installation plan before you begin the actual installation process. A useful installation plan z z describes: the sequence of modules the base required for each module
It is also helpful to use the STB XMP 6700 marking label kit to identify the module you plan to add to each base
Interlocking Base Units on the DIN Rail
After you attach the NIM to the DIN rail, create the island back plane by interconnecting the proper sequence of base units.
Start directly to the right of the NIM with a PDM base unit. Then add a series of base units for the modules you plan to add to the island. Base units are installed from left to right along the rail. These base units together with the NIM form the backplane for the primary segment of the island.
The following illustration depicts features that relate to connecting base units to the
DIN rail.
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1 Interlocking channels
2 Contacts
3 Contact channels
4 DIN rail latch
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The Base Units
The following table lists the base types.
Base Model Base Width STB Modules It Supports
STB XBA 1000 13.9 mm (0.53 in) size 1 I/O modules
STB XBA 2000 18.4 mm (0.71 in) size 2 I/O modules
STB XBA 2100 18.4 mm (0.71 in) the STB CPS2111 auxiliary power supply
STB XBA 2200 18.4 mm (0.71 in) PDMs
STB XBA 2300 18.4 mm (0.71 in) the BOS module
STB XBA 2400 18.4 mm (0.71 in) the EOS module
STB XBA 3000 28.1 mm (1.06 in) the STB AHI 8321 HART interface module and other size 3 modules
How To Attach Base units to the DIN Rail
The following steps describe how to attach base units to the DIN rail. When attaching base units, proceed in a left to right direction.
Step Action
1 Working from your installation plan, select an STB XBA 2200 base unit for the PDM to place directly to the right of the NIM.
2 Using a screwdriver, move the DIN rail latch on the base unit to its full open position.
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Step Action
3 Align the contacts on the base with the contact channels on the NIM and push the base toward the DIN rail until the interlocking channels meet. Using the interlocking channels as guides, slide the base toward the DIN rail (push from the center of the base). When the base meets the DIN rail, hold the base unit firmly against the DIN rail and push the DIN rail latch into the locked position.
4
5
Working from your installation plan, select the correct base unit for the module. Insert this unit directly to the right of the previous base unit; then repeat steps 2 and 3.
Repeat steps 2 ... 4 until base units for all the modules in the primary segment are installed.
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6 Refer to the procedures in the next topic
for information on installing the last device in the segment.
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Terminating the Island Bus
One or More Segments?
Terminate the last device on the HART multiplexer island bus with an
STB XMP 1100 termination plate, which is included in your NIM packaging.
z If the island bus is a single segment (without extension segments), terminate the island at the right end of the segment.
z If the island is extended
, terminate only the last segment of the island bus.
Termination Options
The following table describes the different ways to terminate the island bus, depending on the type of installation.
If the island bus includes...
A primary segment with no extension segments then...
Terminate the segment with an STB XMP 1100 termination plate.
A primary segment plus one or more extension segments
Install an STB XBA 2400 base at the end of the segment.
This base holds an STB XBE 1100 end of segment EOS module. Terminate at the end of the last segment with an
SCB XMP 1100 termination plate.
The EOS module provides a connector for a bus extension cable. This cable runs to the STB XBE 1300 (BOS) module placed in the first position in the extension segment.
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How to Terminate the Last Segment
To terminate the last segment on the island bus:
Step Action
1 Align the interlocking channels at the top and bottom left of the termination plate with the channels on the right side of the last module base.
2 Using the interlocking channels as guides, slide the plate toward the DIN rail until it snaps onto the rail.
For instructions on how to remove the termination plate, refer to the Advantys STB
System Planning and Installation Guide .
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Inserting STB Modules into their Bases
Preliminary Considerations
Each STB module slides into its base and locks with snap latches. Match each module with the base designed for use with that module. Before you install the modules in their bases, we recommend that you consult your installation plan
and confirm that you have the correct base in each position on the island backplane.
If you have not already done so, use the STB XMP 6700 marking label kit to identify the module you plan to add to each base.
How to Insert a Module in a Base
To install a module into its base:
Step Action
1 Guide the bottom of the module into the tray at the bottom of the base.
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1 Module to base latch (bottom)
2 Module base latch receptor (bottom)
3 Module latch (top)
4 Module to base latch receptor (top)
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Step Action
2 Push the bottom of the module toward the back of the base until the latch (1) fully engages the bottom of the base (2). A snapping sound is audible when the bottom of the module is engaged.
3 Push the top of the module inward until the latch (3) fully engages the top of the base (4). A snapping sound is audible when the top of the module is engaged.
4 Pull outward on the module to confirm that the module is affixed to its base.
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How to Remove a Module from its Base
Only remove a module from its base when power to the island is disconnected.
NOTE: z z
If you remove an I/O module from the island, any connected sensor or actuator field instruments will no longer work.
If you remove a module configured as a mandatory module, island operations stop.
To remove a module from its base:
Step Action
1 Remove any wiring connectors from the module.
2 Using both hands, release the module from the base by depressing the two module to base latches. Latches are located on both the top and on the bottom of the module.
1 Module to base latch (top)
2 Module to base latch (bottom)
3 With a rocking motion, slowly pull the module evenly out of the base.
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Installing Extension Segments to the Island Bus
How to Build an Extension Segment
Build a HART multiplexer extension segment the same way you would build the primary segment, with one exception. Place a beginning of segment (BOS) module in the first position, instead of a NIM.
The BOS module mounts in a special size 2 base, the STB XBA 2300. A BOS delivers logic power across the extension island backplane. Like the NIM, connect a BOS module to an external 24 Vdc power supply.
The rest of the modules are assembled the same as in a primary segment. The second module is a PDM followed by other STB modules.
The last device in the segment can be: z z an STB XMP 1100 termination plate, if placed at the end of the island bus an STB XBE 1100 EOS module, if the island bus includes one or more additional segments
An example of a primary segment with extension segment:
1 Primary island segment
2 Extension segment
3 Network interface module (NIM)
4 Power distribution module (PDM)
5 STB XBE 1100 EOS module
6 STB XBE 1300 BOS module
7 STB XCA 100x extension cable
8 Island bus termination plate
Length of the Island Bus
The maximum length of an island bus (the maximum distance between the NIM and the last device on the island) is 15 m (49.2 ft). This length includes the extension cables between segments, extension cables between preferred modules, and the space consumed by the devices themselves.
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EOS/BOS Paired Modules z z
You can use an EOS module to connect to either: a BOS module in the first position of an extension segment a preferred module
Refer to the Advantys STB System Planning and Installation Guide for instructions on how to connect a primary segment to a preferred module.
When joining island bus segments together, only paired EOS/BOS modules work with one another. Use the STB XBE 1100 EOS module and the STB XBE 1300
BOS module when extending HART multiplexer island segments
Connectors
The STB XBE 1300 BOS module can accept 24V-DC voltage from a 24V-DC power supply connected to its 2-pin power connector. This module can then pass power to the modules on its segment.
Both of the following connectors, which are included with the EOS and BOS z z modules as part of the kit, can connect to the modules 2-pin connector: a screw type power connector, available in a kit of 10 (model STB XTS 1120) a spring clamp power connector, available in a kit of 10 (model STB XTS 2120)
Island Bus Extension Cables
The STB XCA 100 x island bus extension cable connects two STB island segments: z One cable end plugs into the island bus communications output port on the front z panel of the EOS module (at the end of a segment)
The other end plugs into the island bus communications input port on the front panel of the BOS (at the beginning of the next segment).
Bus extension cables are available in five lengths:
Model
STB XCA 1001
STB XCA 1002
STB XCA 1003
STB XCA 1004
STB XCA 1006
Cable Length
0.3 m (1 ft)
1.0 m (3.3 ft)
4.5 m (14.8 ft)
10.0 m (32.8 ft)
14.0 m (45.9 ft)
Each cable has IEEE 1394-style connectors on each end. The cable does not transmit the 5-Vdc logic signal to the next segment.
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How to Extend the Island Bus
Use the following procedure to extend the island bus from one end of segment
(EOS) module to the next beginning of segment (BOS) module:
1 Confirm that the STB XBE 1100 EOS module is in the last (right-most) position in the previous segment.
2 Install the matched STB XBE 1300 BOS module (in an STB XBA 2300 base) in the first position in the extension segment.
3 Build the rest of your segment, starting with the appropriate PDM (in an
STB XBA 2200 base) next to the BOS module.
4 Use an extension cable to connect the EOS module in the previous segment to the matched STB XBE 1300 BOS module in the extension segment.
5 Connect the BOS module to your source power supply.
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HART
Grounding the HART Multiplexer
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5
Overview
This chapter presents techniques for grounding the HART multiplexer.
What Is in This Chapter?
This chapter contains the following topics:
Topic
Galvanic Isolation Requirements for Power Supplies on the Island Bus
Voltage Cut-out Switching
Creating a Protective Ground Connection
Creating a Functional Ground Connection
Using EMC Kits
Page
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Grounding the HART Multiplexer
Galvanic Isolation Requirements for Power Supplies on the Island Bus
Isolation Requirements
Verify that the power sources for the NIM and any other auxiliary power supply or
BOS modules are galvanically isolated. Galvanic isolation is not provided by the
NIM, BOS or auxiliary power supply modules.
External Power Supply Requirement
Use only SELV-rated external 24 Vdc power supplies to provide power to the island bus. Verify that the input side is galvanically isolated from the output side.
This SELV requirement applies to 24 Vdc power supplies supporting both logic power and field power.
The power components are not galvanically isolated. They are for use only in systems designed to provide SELV isolation between the supply inputs or outputs and the load devices or system power bus. Above 130 Vac, the relay module defeats the double insulation provided by a SELV-rated power supply.
CAUTION
IMPROPER GALVANIC ISOLATION z z
Use SELV-rated supplies to provide 24 Vdc source power to the NIM and any
BOS or auxiliary power supply modules in your system.
If you are using a relay module with a contact voltage above 130 Vac, do not use a common external 24 Vdc power supply for the PDM supporting that module and the logic power in the NIM, auxiliary power supplies, or BOS modules.
Failure to follow these instructions can result in injury or equipment damage.
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Voltage Cut-out Switching
Advantage of the Power Distribution Method
One of the key features of an STB island featuring a standard NIM is the separate distribution of field power to input and output modules. The STB PDT 3100 standard
PDM distributes field power to island modules via a sensor bus. It independently distributes field power to the output modules over an actuator bus.
You can test your application program with live inputs while the outputs are disabled.
To do this place a relay or switch installed between the source power supply and the actuator bus connection on the standard PDM,
Here is an example of this relay or switch setup:
Recommended Relays
Schneider Electric recommends its Preventa line of relays. For a complete selection, contact your Schneider representative and ask for catalog MKTED208051EN-US-
2011-SU.
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Creating a Protective Ground Connection
PE Contact for the Island
In addition to distributing sensor and actuator power to the I/O modules, the PDM can provide protective ground (PE) to the multiplexer. On the bottom of each
STB XBA 2200 PDM base is a captive screw in a plastic block. Use the captive screw, on every PDM base in the multiplexer, to make a PE contact with the island bus.
How to Make a PE Contact
To create a PE contact:
Step Action
1
2
3
Bring a PE connection to the HART multiplexer island using a heavy-duty crosssectional wire, usually a copper braided cable that is 6 mm
2
or larger.
Connect the protective ground conductor to the bottom of the PDM base, using the
PE captive screw.
Tie the wire to a single grounding point.
NOTE: Local electrical codes take precedence over our PE wiring recommendations.
Making Multiple PE Connections
If the multiplexer island includes more than one PDM, distribute PE by connecting a protective ground conductor to each PDM base
.
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This illustration shows separate PE connections tied to PE protective ground points:
1 the NIM
2 a PDM
3 another PDM
4 captive screws for the PE connections
5 FE connection on the DIN rail
6 Protective ground points
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Grounding the HART Multiplexer
Creating a Functional Ground Connection
Functional Ground (FE) on the DIN Rail
The DIN rail for your STB island is the functional ground (FE) plane for your system.
EMI and RFI are suppressed at the DIN rail. The contacts—on the back of both the
NIM and the module bases—establish the connection between the functional ground and your island.
Rail Mounting Tips
Create the FE connection by mounting the NIM and the module bases on the DIN rail.
CAUTION
UNINTENDED EQUIPMENT OPERATION
Do not slide the NIM along the DIN rail. Sliding the NIM can crush the functional ground (FE) contacts on the back of the NIM. Crushed FE contacts can prevent the creation of the FE connection.
Failure to follow these instructions can result in injury or equipment damage.
When performing this task, consider the following tips: z Do not slide the NIM and the module bases along the DIN rail when installing them. Sliding them along the DIN rail can crush the FE contacts on the back of z the NIM and bases. Crushed FE contacts can prevent the creation of the FE connection.
If you are using 7.5 mm (0.30 in) DIN rail, use flat-head threaded mounting hardware. Countersink the mounting hardware so that the head does not protrude more than 1 mm (0.04 in) above the DIN rail.
NOTE: If the top of the mounting hardware protrudes 1 mm or more above the DIN rail, the base units may not be able to make proper contact with the DIN rail and create an FE connection.
z A 7.5 mm DIN rail can support vibration conditions up to 3 g. For high vibration environments (up to 5 g), use 15 mm (0.59 in) DIN rail and fasten the rail to the mounting surface along areas where the island modules are mounted. Confirm that the screw heads on 15 mm rail are sufficiently recessed so that they do not interfere with the base-to-rail FE contacts.
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Using EMC Kits
Overview
EMC kits reduce electromagnetic and radio interference by grounding the shielded cables entering your island modules at close proximity.
The STB XSP 3000 kit comes with a 1 m (39.37 in) grounding bar that can be cut to needed lengths.
z z
Reasons to use the EMC kits on the HART multiplexer island include: to make STB analog I/O modules CE compliant to enable the use of shielded cables that help protect analog signals from interference from RFI/EMI
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Grounding the HART Multiplexer
The following illustration depicts an STB island segment with an EMC kit making the analog I/O modules CE compliant.
86
1 metal mounting, grounded surface
2 the DIN rail attached to metal mounting surface
3 Functional ground (FE) grounding point
4 EMC side brackets
5 PDM PE screw
6 EMC FE clamp
7 FE grounding bar from an STB XSP 3000 EMC kit, used as a FE point for shielded cables and as a cable stabilizer
8 EMC cable clamp
9 cable channel
10 6 mm
2
braided cable to plant protective ground
11 Protective ground (PE) grounding point (made as close as possible to the I/O)
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The Kits
Grounding the HART Multiplexer
Schneider Electric offers 3 kits you can use to provide functional ground to your shielded cable. An initial setup consists of an STB XSP 3000 kit and at least one of the cable clamp kits (STB XSP 3010 or STB XSP 3020). STB XSP 3010 kit comes with ten cable clamps for 1.5 mm to 6.5 mm (0.059 to 0.256 in) size cable.
STB XSP 3020 kit comes with ten cable clamps for 5 mm to 11 m (0.19 in to
36.09 ft) size cables.
Kit Comes with...
STB XSP 3000 two side brackets, one 1 m grounding bar and one FE grounding clamp
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STB XSP 3010 10 small cable clamps for 1.5mm to 6.5mm (0.059 to 0.256 in) cable
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Grounding the HART Multiplexer
Kit Comes with...
STB XSP 3020 10 medium cable clamps for 5mm to 11mm (0.19 in to 36.09 ft) cable
STB XSP 3000 Assembly
Use the following procedure to assemble an STB XSP 3000 kit.
Step Action
1 Open kit STB XSP 3000 and confirm you have the two side brackets, one grounding bar and one FE grounding clamp.
2 Assemble an STB island segment.
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Step Action
3 Loosen the bracket lockdown screws on each side bracket. Attach the side brackets to the DIN rail on both ends of your assembled STB island segment. They gently snap into place.
4 Push the side brackets toward both ends of your segment so that they are snug against its walls, and tighten the lockdown screws.
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Grounding the HART Multiplexer
Step Action
5 Determine the grounding bar length by measuring the distance between the outsides of the side bracket/segment assembly and add 1 cm (0.39 in). You can estimate a different bar length to meet your particular needs. Cut the bar to length.
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The grounding bar is originally 1 M (9.37 in) long x 18 mm (0.71 in) wide x 3 mm
(0.12 in) thick. It is made of tinned copper. Contact a supplier to order extra grounding bars.
6 With the bar cut to length, slide the FE grounding clamp onto the grounding bar.
Tighten the lockdown screw on top of the clamp.
7 Attach the grounding bar to the side brackets and tighten the lockdown screws on the side brackets.
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Step Action
8 Attach the clamp to your supplied functional ground using flat braided grounding cable.
Clamp and Cable Assembly
Use the grounding clamps to attach the shielding of the stripped cable to the FE grounding bar.
Step Action
1 Position the grounding clamp in front of the module to which you intend to fasten the wiring. Pull back the spring loaded lock down bolt on the clamp. Slip the clamp onto the grounding bar, then release the lockdown bolt.
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Grounding the HART Multiplexer
Step Action
2 Strip 2.5 cm (0.98 in) of insulation off your cable to expose the braided shield.
(Confirm the cable on either side of the stripped area is long enough to reach the
I/O and field instruments). Pull back on the spring loaded lockdown bolt and slip the cable into the clamp. Release the lockdown bolt.
Alternatively, you can clamp your cable to the grounding bar while you attach the cable clamp to the bar.
3 Connect your cable to its I/O and devices.
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HART
Assigning an IP Address to the HART Multiplexer
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Assigning an IP Address to the
HART Multiplexer
6
Overview
Now that you have built the multiplexer, you need to give it an IP address to be able to communicate with it. This chapter describes several different ways to do this.
What Is in This Chapter?
This chapter contains the following topics:
Topic
Assigning an IP Address to the HART Multiplexer
Determining the HART Multiplexer Default IP Address
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Assigning an IP Address to the HART Multiplexer
Planning your Ethernet Network
Before you assign an IP address to your multiplexer, it is helpful to first develop a plan for how you will assign an IP address to each device. Such a plan should z z identify: the network prefix of the IP address the (optional) use of subnet masks to organize your network into logically distinct subdivisions z the unique IP address to be assigned to each addressable device
Assignment Methods
The HART multiplexer island communicates to a PLC and to asset management software (resident on a connected PC) over Ethernet. To prepare the multiplexer for
Ethernet communications, assign IP parameter settings to the HART enabled
Ethernet NIM. z z z
You can set the IP address of the multiplexer island’s NIM in several different ways, including the use of: the rotary switches on the front of the NIM the NIM embedded web pages
Advantys configuration software connected to the NIM via Ethernet or a serial cable
For information on using the NIM embedded web pages, refer to the documentation that comes with your HART enabled Ethernet NIM, for example the STB NIP 2311.
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Rotary Switches
Use the rotary switches on the front of the HART enabled Ethernet NIM to specify how the NIM obtains its IP address settings:
IP Parameter Assignment Sources
Before assigning an IP address, use the rotary switches to clear the NIM stored IP parameters. After setting the lower switch to either CLEAR IP setting, cycle power to the NIM to clear the previous IP address.
You can assign a new IP address using the following rotary switch settings: z DHCP server: z z
Set the upper and lower switches to numeric values—from 00 to 159—to create a device name. Do this by using both switches, as follows:
On the upper switch (tens digit), the available settings are 0...15.
On the lower switch (ones digit), the available settings are 0...9.
The device name is the three-digit concatenation of the module name, the upper switch value, and the lower switch value. For example, for an STB NIP 2311 NIM: z an upper switch setting of 12 and a lower switch setting of 3 creates a device name of STBNIP2311_123 , or z an upper switch setting of 1 and a lower switch setting of 3 creates a device name of STBNIP2311_013
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NOTE: You also need to separately configure a DHCP server to assign the desired
IP address to the NIM based on this device name. For example, you can use the
DHCP server that is included in your Schneider Electric PLC Ethernet communication module.
z BootP server:
For a BootP-served IP address, select either of the two BOOTP positions on the bottom switch. (The setting of the top switch is ignored.)
NOTE: Separately configure a BootP server to assign the desired IP address to the
NIM based on the NIM MAC ID. For example, you can use the BootP server that is included in your Schneider Electric PLC Ethernet communication module.
z z
Static IP address settings:
Set the lower switch to one of its two STORED positions. (The setting of the upper switch is ignored.) Then, use either the Advantys configuration software or the
HART enabled Ethernet NIM embedded web pages to input IP address settings.
Any assignment takes place on next power cycle.
The two CLEAR IP settings clear the NIM stored IP parameters, leaving the island without an IP address.
NOTE: After you use the rotary switches to specify the IP addressing source, cycle power to the NIM to configure the IP address.
If the NIM does not receive its IP address setting via the selected method, it assigns a default IP address based on its MAC address
. The MAC address for a NIM is displayed above the Ethernet ports on the front of the module.
IP Address Assignment Flowchart
The NIM performs the following checks to determine the IP address:
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Determining the HART Multiplexer Default IP Address
Deriving an IP Address from a MAC Address
The STB NIP 2311 NIM assigns itself a default IP address—derived from its MAC address—when it does not receive an IP address by the method specified by the z z rotary switches. For example, a default IP address is assigned if: the bottom (ONES) switch is set to CLEAR IP the top (TENS) and bottom (ONES) switches are set to numerical values, but no
DHCP server assigns an IP address to the NIM z z the bottom (ONES) switch is set to BootP, but no BootP server assigns an IP address to the NIM the bottom (ONES) switch is set to STORED, but no user-defined IP address has been input using either the Advantys configuration software or the web pages.
This situation occurs, for example, when a new NIM is being used for the first time
The 32-bit default IP address of the NIM is derived from the last 2 octets of its 48-bit z z
MAC address. The default IP address observes the format 10.10.
x .
y , where:
10.10. are constants x .
y . are the decimal values of the last 2 hexadecimal octets of the MAC address.
The following example shows you how to convert the two x .
y . octets from hexadecimal to decimal format and identify the default IP address:
Step Action
1 Using a sample MAC address of 00-00-54-10-25-16, ignore the first four pairs (00-00-
54-10).
2
3
Convert the last two pairs ( 25 and 16 ) from hexadecimal to decimal format.
25: (2 x 16) + 5 = 37
16: (1 x 16) + 6 = 22
Observe the specified format (10.10.
x .
y .) to assemble the derived default IP address.
The default IP address is:
10.10.37.22
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Configuring the HART Multiplexer
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7
Overview
Before placing the STB AHI 8321 HART interface module into operation, configure its operating parameters. There are several ways to configure the STB AHI 8321, including: z Use the HART enabled Ethernet NIM auto-configuration function to apply default parameter settings to all configurable island modules, including the
STB AHI 8321 HART interface module.
z z
Use the Advantys configuration software to customize the default configuration of the STB AHI 8321 HART interface module, and any other island module with configurable settings.
If you previously saved the STB island configuration settings to a SIM card, you can also apply those saved settings to the island.
What Is in This Chapter?
This chapter contains the following topics:
Topic
Auto-Configuring the HART Multiplexer
Customizing the HART Multiplexer Configuration
Configuring STB AHI 8321 Channel Settings
Mapping Data items to the HART Multiplexer Island Data Process Image
Viewing the IO Image for the STB AHI 8321 HART Interface Module
Configuring the STB AHI 8321 Module as Mandatory or Not Present
Data Process Image Items for the STB AHI 8321 HART Interface Module
Using the STB XMP 4440 Optional Removable Memory Card to Configure the
Island
Applying a Stored Configuration to the HART Multiplexer
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Auto-Configuring the HART Multiplexer
Factory Default Settings
Every configurable STB module is shipped with a set of predefined parameter settings. When you apply these predefined parameter settings, the HART multiplexer island becomes operational. You can apply the default settings via autoconfiguration.
When you auto-configure the HART multiplexer island, the following default parameter settings are applied to each STB AHI 8321 HART interface module in the multiplexer island:
Parameter
CH-Enable
Description Default Setting
The states—enabled or disabled—of the four channels of the HART interface module.
15 (all channels are enabled)
Channel 1...4 Settings z Lower Scan Address The first address, of a range of addresses, scanned by the HART interface module when looking for a HART instrument on the channel.
0 z Upper Scan Address The last address, of a range of addresses, scanned by the HART interface module when looking for a HART instrument on the channel. z Number of Preambles The minimum number or preambles the HART interface module uses to communicate with a HART instrument.
15
5 z z
Number of
Communication Retries
The number of times the HART interface module will re-send a command after failing to communicate with a HART instrument.
Number of Busy Retries The number of times the HART interface module will re-send a command after receiving a busy reply from a HART instrument.
5
2 z Fallback Mode Setting If the HART instrument on this channel is disconnected, or if there is no HART instrument, this value is assigned to the field instrument variables until a connection to a HART instrument is made.
NaN
NOTE: Your HART multiplexer island can also include the following analog I/O modules: z z z z
STB ACI 0320
STB ACI 8320
STB ACO 0120
STB ACO 0220
Refer to the Advantys STB Analog I/O Modules Reference Guid e for a description of analog I/O default parameter settings.
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To perform auto-configuration, you can use either: the RST button on the front face of the NIM the Online
→
Force Auto-configuration command in the Advantys configuration software
The simplest way to auto-configure the HART multiplexer is to use the RST button.
NOTE: Auto-configuration overwrites any pre-existing custom configuration with default settings for island modules. If you have previously used Advantys configuration software to apply a custom configuration
to your HART multiplexer island, do not press the RST button or force auto-configuration.
CAUTION
UNINTENDED EQUIPMENT OPERATION
Do not press the RST button—or force auto-configuration—for a HART multiplexer island that is operating using an application that was custom configured with
Advantys configuration software.
Failure to follow these instructions can result in injury or equipment damage.
The RST Button
The RST button performs a Flash memory overwrite operation. The RST button is located immediately above the CFG port on the NIM, behind the NIM hinged cover:
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How to Perform Auto-Configuration
To perform auto-configuration, follow these steps:
Step Action
1 Remove any SIM card
from the NIM.
2 Using a small screwdriver with a flat blade no wider than 2.5 mm (0.99 in), press the
RST button and hold it down for at least 2 seconds.
Do not use: z z a sharp object that can damage the RST button, or a soft item like a pencil that can break off and jam the RST button
If the HART multiplexer island was previously auto-configured, auto-configuration changes no parameter settings. However, the HART multiplexer island stops updating I/O during the auto-configuration process.
If you previously used Advantys configuration software to edit the island parameters, auto-configuration overwrites your customized settings with the factory default parameters.
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Customizing the HART Multiplexer Configuration
Using Advantys Configuration Software
After the HART multiplexer island is powered up and auto-configured, you can use the Advantys configuration software to upload the default island configuration, where you can customize the configuration.
NOTE: You do not need to use the Advantys configuration software to operate your
HART multiplexer. Using the RST button, you can apply default settings
to each module in your island, and continue to operate the multiplexer in its default configuration. However, Schneider Electric recommends that you use Advantys configuration software to configure and monitor your HART multiplexer.
z z
You can use the Advantys configuration software to: z create, modify, and save the logical description of the physical devices used in a project z monitor, adjust data values, and debug the project in online mode view a graphical display of the selected equipment and a hierarchical display of the island (the Workspace Browser ) enhance performance of specific modules
For information on how to use the Advantys configuration software to configure the configurable modules in your HART multiplexer island, refer to the Advantys configuration software online help. Detailed instruction on how to use Advantys configuration software is beyond the scope of this document.
Customizing the STB AHI 8321 HART Interface Module
To customize the configuration of the HART multiplexer island, including the STB
AHI 8321 HART interface module, you need to use the Advantys configuration software. In the Advantys configuration software, with the island unlocked, select a
HART interface module in the island and open the Module Editor , which presents the following tabs: z Use the Parameters
AHI 8321 module.
tab to access and edit configurable parameters for the STB z z
Use the I/O Mapping tab to edit the multiplexer island data process image, by adding and removing STB AHI 8321 module data items.
Use the IO Image tab to view a list of STB AHI 8321 module data process image items for the selected HART interface module.
z z z
Use the Options tab to specify that the STB AHI 8321 module is:
a mandatory island module not present, but its place preserved in the island process image
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Schneider Electric Technical Support
Schneider Electric provides technical support for its products, including the
Advantys configuration software. To reach Schneider Electric tech support, visit www.Schneider-Electric.com and click on the image for the Schneider Electric
Customer Care Center .
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Configuring STB AHI 8321 Channel Settings
Configuring HART Interface Module Channel Properties z z
Use the Parameters tab of the Module Editor for the STB AHI 8321 module to configure the HART channels. In this tab, you can: enable or disable each of the module’s four HART channels define the range of address the STB AHI 8321 module scans when searching for z a HART instrument on each HART channel specify the minimum number of preambles the STB AHI 8321 module uses to communicate with a HART instrument
Create the STB AHI 8321 module configuration settings offline, then download them—along with the rest of the multiplexer island settings—to the NIM. The NIM uses these settings to configure the STB AHI 8321 module before placing the island into the run state.
NOTE: You cannot configure values or labels when the island is locked or online.
For editable parameters, the valid value range is displayed in the status bar of the
Module Editor .
The Parameters tab:
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NOTE: Configuration changes entered in this tab take effect only after you use the
Advantys Configuration Software to:
1.
save your edits by clicking either the OK or Apply button
2.
download the island configuration by using: a.
the Online
→
Connect command to connect to the island b.
the Online
→
Download into the Island command to send the configuration to the island
Configurable Parameters
You can configure the following parameters for the STB AHI 8321 HART interface module:
Parameter Name Description
CH-Enable The state of all four of the HART channels. The CH-Enable value equals the sum of the bit value for each channel that is enabled: z z z z bit 0 (channel 1) has a value of 1, when enabled bit 1 (channel 2) has a value of 2, when enabled bit 2 (channel 3) has a value of 4, when enabled bit 3 (channel 4) has a value of 8, when enabled
The default value is 15, indicating all 4 HART channels are enabled.
NOTE: When CH-Enable appears as a parameter in this tab, it is not mapped to the process image and cannot be controlled by program logic. You can map the CH-Enable parameter to the process image by selecting it in the I/O Mapping tab. z Channel 1...4
Bit 0 (channel 1), bit 1 (channel 2), bit 2 (channel 3), bit 3 (channel 4) of CH-Enable. Sets the status of the selected channel to one of the following settings: z z
0 = disabled
1 = enabled (default)
Channel 1...4 Settings z Lower Scan
Address z Upper Scan
Address
Use these two settings to establish the address range the HART interface module searches when looking for a HART instrument on the specified channel.
z z minimum value = 0 maximum value = 63
Lower Scan Address Default = 0; Upper Scan Address Default = 15.
NOTE: The value of the Upper Scan Address must be equal to or greater than the value of the Lower Scan Address.
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Parameter Name Description z Number of
Preambles
The minimum number of preambles the HART interface module uses to communicate with a HART instrument. If the HART instrument requires: z more preambles, the HART interface module sends more preambles z fewer preambles, the HART interface module sends the minimum number configured by this setting
Default = 5.
z Number of
Communication
Retries z Number of Busy
Retries
The number of times the HART interface module re-sends a command to a non-responsive HART instrument. Valid values = 0, 1, and 2.
Default = 5.
The number of times the HART interface module re-sends a command after receiving a busy reply from a HART instrument. Valid values = 0,
1, and 2. Default = 2.
z Fallback Mode
Setting
If the HART instrument on this channel is disconnected, or if there is no HART instrument, this setting determines the value that is assigned to the primary variable ( PV ) until a connection to a HART instrument is made: z z z
0 - Set to 0
1 - Hold Last Value
2 - Not a Number (NaN)
Default = NaN
Restore Default Values
You can click the Restore Default Value button to reset the modified values on this tab to their default values.
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Mapping Data items to the HART Multiplexer Island Data Process Image
Editing the HART Multiplexer Data Process Image
You can modify the HART multiplexer island data process image only by using the
Advantys configuration software. You can use the I/O Mapping tab of the Module
Editor to perform the following tasks for a selected STB AHI 8321 module: z Add data items to, or remove data items from, the multiplexer island data process z image relating to the selected STB AHI 8321 module
Configure the CH-Enable parameter for the selected STB AHI 8321 module as z z either: a static property manually set in the Parameters tab of the Module Editor , or a dynamic property controlled by program logic z z
Restore the default list of input and output data items included in the island data process image by clicking the Restore Default Values button
Display the data type and object ID for each input and output data item
I/O mapping lets you optimize the HART multiplexer island process image on a module-by-module basis. The title bar at the top of the Module Editor displays the name of the HART interface module and its exact location on the island bus.
The I/O Mapping tab:
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NOTE: Configuration changes entered in this tab take effect only after you use the
Advantys configuration software to:
1.
save your edits by clicking either the OK or Apply button
2.
download the island configuration by using: a.
the Online
→
Connect command to connect to the island b.
the Online
→
Download into the Island command to send the configuration to the island
Both the Input Data and the Output Data areas present the following columns:
Column Name Description
Data Item Name Displays both mapped and unmapped data items.
I/O A check mark indicates the data item is mapped to the island data process image. You can manage the quantity of data included in the
HART multiplexer data process image by selecting or de-selecting data items in this column.
NOTE: A gray background in this column indicates the data item is part of the data process image and cannot be deleted.
User Defined
Label
Displays the labels associated with each data item. You can edit labels for a single HART interface module in the I/O Image tab and the
Parameters tab of the Module Editor .
NOTE: You can also use the Island
→
Label Editor...
command to open a Label Editor and edit labels for the entire island.
NOTE: Saving an added or deleted data item in this tab simultaneously adds or deletes it in the IO Image tab.
icon If the current setting of any data item is different from its default setting, the is displayed to the left of the Hexadecimal check box.
To restore input and output data items to their default mappings, click
Restore Default Values in offline mode.
Mapping Input Data Items
For information describing individual input data items, refer to the topic
STB AHI 8321 Input Items
.
Mapping Output Data Items
For information describing individual output data items, refer to the topic
STB AHI 8321 Output Items
.
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Viewing the IO Image for the STB AHI 8321 HART Interface Module
Viewing Mapped Data Items
Use the IO Image tab of the Module Editor for the STB AHI 8321 module to: z view the STB AHI 8321 module data items that are part of the multiplexer island z data process image add user-defined labels to items in the list
The title bar of the Module Editor displays the name of the module and its exact location on the island bus.
The IO Image tab:
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The IO Image tab presents the following columns:
Column Name Description
Data Item Name Displays data items, for the selected STB AHI 8321 module, that have been mapped to the HART multiplexer island data process image. Items that appear in this column are selected in the I/O Mapping tab
Current Value Current Value: Displays the current value for each mapped data item.
You can toggle the format of the displayed values between decimal (the default) and hexadecimal by selecting or clearing the Hexadecimal check box.
NOTE: The actual values are displayed only when the island is online and in either the operational state or the non-mandatory module mismatch state. For other states, the symbol -- is displayed.
User Defined
Label
Displays the labels associated with each data item. Double-click in the appropriate cell to enter label text. Each label can be up to 24 characters long.
Memory Address Displays the Modbus register address for parent data items. Values in this column are read-only
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Configuring the STB AHI 8321 Module as Mandatory or Not Present
Introduction z z
Use the Options tab of the Module Editor to indicate if the STB AHI 8321 HART interface module is: a mandatory island module
a module that is not present
in the island
The Options tab of the STB AHI 8321 HART interface module:
112
The Prioritize parameter is disabled and does not apply to the STB AHI 8321HART interface module.
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Mandatory Module
Select the Mandatory Module setting to designate the module as mandatory. If a mandatory module stops operating or is removed from the island, the island stops writing to outputs, and island modules go to their fallback states.
z z
The island returns to its operational state after you install at this exact location on the bus: the same functional module a new module of the same type and major version number
By default, the Mandatory Module setting is de-selected.
NOTE: The Mandatory check box can be selected or de-selected only when the island is in offline mode.
Not Present
Check this box to mark the module as virtual placeholder.
The virtual placeholder designation lets you physically remove both a module and its base from the island without changing the island process image. In this way, you can physically remove one or more modules without having to edit the PLC program that controls the island.
In the Module Editor , modules configured as Not Present are marked with crossed red lines.
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Data Process Image Items for the STB AHI 8321 HART Interface Module
Input and Output Data Process Image Items
The STB AHI 8321 HART interface module supports the mapping of HART instrument input and output data items to the HART multiplexer island process image.
Input Data Items
The Input Data area of the I/O Mapping tab of the Module Editor lists read-only input items for the STB AHI 8321 HART interface module. These items can be added to the HART multiplexer island data process image, and include:
Data Item
Module Status
Channel 1...4 Status
Data
Type
Word
Word
Mapped by
Default?
Yes
Yes
Alignment Word No
Channel 1...4 Hart Instrument Specific Variables:
Primary Variable
(Channel 1...4 Input Data)
Instrument Status
Float
32 bit unsigned
Yes
No
Is Default Mapping
Editable?
No
No
Yes
Yes
Yes
Bytes
2
2
2
4
4
Secondary Variable
Current Value
Percent Value
Update Counter
Float
Float
Float
32 bit unsigned
No
No
No
No
Yes
Yes
Yes
Yes
4
4
4
4
NOTE: You can monitor the status of the mapped input data items, listed above, as follows: z z you can view all of the mapped input data items in the Advantys configuration software Module Editor for the selected STB AHI 8321 HART interface module, or you can view many of the mapped input data items in the diagnostic web pages for the HART enabled Ethernet NIM
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Module Status
The Module Status word presents a snapshot of the overall health of the HART interface module and its 4 channels.
Bit Number
0
1
2
3
4...6
7
8...15
Name
Global Status
Disconnected
Instrument
Changed, Minor
Instrument
Changed, Major
—
ICE
—
Description
= 1 if the HART interface module has detected one or more of the following conditions: z one or more HART channels are disconnected (Bit 1 z
(Disconnected) = 1) a HART channel is connected to a field device that is materially different from the device configured for that z channel; e.g., a device of different device type or made by a different manufacturer. (Bit 3 (Instrument
Changed, Major) = 1) an internal communication event—ICE—has occurred
(Bit 4 (ICE) = 1)
= 1 if any channel is in the disconnected (CH-
Disconnected) state
=1 if any channel is in the instrument changed, minor
state
=1 if any channel is in the instrument changed, major
state
= 0 (not used)
= 1 on the occurrence of an internal communication event
= 0 (not used)
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Channel Status
The Channel Status words report the status of each of the STB AHI 8321 HART interface module’s four channels. Channel Status values are as follows:
2
3
Value
0
1
4
5
Name
CH-Disabled
CH-Connecting
CH-Connected
CH-MinorDiff
CH-MajorDiff
CH-Disconnected
6...255
—
Description
The channel is disabled.
The STB AHI 8321 is searching for, and attempting to connect with, a HART instrument on the channel.
The channel is connected to a HART instrument.
One or more minor differences
exist between the connected HART instrument and the instrument description in the multiplexer island configuration.
One or more major differences
exist between the connected HART instrument and the instrument description in the multiplexer island configuration.
This state indicates either: z The STB AHI 8321 discovered no HART instrument on the channel, after performing two scans of the specified address range.
z The STB AHI 8321 discovered a HART instrument on the channel, but the connection was lost.
The STB AHI 8321 continues to search for a HART instrument on this channel.
(not used)
Alignment
Use this parameter to place data objects on a 32-bit boundary, for architectures— such as the Schneider Electric M340 platform—that require input data to be read or written in 32-bit (2 register) increments. Mapping this parameter to the input data process image adds a 2 byte (1 register) buffer to the I/O image immediately in front of the input data.
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You can use the I/O Image tab of the Module Editor in the Advantys configuration software to determine whether input data for an STB AHI 8321 HART interface module resides on a 32-bit boundary.
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In the above example, the Alignment parameter is not enabled. Input data begins at memory address 45426. Because 45426 is an even number, input data begins at a 32-bit boundary. In this case, it is not necessary to enable the Alignment parameter.
Alternatively, if input data instead began at an odd number memory address—for example, 42425—input data would not begin at a 32-bit boundary. In this case, enabling the Alignment parameter adds a 2 byte buffer to the I/O image, and places the input data object on a 32-bit boundary.
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Channel 1...4 HART Instrument Specific Data Items
The STB AHI 8321 can also add to the multiplexer island process image the z z following data items for each HART channel:
Primary Variable (PV): manufacturer defined
Instrument Status: reports one of the following conditions: z Non-operational Instrument: a detected error rendered the instrument nonz operational
Configuration Changed: an operation occurred that changed the instrument z z configuration
Cold Start: the instrument was reset, or power was cycled off then on
More Status Available: additional instrument information is available via HART command 48 (Read Additional Status Information) z z
Loop Current Fixed: current on the HART channel is being held at a fixed value, and is not responding to process variations
Loop Current Saturated: current on the HART channel has reached its upper or lower limit, and cannot increase or decrease further z z
Non-primary Variable Out of Limits: the value of an instrument variable, other than the Primary Variable (PV), has travelled beyond its operating limits
Primary Variable Out of Limits: the value of the instrument Primary Variable
(PV) has travelled beyond its operating limits z z z z
Secondary Variable (SV): manufacturer defined
Current Value: the actual reading of loop current, from 4...20 mA
Percent Value: the actual reading of loop current, expressed as a percent of the
16 mA range
Update Counter: a counter that is incremented each time the data process image is updated
Check the documentation for your specific HART instrument to determine if it offers the above data items.
Output Data Items
The Output Data area of the I/O Mapping tab of the Module Editor lists output items for the STB AHI 8321 HART interface module. These items can be added to the HART multiplexer island data process image. These items include:
Data Item Data Type Mapped by Default?
Is Default Mapping Editable?
CH-ResetChanged Byte Yes No
CH-Enable Byte No Yes
NOTE: When an output data item in the I/O Mapping tab is: z z
Selected : program logic dynamically controls the item during run-time.
De-selected : the data item is added to the list of configurable data items in the
Properties tab, where you can set a static value to be assigned to the item at start-up.
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CH-ResetChanged
Logic in the PLC application uses the CH-ResetChanged data item to accept a
HART instrument that has been detected to have a Module Status identity of either
Instrument Changed, Minor or Instrument Changed, Major . When PLC logic causes a bit in this register to transition from 0 to 1, the HART instrument detected on that channel is accepted as the current instrument.
The CH-ResetChanged word includes the following bits:
Bit Number Name
0
1
2
3
4...15
CH-1 Reset
CH-2 Reset
CH-3 Reset
CH-4 Reset
—
Description
0 to 1 transition clears changed instrument indicators, and accepts the detected HART instrument on the channel.
(not used)
CH-Enable
The CH-Enable output item reports and controls the state—enabled or disabled— of each of the four channels of the HART interface module. Default value = 15 (dec), indicating the 4 HART channels are enabled
The bits in the CH-Enable word:
1
2
Bit Number Name
0 CH-1 Enable
CH-2 Enable
CH-3 Enable
3
4...15
CH-4 Enable
—
Description z z
0 = disabled
1 = enabled (default)
= 0
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Major and Minor Differences
When the STB AHI 8321 module establishes connection with a HART instrument, it checks whether the present connection is the first connection made on the channel.
If there was a previous connection, the module checks whether the connected instrument matches the previously connected instrument. It does this by comparing the instrument-defining elements in the presently connected instrument with those recorded for the previously connected instrument.
The module gathers data from the HART instrument in the same manner whether the instrument is connected, connected with major differences, or connected with minor differences.
NOTE: z z
To see which instrument-defining element has changed, you can use HART command 0 (Read Unique Identifier) to examine the definition of the presently connected HART field device.
To accept a connected HART field instrument that has either major differences or minor differences, set the value of the CH-ResetChanged parameter to 1 for the appropriate channel.
Major Differences: z z z z z
The following differences in the definition of a HART field instrument are described as major: instrument type: e.g., a NIM (protocol gateway) instead of a sensor instrument manufacturer manufacturer-specific instrument model number instrument firmware revision number the collection of instrument supported Universal and Common Practice HART commands
Minor Differences:
The following differences in the definition of a HART field instrument are described z z as minor: instrument serial number instrument supported HART protocol version: e.g., V. 7 instead of V.5 z instrument electronics components
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Using the STB XMP 4440 Optional Removable Memory Card to Configure the
Island
When to Use a SIM Card z z
You can use a removable memory card in the following scenarios. Each scenario assumes that a removable memory card—with a valid island configuration—is already installed in the NIM.
z z
Initial island bus configuration
Replacement of the current configuration data in Flash memory to: apply custom configuration data to your island temporarily implement an alternative configuration; for example, to replace an island configuration used daily with one used to fulfill a special order z z
Copying configuration data from one NIM to another NIM with the same part number. For example, copying the configuration form a non-operational NIM to its replacement.
Configuring multiple islands with the same configuration data
NOTE: The use of the Advantys configuration software is required when writing configuration data to the removable memory card in the first instance.
Applying Ethernet Address Settings Using a SIM Card
The removable memory card option in the STB NIP 2311 has an additional feature that allows you to store Ethernet network configuration parameters. When properly configured, these parameters are written to flash along with the island parameters on power up. To apply Ethernet addressing parameters:
1.
Use the Advantys configuration software to configure the network communication parameters.
2.
Configure the communication parameters only while the island is offline. The configured settings take effect after a power cycle of the STB NIP 2311.
3.
Select the Enable Editing check box in the Ethernet Parameters tab to enable parameter entries. Verify that this check box remains selected when the configuration is downloaded to the island. If it is de-selected before configuration download to the island, these parameters are not used upon power up.
4.
Set the ONES rotary switch position to STORED to use the configured communication parameters.
NOTE: Using the same memory card to replicate multiple islands with the same stored IP configuration can lead to duplicate IP addresses. In this case, obtain a unique IP address for each island NIM and separately configure the IP address
for each island.
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Configuring the HART Multiplexer
Initial Configuration and Reconfiguration Scenarios
Use the following procedure to set up an island bus with configuration data that was previously saved to a removable memory card. You can use this procedure to configure a new island or to overwrite an existing configuration.
NOTE: The use of this procedure overwrites your existing configuration data.
Step Action Result
1 Install the removable memory card in its drawer in the NIM
.
2 Power up the new island bus. The configuration data on the card is checked. If the data is valid, it is written to the NIM and overwrites the existing configuration. The system restarts automatically, and the island is configured with this data. If the configuration data is invalid, it is not used and the island bus stops.
Configuring Multiple Islands with the Same Data
You can use a removable memory card to make a copy of your configuration data; then use the card to configure multiple island buses. This capability is advantageous in a distributed manufacturing environment or for an OEM (original equipment manufacturer).
NOTE: The islands can be either new or previously configured, provided that: z z the island NIMs are the same type, with the same part number, and the physical island configurations (i.e., the sequence and identity of island modules) are the same
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Applying a Stored Configuration to the HART Multiplexer
Configuring the HART Multiplexer
Using a Removable Memory Card
The STB XMP 4440 removable memory card (SIM card) lets you store, distribute, and reuse custom island bus configurations. If a memory card with a valid configuration is in the NIM on start-up, the configuration on the card overwrites the configuration in Flash memory. In this way, you can use a SIM card to replace the existing configuration in the NIM with the configuration that is stored on the SIM card. This process can be very useful if you need to replace your NIM or you want to quickly replicate island configurations.
The removable memory card is an optional STB feature.
Caring for a SIM Card
SIM card performance can be degraded by dirt or grease on its circuitry.
Contamination of, or damage to, the SIM card can create an invalid configuration.
CAUTION
LOSS OF CONFIGURATION: MEMORY CARD DAMAGE OR
CONTAMINATION z z z
Use care when handling the card.
Inspect for contamination, physical damage, and scratches before installing the card in the NIM drawer.
If the card does get dirty, clean it with a soft dry cloth.
Failure to follow these instructions can result in injury or equipment damage.
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Configuring the HART Multiplexer
Installing the SIM Card
Use the following procedure to install the memory card:
Step
1
Action
Punch out the removable memory card from the plastic card on which it is shipped.
2
3
Confirm that the edges of the card are smooth after you punch it out.
Open the card drawer on the front of the NIM. To more easily work with the SIM card, you can pull the drawer out from the NIM housing.
Align the chamfered edge (the 45
°
corner) of the removable memory card with the one in the mounting slot in the card drawer. Hold the card so that the chamfer is in the upper left corner.
124
4
5
Seat the card in the mounting slot, applying slight pressure to the card until it snaps into place. Verify that the back edge of the card is flush with the back of the drawer.
Close the drawer.
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Removing the Card
Use the following procedure to remove the memory card from the NIM. Avoid touching the circuitry on the card.
Step
1
Action
Open the card drawer.
2 Push the removable memory card out of the drawer through the round opening at the back. Use a soft but firm object like a pencil eraser.
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HART
Wiring the Multiplexer
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8
Overview z z
This chapter presents sample wiring diagrams for the HART multiplexer island, including: providing logic power to the NIM providing sensor and actuator power to: z z power distribution modules auxiliary power supply modules z z z wiring the STB AHI 8321 HART interface module to I/O, which can be: located in remote I/O drops resident in the HART multiplexer island
What Is in This Chapter?
This chapter contains the following sections:
8.1
Section
8.2
Topic
Providing Power to the HART Multiplexer
Wiring the HART Multiplexer to I/O Modules
Page
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8.1
Providing Power to the HART Multiplexer
Wiring External Power Supplies to the HART Multiplexer Island
Logic Power
The STB NIP 2311 NIM provides 5 Vdc logic power to the HART multiplexer island backplane, and can provide 1.2 A of maximum current to island modules. If you place more modules in the primary island segment than the NIM can support, you can add an STB CPS 2111 auxiliary power supply to the island segment.
NOTE: Refer to the list of NIM, BOS and Auxiliary Power Supply Modules
for information describing the logic power capacity of the
STB NIP 2311 NIM. Refer to the list of Analog I/O modules
for the power consumption requirements of island modules.
Input and Output Power
The STB PDT 3100 standard power distribution module (PDM) distributes power separately across the island’s sensor bus to the input modules in its group and along the island’s actuator bus to the output modules in its group. By contrast, the
STB PDT 3105 basic power distribution module distributes a single supply of sensor and actuator power along a single bus.
If you place more modules in the primary island segment than either PDM can supply, you can add additional PDMs to the island. Placing a PDM to the right of a module group terminates the sensor and actuator bus for the preceding (leftward) group and begins a new (rightward) module group.
NOTE: Refer to the list of power distribution modules
for information describing the logic power capacity of the STB PDT 3100 and STB PDT 3105
PDMs.
Providing Logic, Input and Output Power to the First Module Group
The first module in each HART multiplexer island is an STB NIP 2311 NIM, which provides logic power to the following modules. A PDM module is placed in the second position in the HART multiplexer island, and provides input (actuator) and output (sensor) power to the first module group.
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Wiring the Multiplexer
The following graphic shows you how to provide power supply wiring to the
STB NIP 2311 NIM and an STB PDT 3100 standard PDM:
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1 +24 Vdc sensor bus power
2 sensor bus return
3 +24 Vdc actuator bus power
4 actuator bus return
5 +24 Vdc island logic power supply
6 island logic power return
7 External 24 Vdc power supply
8 Wurth 74271633 ferrite bead
NOTE: To maintain CE compliance, use a Wurth 74271633 ferrite bead with NIM,
PDM, BOS, and CPS power supplies. Pass the twisted pair wiring through the ferrite bead twice.
NOTE: This example presumes a single external power supply is adequate to meet the logic, actuator and sensor power requirements of the first module group. If this is not true, you can use separate external power supplies to provide each type of power.
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Wiring the Multiplexer
Providing Logic, Input and Output Power to the Subsequent Module Groups
You begin a new (rightward) module group by inserting an additional PDM module into the island segment. The additional PDM provides input (actuator) and output
(sensor) power to the new module group. You may also need to provide additional logic power to the new module group. In this case, you will add an auxiliary power supply.
The following graphic shows you how to provide power supply wiring to the
STB CPS 2111 auxiliary power supply and an STB PDT 3100 standard PDM:
130
1 +24 Vdc sensor bus power
2 sensor bus return
3 +24 Vdc actuator bus power
4 actuator bus return
5 +24 Vdc island logic power supply
6 island logic power return
7 External 24 Vdc power supply
8 Wurth 74271633 ferrite bead
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NOTE: To maintain CE compliance, use a Wurth 74271633 ferrite bead with NIM,
PDM, BOS, and CPS power supplies. Pass the twisted pair wiring through the ferrite bead twice.
NOTE: This example presumes a single external power supply is adequate to meet the logic, actuator and sensor power requirements of the first module group. If this is not true, you can used separate external power supplies to provide each type of power.
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Wiring the Multiplexer
8.2
Wiring the HART Multiplexer to I/O Modules
Overview
A single Schneider Electric HART multiplexer can support up to 32 current loop channels. The STB AHI 8321 HART interface module is a passive device. If the
HART interface module loses its power, the operations of connected analog I/O and
HART field devices continue without interruption.
z z
The following topics depict HART multiplexers that support the maximum number of channels for I/O modules that are: resident in the HART multiplexer STB island located in a remote M340, Premium, or Quantum drop
NOTE: Current loop wiring to the STB AHI 8321 HART interface module are made using the STB XTS 2150 18-terminal clamp style connector that ships with the module.
Unplugging the I/O wiring connector on the STB AHI 8321 HART interface module breaks the 4-20 mA current loop connecting the analog I/O card to the field devices.
Digital and analog communication on the loop will be lost.
WARNING
LOSS OF COMMUNICATION
Do not remove the I/O wiring connector on the STB AHI 8321 HART interface module while the system is operating under power.
Failure to follow these instructions can result in death, serious injury, or equipment damage.
What Is in This Section?
This section contains the following topics:
Topic
Resistance Calculation for Current Loop Wiring
Setting Analog Output Rise and Fall Times for the STB AHI 8321 Module
STB I/O Wiring Example
Quantum I/O Wiring Example
Premium I/O Wiring Example
M340 I/O Wiring Example
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Resistance Calculation for Current Loop Wiring
Calculating Resistance Requirements
A load resistor may need to be connected in series with either terminal of a HART field instrument. The maximum series resistance in the circuit—including wiring lead resistance—is a function of the voltage supply, and can be calculated using the formula:
R
L
Load resistance expressed in ohms
Vs Voltage supply expressed in Volts
R
S
Total loop resistance in ohms, including resistances of analog cards to which the HART instrument is to be serially connected
The following table displays examples of maximum series resistance at supply voltages, assuming R
S
= 0:
Maximum Series Resistance (R
L
) Supply Voltage
1300 ohms
520 ohms
42.0 Volts
24.0 Volts
417 ohms
250 ohms
0 ohms
21.6 Volts
18.0 Volts
12.0 Volts
NOTE: The wiring diagrams depicted in this chapter include the necessary load resistors for those specific wiring designs. Use the preceding formula when calculating load resistance for wiring designs that differ from the wiring diagrams depicted in this chapter.
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Setting Analog Output Rise and Fall Times for the STB AHI 8321 Module
Adjusting Output Module Rise and Fall Times
Many analog output modules can exceed the maximum rise and fall time—known as “slope”—that is recommended by the HART Foundation for current signals. A faster than recommended slope can cause variations in the HART signal. To help avoid this occurrence, configure the application that drives analog current outputs so that maximum output rise and fall time does not exceed:
0.8ma/msec or
(0.04 * Full Scale Value)/msec
However, because the PLC, network interface module and analog I/O modules are updated only once every scan period, Schneider Electric recommends that analog current outputs be incremented or decremented 4% of full scale value every scan period until the desired current value is attained.
For example, in the case of an STB island with a scan period is 40 msec: for an output module (for example, the STB ACO 0220), the rise or fall slope should equal
4% of full scale value every 40 msec.
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The following chart describes the relation between current and slope times for 4-20 mA current output modules:
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Wiring the Multiplexer
STB I/O Wiring Example
HART Multiplexer with Resident I/O z z
The STB input and output modules that you connect to the HART multiplexer can be located in: the HART multiplexer island an STB island that is separate from the HART multiplexer island
The specific placement of your input and output modules is determined by your specific application.
The following diagram provides an example of a HART multiplexer island that supports the maximum number of 32 analog channels—in this example, 28 input channels and 4 output channels. The input and output modules are resident in the
HART multiplexer island. This HART multiplexer is assembled using the following
STB equipment: z Modules: z z z z z z
STB NIP 2311 network interface module (1)
STB PDT 3100 power distribution modules (5)
STB ACI 8220 4-channel analog input modules (7)
STB ACO 0220 2-channel analog output modules (2)
STB AHI 8321 HART interface modules (8)
STB CPS 2111 Auxiliary Power Supplies (4) z z z z z
Bases:
STB XBA 2200 base (5)—for power distribution modules
STB XBA 2100 bases (4)—for auxiliary power supplies
STB XBA 2000 Type 2 bases (9)—for analog I/O modules
STB XBA 3000 Type 3 bases (8)—for HART interface modules
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A HART multiplexer with STB I/O:
Wiring the Multiplexer
1 PC running asset management software
2 Ethernet switch
3 Fieldbus master (PLC)
4 HART multiplexer with resident I/O and HART interface modules
5 4-20 mA current loop wiring from I/O to HART instruments z z z z
When connecting the island modules to current loop wiring: use wire sizes in the range 0.20...0.82 mm
2
(24...18 AWG) strip at least 9 mm (0.35 in) from the wire’s jacket for the module connection use shielded twisted-pair cable tie the twisted-pair cable shield to an external clamp that is tied to functional ground (FE)
NOTE: Refer to the following examples, for detailed wiring diagrams of inputs and outputs.
Wiring the STB ACI 8320 Input Module to the HART Interface Module z z
In this specific example: z Current loop wiring connections are made directly from the HART compliant z instruments to pins on the input module.
Parallel wiring connections are made from the input module to the STB AHI 8321 for each HART channel.
Each input module provides an internal 250
Ω
resistor to the current loop.
Each HART interface module provides an internal 260
Ω
resistor to the current loop.
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Wiring the Multiplexer z Schneider Electric recommends that each current loop utilize a loop power supply
.
NOTE: For other I/O modules and configurations, you need to calculate your specific resistance requirements
.
138
1 HART instrument
2 External 24 Vdc power supply
The STB ACI 8320 input module uses two six-terminal field wiring connectors. You can use either: z two STB XTS 1100 screw type field wiring connectors z two STB XTS 2100 spring clamp field wiring connectors
Each field wiring connector has six connection terminals, with a 3.8 mm (0.15 in) pitch between each pin.Individual connector terminals accept one field wire. Use shielded twisted pair wire sizes in the range 0.20...0.82 mm
2
(24...18 AWG).
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Wiring the STB ACO 0220 Output Module to the HART Interface Module, Using Internal Power
The following diagram shows you how to wire the STB ACO 0220 output module to the STB AHI 8321 HART interface module for use as either a current source or a current sink.
z Current loop wiring connections are made from the HART compliant instruments, through the HART interface module, to pins on the output module. This design employs the 260
Ω
HART filter in the STB AHI 8321HART interface module.
Jumper connections are made on the STB ACO 0220 output module to apply z z
24 Vdc internal power to the current loop.
An external 220
Ω
resistor is applied to each current loop.
NOTE: It may be necessary to adjust the rise and fall times
of analog output modules to facilitate HART communication.
NOTE: For other I/O modules and configurations, you need to calculate your specific resistance requirements
.
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1 HART instrument
139
Wiring the Multiplexer
The STB ACO 0220 output module uses two six-terminal field wiring connectors. z z
You can use either: two STB XTS 1100 screw type field wiring connectors two STB XTS 2100 spring clamp field wiring connectors
Each field wiring connector has six connection terminals, with a 3.8 mm (0.15 in) pitch between each pin.Individual connector terminals accept one field wire. Use shielded twisted pair wire sizes in the range 0.20...0.82 mm
2
(24...18 AWG).
140
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Quantum I/O Wiring Example
HART Multiplexer and Remote Quantum I/O Drop
The following graphic depicts an overview of a HART multiplexer that supports the maximum number of 32 analog channels—28 input channels and 4 output channels.
The input and output modules are located in a Quantum PLC drop.
This HART multiplexer is assembled using the following STB equipment: z z z z z
Modules:
STB NIP 2311 network interface module (1)
STB AHI 8321 HART interface modules (8)
STB PDT 3100 power distribution modules (3)
STB CPS 2111 auxiliary power supplies (2) z z z z
Bases:
STB XBA 2100 bases (2)—for auxiliary power supplies
STB XBA 2200 bases (3)—for power distribution modules
STB XBA 3000 type 3 bases (8)—for HART interface modules z z z z
The Quantum PLC includes the following modules:
140 CPS 124 20 power supply (1)
140 CPU 651 50 central processing unit (1)
140 ACI 030 00 8-channel input modules (4)
140 ACO 020 00 4-channel output module (1)
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Wiring the Multiplexer
A HART multiplexer with Quantum I/O:
142
1 PC running asset management software
2 Ethernet switch
3 Quantum PLC with analog I/O
4 4-20 mA current loop wiring, connecting analog I/O and HART multiplexer
5 HART multiplexer
6 4-20 mA current loop wiring, connecting HART multiplexer to HART instruments
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Wiring the Multiplexer z z z z
When connecting the island modules to current loop wiring: use wire sizes in the range 0.20...0.82 mm
2
(24...18 AWG) strip at least 9 mm (0.35 in) from the wire’s jacket for the module connection use shielded twisted-pair cable tie the twisted-pair cable shield to an external clamp that is tied to functional ground (FE)
NOTE: Refer to the following examples, for detailed wiring diagrams of inputs and outputs.
Wiring the 140 ACI 030 00 Quantum Input Module to the HART Interface Module
In the following diagram: z z
Current loop wiring is made through the STB AHI 8321 HART interface module thereby employing its 260
Ω
internal HART filter.
Schneider Electric recommends that each current loop utilize a loop power supply z
.
Each input module provides an internal 250
Ω
resistor to the current loop.
NOTE: For other I/O modules and configurations, you need to calculate your specific resistance requirements
.
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Wiring the Multiplexer
1 HART instrument
2 External 24 Vdc power supply
Wiring the 140 ACO 020 00 Quantum Output Module to the HART Interface Module
The following diagram shows you how to wire the 140 ACO 020 00 output module to the STB AHI 8321 HART interface module for use as either a current source or a current sink. z z
Current loop wiring is made through the STB AHI 8321 HART interface module thereby employing its 260
Ω
internal HART filter.
Schneider Electric recommends that each current loop utilize a loop power supply
.
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NOTE: For other I/O modules and configurations, you need to calculate your specific resistance requirements
.
NOTE: It may be necessary to adjust the rise and fall times
of analog output modules to facilitate HART communication.
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1 HART instrument
2 External 24 Vdc power supply
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Wiring the Multiplexer
Premium I/O Wiring Example
HART Multiplexer and Remote Premium I/O Drop
The following graphic depicts an overview of a HART multiplexer that supports the maximum number of 32 analog channels—28 input channels and 4 output channels.
The input and output modules are located in a Premium PLC drop.
This HART multiplexer is assembled using the following STB equipment: z z z z z
Modules:
STB NIP 2311 network interface module (1)
STB AHI 8321 HART interface modules (8)
STB PDT 3100 power distribution modules (3)
STB CPS 2111 auxiliary power supplies (2) z z z z
Bases:
STB XBA 2100 bases (2)—for auxiliary power supplies
STB XBB 2200 bases (3)—for power distribution modules
STB XBA 3000 type 3 bases (8)—for HART interface modules z z z z
The Premium PLC includes the following modules:
TSX PSY 2600M power supply (1)
TSX P57 5634M central processing unit (1)
TSX AEY 810 8-channel input modules (4)
TSX ASY 410 ASY 4-channel output module (1)
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A HART multiplexer with Premium I/O:
Wiring the Multiplexer
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1 PC running asset management software
2 Ethernet switch
3 Premium PLC with analog I/O
4 4-20 mA current loop wiring, connecting analog I/O and HART multiplexer
5 HART multiplexer
6 4-20 mA current loop wiring, connecting HART multiplexer to HART instruments
147
Wiring the Multiplexer z z z z
When connecting the island modules to current loop wiring: use wire sizes in the range 0.20...0.82 mm
2
(24...18 AWG) strip at least 9 mm (0.35 in) from the wire’s jacket for the module connection use shielded twisted-pair cable tie the cable shield to an external clamp tied to functional ground (FE)
NOTE: Refer to the following examples, for detailed wiring diagrams of inputs and outputs.
Wiring the TSX AEY 810 Premium Input Module to the HART Interface Module
In the following example: z Because the TSX AEY 810 output module has no pin connectors, this example z employs the ABE7CPA31E Telefast connector module.
This design uses the 260
Ω
internal HART filter of the STB AHI 8321 HART interface module. z Wiring connections are made from the HART compliant instruments, through the
STB AHI 8321 HART interface module, to pins on the ABE7CPA31E Telefast connector module.
z z
24V power is supplied through to each channel through the ABE7CPA31E
Telefast connector module.
The TSX AEY 810 input module provides a 250
Ω
resister to the current loop.
NOTE: For other I/O modules and configurations, you need to calculate your specific resistance requirements
.
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1 HART instrument
2 External 24 Vdc power supply
Wiring the TSX ASY 410 Premium Output Module to the HART Interface Module
The following diagram shows you how to wire the TSX ASY 410 output module to the STB AHI 8321 HART interface module.
z Current loop wiring is made through the 260
Ω
internal HART filter of the z
STB AHI 8321 HART interface module.
Wiring connections are made from the HART compliant instruments, through the
STB AHI 8321 HART interface module, to pins on the TSX ASY 410 output module.
z z
Schneider Electric recommends that each current loop utilize a loop power supply.
Each current loop employs a 220
Ω
resistor placed between the output module and HART interface module.
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Wiring the Multiplexer
NOTE: It may be necessary to adjust the rise and fall times
of analog output modules to facilitate HART communication.
NOTE: For other I/O modules and configurations, you need to calculate your specific resistance requirements
.
150
1 HART instrument
2 External 24 Vdc power supply
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M340 I/O Wiring Example
HART Multiplexer and Remote M340 I/O Drop
The following graphic depicts an overview of a HART multiplexer that supports the maximum number of 32 analog channels—28 input channels and 4 output channels.
The input and output modules are located in an M340 PLC drop.
This HART multiplexer is assembled using the following STB equipment: z z z z z
Modules:
STB NIP 2311 network interface module (1)
STB AHI 8321 HART interface modules (8)
STB PDT 3100 power distribution modules (3)
STB CPS 2111 auxiliary power supplies (2) z z z z
Bases:
STB XBA 2100 bases (2)—for auxiliary power supplies
STB XBA 2200 bases (3)—for power distribution modules
STB XBA 3000 type 3 bases (8)—for HART interface modules z z z z
The M340 PLC includes the following modules:
BMX CPS 3500 power supply (1)
BMX P34 20302 central processing unit (1)
BMX AMI 0310 4-channel input modules (7)
BMX AMO 0210 ASY 4-channel output module (2)
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Wiring the Multiplexer
A HART multiplexer with M340 I/O:
152
1 PC running asset management software
2 Ethernet switch
3 M340 PLC with analog I/O
4 4-20 mA current loop wiring, connecting analog I/O and HART multiplexer
5 HART multiplexer
6 4-20 mA current loop wiring, connecting HART multiplexer to HART instruments
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Wiring the Multiplexer z z z z
When connecting the island modules to current loop wiring: use wire sizes in the range 0.20...0.82 mm
2
(24...18 AWG) strip at least 9 mm (0.35 in) from the wire’s jacket for the module connection use shielded twisted-pair cable tie the twisted-pair cable shield to an external clamp that is tied to functional ground (FE)
NOTE: Refer to the following examples, for detailed wiring diagrams of inputs and outputs.
Wiring the BMX AMI 0410 M340 Input Module to the HART Interface Module
In the following diagram: z Current loop wiring is made through the internal 260
Ω
HART filter of the
STB AHI 8321 HART interface module.
z Schneider Electric recommends that each current loop utilize a loop power supply
.
NOTE: For other I/O modules and configurations, you need to calculate your specific resistance requirements
.
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1 HART instrument
2 External 24 Vdc power supply
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Wiring the Multiplexer
Wiring the BMX AMO 0210 M340 Output Module to the HART Interface Module
The following diagram shows you how to wire the BMX AMO 0210 output module to the STB AHI 8321 HART interface module. z Current loop wiring is made through the internal 260
Ω
HART filter of the
STB AHI 8321 HART interface module.
z The BMX AMO 0210 output module supplies 24 Vdc internal power to each z current loop, so an external power supply is not required.
Each output module provides an internal 250
Ω
resistor to the current loop.
NOTE: It may be necessary to adjust the rise and fall times
of analog output modules to facilitate HART communication.
NOTE: For other I/O modules and configurations, you need to calculate your specific resistance requirements
.
1 HART instrument
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9
Introduction to HART
A HART multiplexer can centralize the management of HART field instruments.
From a PC with device management software, you can manage HART instruments z z that are connected to the multiplexer:
Configure field instruments.
Diagnose field instruments.
z Save field instrument configurations on your PC. (You can later download a z configuration to a replacement field instrument.)
Track changes made to field instruments.
What Is in This Chapter?
This chapter contains the following sections:
9.1
Section
9.2
Topic
Configuring HART Devices
AMS Device Management Software Example
Page
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9.1
Configuring HART Devices
What Is in This Section?
This section contains the following topics:
Topic
Using the DTM
User Interface Configuration for the HART STB Multiplexer DTM
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Using the DTM
Introduction
Follow these instructions to add the DTM for the HART STB Multiplexer to your application. The instructions apply to these software platforms: z Unity Pro : Unity Pro is high-performance PC-based multitask software for
Modicon M340, Premium, and Quantum platforms from Schneider Electric.
z z
Endress+Hauser FieldCare : FieldCare is PC-based Asset Management
Software.
PACTware : PACTware (Process Automation Configuration Tool software) runs on a PC and communicates with field instruments through DTMs. PACTware is a free download that is device- and fieldbus-independent.
NOTE: The Schneider Electric HART DTMs are supported by STB NIP 2311 firmware version 4.01 or greater.
Download the DTMs
Download the Schneider Electric HART DTMs:
Step Action
1 Go to the global Schneider Electric web site (www.schneider-electric.com).
2 Locate the DTM files ( Support
→
Documents & Downloads
→
Software/Firmware
→
DTM files ).
3 Download the Schneider Electric HART DTMs to your PC.
4 Unzip the downloaded files.
5 Double-click the executable file (.exe).
6 Follow the on-screen instructions to download the DTMs.
NOTE: A single installation file contains both the STB HART Multiplexer DTM and the Schneider Electric Generic HART Device DTM.
Initial Installation of DTMs and Device Catalog Update
If your software platform ( Unity Pro , Endress+Hauser FieldCare , or PACTware ) automatically detects the new DTM, follow the on-screen instructions to install the
DTM and update your device catalog. Otherwise, use these steps the first time you install and update the DTMs:
Unity Pro:
1
2
Open Unity Pro.
In the DTM Browser , right-click Host PC
→
DTM Hardware Catalog .
3 In the Hardware Catalog , press Update . (Unity Pro scans your PC and automatically imports all newly installed DTMs.)
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4
5
Endress+Hauser FieldCare:
1
2
3
Open Endress+Hauser FieldCare.
From the menu, select
Press the Update
DTM Catalog
button. ( NOTE:
→
Update
Wait for the
.
Update progress window to run. The new DTMs appear under Device Types not part of DTM Catalog .)
Select (left-click) the DTMs in Device Types not part of DTM Catalog .
Press the
Catalog .
Move >> button to move the selected DTMs into Device Types in DTM
2
3
6 Press OK to close and update the DTM Catalog window.
PACTware:
1 Open PACTware (or open an existing PACTware project).
From the menu, select View
→
Device Catalog .
Press Update device catalog .
4 When the prompt for a new PACTware device catalog appears, say Yes . (PACTware scans and automatically imports all newly installed DTMs.)
Add the DTM to Your Program
Follow these steps to add the DTM (with your preferred software platform):
1
2
3
4
1
2
3
Unity Pro:
Open Unity Pro.
In the DTM Browser , right-click Host PC
→
Add .
Select (left-click) HART STB Multiplexer in the Devices column.
4
5
Click Add DTM
In the
.
Properties of Devices
Endress+Hauser FieldCare:
dialog, press OK .
1
2
3
Open Endress+Hauser FieldCare.
Double-click Create Project (or open an existing project).
Right-click Host PC
→
Add Device .
4
5
Select (left-click)
Press
PACTware:
OK .
HART STB Multiplexer in the Devices column.
Open PACTware (or open an existing PACTware project).
Right-click Host PC
→
Add Device .
Select (left-click) HART STB Multiplexer in the Devices column.
Press OK .
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Access DTM Parameters
Use these commands to access the DTM parameters (with your preferred software platform):
Software
Unity Pro
Endress+Hauser FieldCare
PACTware
Right-Click ...
HART_STB_Multiplexer
→
Device
→
Configuration
HART_STB_Multiplexer
→
Configuration
HART_STB_Multiplexer
→
Parameter
→
Configuration
For each software platform, the same DTM configuration parameters screen appears:
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Configure DTM Parameters and Connect
Follow these steps to configure the parameters and connect the DTM:
2
3
Step Action
1 Configure these parameters: z z z z
IP Address:
Node Id:
Enter the IP address of the STB NIP 2311 NIM on the STB island.
The Node Id (0...31) corresponds to the HART multiplexer.
Comm retry count: This value represents the number of times that the HART interface module resends a command after it does not communicate with a HART instrument.
Busy retry count: instrument.
This value represents the number of times that the HART interface module resends a command after receiving a busy reply from a HART
Press Apply to apply all changes.
Right-click HART_STB_Multiplexer
→
Connect to connect the software platform to the DTM.
Find All HART Devices
Use your software to find HART field devices:
Software
Unity Pro
Endress+Hauser FieldCare
PACTware
Right-Click ...
HART_STB_Multiplexer
→
Fieldbus Discovery
HART_STB_Multiplexer
→
Create Network
HART_STB_Multiplexer
→
Topology Scan
NOTE: z z z z z
To search for HART field devices to add to your project, refer to the Unity Pro,
Endress+Hauser FieldCare, and PACTware software documentation.
Schneider Electric provides a generic DTM for HART field devices. Use the generic DTM when a HART field device does not have a device-specific DTM from the manufacturer. (The generic DTM contains online help.)
Initially, the Schneider Electric generic HART DTM is “Unregistered Trial (0) day”
(with limited functionality). A few moments after being instantiated, it changes to
“Registered Professional.” The DTM is then fully functional and ready to use.
Schneider Electric recommends that only 4 device DTM windows are active at any given time.
Refer to www.schneider-electric.com for known resolutions concerning devicespecific DTMs.
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User Interface Configuration for the HART STB Multiplexer DTM
Introduction
To access the communication parameters for the user interface (UI) of the HART
STB Multiplexer, right-click the DTM icon in the network view of your FDT (Field
Device Tool) frame application and click Configuration :
This table describes the components of the window:
Parameter IP Address
Node Id
Enter the IP address of the STB NIP 2311 NIM on the STB island.
Enter the node ID (0 ... 31) that corresponds to the HART multiplexer. (The default value is 0.)
Comm retry count Enter a value that represents the number of times that the HART interface module resends a command after it does not communicate with a HART instrument. (The default value is 2.)
Busy retry count Enter a value that represents the number of times that the HART interface module resends a command after receiving a busy reply from a HART instrument. (The default value is 2.)
Button OK
Cancel
Apply
Save all parameters and close the Configuration window.
Cancel the modification of all parameters and close the configuration window.
(The original values are applied at the next connection.)
Save the parameters. (The configuration window remains open. New parameter values are applied at the next connection.)
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Offline (DTM) Parameters
The offline parameter UI of the HART STB Multiplexer DTM contains the parameters that are used in the DTM dataset. To view the offline parameters, right-click the DTM icon in the network view of your FDT frame application and click Offline
Parameter :
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This table describes the read/write parameters for the Offline Parameter window:
Parameter Tag This field contains the HART tag name for the HART STB Multiplexer. It is used as the
FDT tag name in the DTM.
NOTE: The HART tag has an 8-character limit. However, some FDT frames allow tag names that exceed 8 characters. If there are more than 8 characters in the FDT frame, the HART STB Multiplexer DTM truncates all characters after the eighth character.
Descriptor This field contains the HART Descriptor (16-character maximum) for the HART STB
Multiplexer.
Date This field contains the HART date field for the HART STB Multiplexer.
Button
Long Tag
Message
Gender
OK
This field contains the Long Tag name (16-character maximum) for the HART STB
Multiplexer.
This field contains the HART message (32-character maximum) for the HART STB
Multiplexer.
The HART protocol provides for up to 2 masters (primary and secondary). This allows secondary masters such as handheld communicators to be used without interfering with communications to or from the primary master.
Save all parameters and close the configuration window.
Cancel
Apply
Cancel the modification of all parameters and close the configuration window. (The original values are applied at the next connection.)
Save the parameters. (The configuration window remains open. New parameter values are applied at the next connection.)
Online (Device) Parameters
The online parameter UI of the HART STB Multiplexer DTM contains the parameters that are set in the online dataset. To view the device parameters, right-click the DTM icon in the network view of your FDT frame application and click Online
Parameter :
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This table describes the parameters on the Online Parameter window:
Parameter Tag This field contains the HART tag name for the HART STB Multiplexer. It is used as the
FDT tag name in the DTM.
NOTE: The HART tag has an 8-character limit. However, some FDT frames allow tag names that exceed 8 characters. If there are more than 8 characters in the FDT frame, the HART STB Multiplexer DTM truncates all characters after the eighth character.
Descriptor This field contains the HART Descriptor (16-character maximum) for the HART STB
Multiplexer.
Date This field contains the HART date field for the HART STB Multiplexer.
Long Tag
Message
Gender
This field contains the Long Tag name (16-character maximum) for the HART STB
Multiplexer.
This field contains the HART message (32-character maximum) for the HART STB
Multiplexer.
The HART protocol provides for up to 2 masters (primary and secondary). This allows secondary masters such as handheld communicators to be used without interfering with communications to or from the primary master.
Button
Equality
Indication
OK
Cancel
Save all parameters and close the configuration window.
Cancel the modification of all parameters and close the configuration window. (The original values are applied at the next connection.)
Apply Save the parameters. (The configuration window remains open. New parameter values are applied at the next connection.)
Refresh Upload all parameters from the device and display them in the window.
These symbols apply to values in the window: green yellow equal: The online (device) value is equal to the offline (DTM) value.
not equal: The online (device) value is not equal to the offline (DTM) value.
Diagnostics Configuration z z z
The diagnostics UI of the HART STB Multiplexer DTM contains status information about the HART STB Multiplexer device. The diagnostics configuration screen contains these tabs:
Multiplexer Status
Instrument Status
HART Communication Status
To access the diagnosis UI, right-click the DTM icon in the network view of your FDT frame application and click Diagnosis .
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The Multiplexer Status shows the status of the HART STB Multiplexer:
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Parameters
HART Device Management Software
This table describes the read-only parameters on the Multiplexer Status tab:
Max Delayed
Responses/Primary
These fields display the number of supported messages that can simultaneously wait for data from HART instruments.
Max Delayed
Responses/Secondary
Number Delayed
Responses/Primary
These fields display the number of messages that are waiting data from the HART instruments.
Number Delayed
Responses/Secondary
Signaling This field displays the algorithm that is used for sending signals between a master and a device.
Max Instruments Connected This field displays the maximum number of instruments that can be connected to the HART STB Multiplexer.
Max Instruments Stored This field displays the maximum number of instruments that can be stored in the HART STB Multiplexer.
Instruments on Instrument
List
This field displays the number of stored instruments in the instrument list.
Instruments on Scan List This field displays the number of stored instruments in the scan list.
Gender The HART protocol provides for up to 2 masters ( Primary or
Secondary ). This allows secondary masters such as handheld communicators to be used without interfering with communications to or from the primary master.
Search Algorithm
Scan Command
This field displays the algorithm that the HART STB
Multiplexer uses to search for an instrument in the loop.
This field displays the command the HART STB Multiplexer uses to cache data from instruments on the scan list.
Scan Mode
Busy retry count
Comm retry count
This field displays the scanner status ( Enable or Disable ).
This is the number of busy retries.
This is the number of communication retries.
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Status
Button
Device Malfunction
Configuration Changed
This indicator is not used by the HART STB Multiplexer.
ON: The configuration of the HART STB Multiplexer has been changed.
Cold Start
More Status Available
ON: The HART STB Multiplexer has been reset.
NOTE: It is only set for the first command after the reset.
ON: You can get additional status information through command 49.
NOTE: The bit is cleared when command 48 is read.
This indicator is not used by the HART STB Multiplexer.
Loop Current Fixed
Loop Current Saturated
Non-Primary Variable Out of Limits
This indicator is not used by the HART STB Multiplexer.
This indicator is not used by the HART STB Multiplexer.
Primary Variable Out of
Limits
This indicator is not used by the HART STB Multiplexer.
Close Close the window.
The Instrument Status tab displays the HART instruments that are connected to the HART STB Multiplexer:
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This table describes the read-only parameters on the Instrument Status tab:
Parameter Channel This field contains the number of instruments stored in the instrument list.
NOTE: This number may not match the actual channel that an instrument is connected to if the instrument was move from one channel to another.
Manufacturer This field contains the name of the instrument manufacturer.
Device Type Id This field contains the unique device type that is defined by the manufacturer.
Button
Communication
Status
Device Status
Tries
Fails
Reset
Close
This field contains the number of communication errors that were detected since the last reset.
This field displays the set device status information that is stored in the HART
STB Multiplexer.
This field contains the total number of messages sent by the HART STB
Multiplexer to the instruments.
This field contains the total number of messages that included detected communication errors.
Set all values in the Tries and Fails columns to 0.
Close the window.
The Host Communication Status tab displays the status of the host:
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This table describes the read only parameters on the Host Communication
Status window:
Parameter Description
Number of commands This field contains the total number of messages received by the multiplexer from a client.
Number of replies
Number of burst replies
This field contains the total number of replies sent by the multiplexer back to the client.
This value is always 0. (The HART STB Multiplexer does not support burst replies.)
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AMS Device Management Software Example
Overview
This section explains the use of Emerson Process Management’s AMS Device
Manager, Version 10.5
software (including its Network Configuration tool).
It also includes an introduction to Eltima Software’s Serial to Ethernet Connector,
Version 5.0
, which allows device management software programs (Unity Pro,
FieldCare, PACTware) to communicate over Ethernet.
NOTE: The following example describes third-party software. Refer to the manufacturer’s product documentation for detailed operating instructions.
What Is in This Section?
This section contains the following topics:
Topic
Eltima Software Serial to Ethernet Connector Setup
Add the Schneider Electric Multiplexer to the AMS Device List
Creating a HART Multiplexer Network
Managing HART Network Devices
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Eltima Software Serial to Ethernet Connector Setup
Converting an Ethernet Port to a Virtual Serial Port
The Schneider Electric HART multiplexer communicates via Ethernet connections.
Device management software typically communicates via serial connections. This topic introduces the Serial to Ethernet Connector software application from Eltima
Software. You can use this software to enable communication between device management software and the Schneider Electric HART multiplexer.
NOTE: The following example describes third-party software. Refer to the manufacturer’s product documentation for detailed operating instructions.
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Eltima Software Setup
To configure the Eltima Software Serial to Ethernet Connector program, follow these steps:
2
3
Step Action
1 Install the Eltima Software installation instructions.
Serial to Ethernet Connector program on your PC by following the manufacturer’s
Start up the Serial to Ethernet Connector program.
Click on the Create connection tab to display the following page:
4 In the Create connection page (above), enter the following connection settings:
Setting Description
Connection type
Port type
Virtual serial port
Select Connect serial port to remote host (Client)
Select an unused serial port—in this case, COM6 .
.
Remote IP/ Host name
Select Create as virtual serial port .
NOTE: This setting may be pre-selected and read-only.
Type in the IP address of the HART multiplexer network interface module—in this case, 192.168.1.6
.
Socket number Type in the socket number, 5001 .
NOTE: The HART server uses socket number 5001.
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Step Action
5
6
Click Add to add the new connection to the connection list.
Repeat steps 4 and 5 for each additional connection you wish to add to the list.
NOTE: Each HART multiplexer on your network requires a separate COM port. In this example, with only one multiplexer, no additional connections are required.
7 When all connections have been added, click Create connection .
The new connections are created, and the page looks like this:
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Step Action
8 After the serial port is also configured in the HART OPC server, you can use this screen to observe the communication between the PC and the multiplexer. This screen will display the connected state, and the number of bytes sent and received over the connection:
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Add the Schneider Electric Multiplexer to the AMS Device List
Introduction
This topic shows you how to add a Schneider Electric HART multiplexer device definition file (DD) to the AMS device list. After the Schneider Electric HART multiplexer DD is added, the AMS software will recognize the Schneider Electric
HART multiplexer when it rebuilds the hierarchy of your HART network.
The Schneider Electric HART multiplexer DD file ships with your STB AHI 8321
HART multiplexer module installation CD, and is named: 0101.fm6
.
Adding the Schneider Electric DD File
Use the Add Device Type AMS software tool to perform this task. The Add Device
Type tool is installed on your PC as part of the AMS Device Manager Suite . Follow these steps:
Step
1
2
Action
Copy the Schneider Electric HART Multiplexer DD file ( 0101.fm6
) from your
STB AHI 8321 installation disk to a location on your PC’s hard drive.
Startup the Add Device Type tool by selecting Start
→
AMS Device Manager
→
Add Device Type . The following message displays:
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Step
3
Action
Click OK . The following navigation dialog opens:
4 Click Browse...
to open the following navigation dialog:
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5 Click in the Directories area of this dialog to navigate to and select the folder that contains the Schneider Electric HART multiplexer DD file. In this case, that path is
C:\AMS\006058\e1b1.
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Step
6
Action
Click OK to close the Select Source Directory dialog. The selected directory appears as the Source Directory :
7
8
Click OK to close the Add Device Type dialog.
The following dialog may open:
178
If this dialog opens, enter the following information: z z
: Schneider Electric
Device’s name: HRM V1.0
Click OK to close the dialog.
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Step
9
Action
The following message appears, indicating the Schneider Electric HART multiplexer DD file is saved to the AMS device list:
Click OK to close the message.
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Creating a HART Multiplexer Network
Introduction
The first task to perform when working with Emerson Process Management’s AMS
Device Manager, Version 10.5
software is to create a new HART multiplexer network. To do this, use the Network Configuration tool that installs on your PC as part of the AMS Device Manager Suite .
Creating a New HART Network
Follow these steps to create a new HART multiplexer network:
Step Action
1
2
Install the AMS Device Manager, Version 10.5
manufacturer’s installation instructions.
software, following the
Startup the Network Configuration tool, by selecting Start
→
AMS Device Manager
→
Network Configuration . The Network Configuration dialog opens:
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Step Action
3 Click Add . The Select Network Component Type dialog opens:
4 Select Multiplexer Network , then click Install...
. The following dialog opens for starting the new network wizard:
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Step Action
5 Click Next . The following dialog opens for naming the new network:
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Step Action
6 For the purpose of this example, accept the default network name
Multiplexer Network 1 , then click Next> . The following dialog opens:
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Step Action
7 In the Connection dialog, define the COM port connection the new multiplexer network will use. Enter the following settings: z z z z z z z
COM Port : Select COM 6. This is the same COM port that was previously configured using the Eltima software
.
Baud Rate : Select 9600.
Network Timeout : Accept the default value of 1000.
Communication Retries
HART Busy retries
RS485 addresses
: Select 2.
: Select 5.
: Select from 0 to 1.
Multiplexer HART Master Mode : Select Primary master.
Click Next> . The Connection dialog closes, and the Network Configuration dialog displays the new network:
184
8 Click Close to close the Network Configuration tool.
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Managing HART Network Devices
Introduction
The next task is to open the AMS Device Manager tool, confirm that it includes the
Schneider Electric HART multiplexer in its device list, then automatically discover the HART instruments connected to the Schneider Electric HART multiplexer. The
AMS Device Manager tool installed on your PC when as part of the AMS Device
Manager Suite .
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Discovering the New Network
To view the HART instruments connected to the new network, follow these steps:
Step
1
Action
Startup the AMS Device Manager by selecting Start
→
AMS Device Manager
→
AMS Device Manager . The following Login dialog opens:
2
3
Type in your Username/Password combination.
NOTE: You created the Username/Password combination when you installed the
AMS Device Manager on your PC.
Click OK . The AMS Device Manager opens:
186
4 Click on the Device List node (above) to confirm there is a folder for Schneider
Electric. This confirms the Schneider Electric HART multiplexer DD has been added to the AMS device list.
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Step
5
Action
Open the Physical Networks node to display the new network
Multiplexer Network 1 , then click the right mouse button to display the following menu:
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6 Select Rebuild Hierarchy (above). The AMS Device Manager software searches for HART devices connected to the network. The software adds a new node to the physical network tree when it discovers the Schneider Electric HART multiplexer:
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Step
7
8
Action
Select the new HART multiplexer node in the left pane to display a list of connected
HART field instrument in the right pane.
You can right click on an item listed in the right pane to display a menu, which you can use to open monitoring, configuration, and diagnostic windows relating to that device.
NOTE: Consult the documentation provided by the vendor of the device management software and the HART field instruments for instructions on how to work use the software in conjunction with the HART instruments.
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Glossary
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A
analog input
A module that contains circuits that convert analog input signals to digital values that can be manipulated by the processor. By implication, these analog inputs are usually direct. That means a data table value directly reflects the analog signal value.
analog output
A module that contains circuits that transmit an analog signal proportional to a digital value input to the module from the processor. By implication, these analog outputs are usually direct. That means a data table value directly controls the analog signal value.
asset management software
A software application that can configure, monitor, and manage devices employed as part of an industrial automation system. asynchronous
Communication mode typified by the absence of a global, fixed-rate clock signal.
Instead, asynchronous communication control is spread among multiple devices, that communicate and synchronize over shared channels. auto addressing
The automatic assignment of an address to each island bus I/O module.
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Glossary auto configuration
The ability of island modules to operate with predefined default parameters. A configuration of the island bus based completely on the actual assembly of I/O modules.
B
basic I/O
Low-cost STB input/output modules that use a fixed set of operating parameters. A basic I/O module cannot be re-configured with the Advantys configuration software, and cannot be used in reflex actions.
basic NIM
A low-cost STB network interface module that supports up to 12 STB I/O modules.
A basic NIM does not support the Advantys configuration software, reflex actions, nor the use of an HMI panel.
basic PDM
Bell 202 FSK standard
A standard defining the operation of frequency shift keying: a frequency modulation scheme that transmits digital information by means of discrete frequency changes in a carrier wave.
BootP
A low-cost STB PDM that distributes sensor power and actuator power over a single field power bus on the island. The bus provides a maximum of 4 A total power. A basic PDM requires a 5 A fuse to help protect the I/O.
Bootstrap Protocol : A UDP/IP protocol that allows an internet node to obtain its IP parameters based on its MAC address.
BOS
Beginning of Segment : An STB XBE 1300 BOS module is installed in the first position in an extension segment, when the STB island consists of more than one segment. Its job is to carry island bus communications to—and provide logic power for—the modules in the extension segment.
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C
configuration
The arrangement and interconnection of hardware components within a system, and the hardware and software settings that determine the operating characteristics of the system.
current loop
An analog electrical signaling scheme, that allows a device to be monitored or controlled over a pair of conductors. Only one current level can exist in a current loop at any point in time. A digital signal can be added to the analog current loop using the HART protocol, enabling additional communication with the analog device.
D
DDL
Device Description Language file : A definitional template for a HART field instrument, that describes its configurable parameters, the data that it can produce, and its operating procedures, including menus, commands and display formats.
device name
A user-defined, unique identifier for an Ethernet NIM. A device name (or role name ) is created when you combine the upper and lower numeric rotary switch values with the NIM (for example, STBNIP2212_123). After the NIM is configured with a valid device name, a DHCP server can use it to identify the island and provide an IP address to the NIM at power up.
DHCP
Dynamic Host Configuration Protocol . A TCP/IP protocol that allows a server to assign an IP address based on a device name (host name) to a network node.
DIN
Deutsche Industrial Norms . A German agency that sets engineering and dimensional standards and now has worldwide recognition.
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Glossary
DTM
EIA
EMC
EMI
EOS
Ethernet
Device Type Manager . A DTM is a software component that acts as a device driver.
It contains information for configuring, diagnosing, and maintaining particular field devices. Many manufacturers provide device-specific DTMs, but a generic DTM can be used to drive a wide variety of devices.
E
Electronic Industries Association: An organization that establishes electrical/electronic and data communication standards.
electromagnetic compatibility: Devices that meet EMC requirements can operate within a system’s expected electromagnetic limits without interruption.
electromagnetic interference: EMI can cause an interruption or disturbance in the performance of electronic equipment. It occurs when a source electronically transmits a signal that interferes with other equipment. Also known as radio frequency interference (RFI).
End of Segment: An STB XBE 1100 EOS module is installed in the last position in every segment that has an extension following it, when an island consists of more than 1 segment. The EOS module extends island bus communications to the next segment.
A 10 or 100 Mb/s, CSMA/CD, frame-based LAN that can run over twisted pair or fiber optic cable, or wireless. The IEEE standard 802.3 defines the rules for configuring a wired Ethernet network; the IEEE standard 802.11 defines the rules for configuring a wireless Ethernet network.
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Glossary
F
fallback state
A known state to which an STB I/O module can return in the event that it loses communication with the PLC.
FE functional ground : A grounded supply conductor, often carrying current, that is used to enhance the operation of equipment. Contrast: protective ground (PE) .
Flash memory
Nonvolatile memory that can be overwritten. It is stored on an EEPROM that can be erased and reprogrammed.
H
half duplex
A system of communication that provides for transmissions in both directions, but in only one direction at a time.
HART
HART interface module
A modem that serves as the pass through device between one or more HART master devices, and multiple HART slave devices. In STB the STB AHI 8321 module.
HART master
Highway Addressable Remote Transducer protocol: A bi-directional communication protocol for transmitting—across analog wires—digital information between intelligent field devices and a host control/monitoring system. For more information, refer to the HART Communication Foundation web site: www.hartcomm.org.
A HART host application, typically resident in a PC. For example, asset management software.
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Glossary
HART slave high pass filter
A frequency-based filter that permits transmissions only above a pre-set frequency threshold to pass. In HART, the frequency threshold is typically set in range of
400...800 Hz: transmissions above this threshold—HART digital signals—are allowed to pass through; transmissions beneath this threshold are filtered.
HMI human-machine interface: An operator interface, usually graphical, used by operators of industrial equipment.
hot swapping
A HART compliant smart field device, which responds via the HART protocol only when commanded to do so by a HART master.
I
Replacing a component with a like component while the system remains operational. When the replacement component is installed, it begins to function automatically.
I/O base
A mounting device, designed to seat an STB I/O module, connect the module to a
DIN rail, and connect the module to the island bus. The I/O base provides the connection point where the I/O module can receive power from the input or output power bus distributed by a PDM.
I/O module
In a programmable controller system, an I/O module interfaces directly to the sensors and actuators of the machine/process. This module is the component that mounts in an I/O base and provides electrical connections between the controller and the field devices.
IEC
International Electrotechnical Commission Carrier: Founded in 1884 to focus on advancing the theory and practice of electrical, electronics and computer engineering, and computer science. EN 61131-2 is the specification that deals with industrial automation equipment.
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IEEE
Glossary
Institute of Electrical and Electronics Engineers, Inc.: The international standards and conformity assessment body for all fields of electrotechnology, including electricity and electronics.
IP
Internet Protocol: That part of the TCP/IP protocol family that tracks the internet addresses of nodes, routes outgoing messages, and recognizes incoming messages.
IP rating ingress protection rating: A standardized approach to establishing the degree to which a device resists the ingress of particles and water, as defined by IEC 60529.
For example: z z
IP20 requires that a device not permit the ingress and contact of objects larger than 12.5 mm (0.49 in). The standard does not require resistance to ingress by water.
IP67 requires that a device completely resist the ingress of dust and contact by objects. The standard requires that no Ingress of water in harmful quantity be permitted when the enclosure is immersed in water up to 1 m (39.37 in).
L
low pass filter
A frequency-based filter that permits transmissions only below a pre-set frequency threshold to pass. In HART, the frequency threshold is typically set in range of
25 Hz: transmissions below this threshold—analog signals—are allowed to pass through; transmissions above this threshold—HART digital signals—are filtered.
M
MAC address
Media Access Control address: A 48-bit number, unique on a network, that is programmed into each network card or device when it is manufactured.
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Glossary mandatory module
An STB I/O module configuration setting that requires the module to be present and healthy in the island configuration, if the island is to remain operational. If a mandatory module is inoperable or is removed from its location on the island bus, the island goes to a pre-operational state. By default, all I/O modules are not mandatory. Use the Advantys configuration software to set this parameter.
Modbus
An application layer messaging protocol. Modbus provides serial communications between master and slave devices connected on different types of buses or networks.
multiplexer
A multiplexer (MUX) is a device that selects one of several input signals and forwards the selected input into a single line. In STB, an island consisting of a HART enabled Ethernet network interface module and from 1 to 8 HART interface modules perform the task of multiplexer.
N
NaN
Not a number: A numeric data type value representing an undefined or unrepresentable value.
NEMA
National Electrical Manufacturers Association
NIM network interface module: The interface between an island bus and the fieldbus network of which the island is a part. A NIM enables all the I/O on the island to be treated as a single node on the fieldbus. The NIM also provides 5 V of logic power to the STB I/O modules in the same segment as the NIM. The HART multiplexer uses the STB NIP 2311 Ethernet NIM.
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Glossary
P
PDM power distribution module: A module that distributes either field power to a cluster of input and output modules, located directly to its right, on the island bus. For the
HART multiplexer, you can use either the STB PDT 3100 standard NIM, or the
STB PDT 3105 basic NIM.
PE protective ground : An equipment grounding conductor that keeps the exposed conductive surfaces of equipment at earth potential. A PE conductor does not enhance or facilitate the operation of the equipment. Its purpose is to guard the operator against potential electric shock. Contrast: functional ground (FE) .
PLC primary master
In HART, when two master devices are connected to the HART communication network, the HART controller. The HART primary master is typically asset management software resident on a PC.
process image z z z programmable logic controller: The PLC is a digital computer used for automation of electromechanical processes, such as control of machinery. PLCs are used in many industries and machines. The PLC is designed to: communicate via multiple inputs and outputs operate in an extended range of temperatures perform under conditions that may include dust, water, electrical noise, vibration and impact
Programs to control machine operation are typically stored in non-volatile memory.
A PLC is designed to provide highly deterministic performance, within predictable time boundaries.
A part of the NIM firmware that serves as a real-time data area for the data exchange process. The process image includes an input buffer that contains current data and status information from the island bus and an output buffer that contains the current outputs for the island bus, from the fieldbus master.
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Glossary
R
reflex action
A simple, logical command function configured locally on an island bus I/O module.
Reflex actions are executed by island bus modules on data from various island locations, like input and output modules or the NIM. Examples of reflex actions include compare and copy operations.
RFI radio frequency interference: See EMI .
S
secondary master
In HART, when two master devices are connected to the HART communication network, a hand-held master device temporarily connected to the network.
segment
A group of interconnected I/O and power modules on an island bus. An island consists of at least 1 segment and, depending on the type of NIM used, may have as many as 7 segments. The first (leftmost) module in a segment needs to provide logic power and island bus communications to the I/O modules on its right. In the primary segment, that function is filled by a NIM. In an extension segment, that function is filled by a BOS module.
SELV safety extra low voltage: A secondary circuit designed so that the voltage between any 2 accessible parts (or between 1 accessible part and the PE terminal for Class
1 equipment) does not exceed a specified value under normal conditions or under single point of failure conditions. Schneider Electric’s Phaseo ABL8 range of power supplies has products that comply with the SELV standard in IEC/EN 60364-4-41.
SIM subscriber identification module . In STB, configuration data created or modified with the Advantys configuration software can be stored on a SIM (referred to as the
“removable memory card”) and then written to the NIM’s Flash memory.
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Glossary sink load
An output that, when turned on, receives DC current from its load.
size 1 base
A mounting device, designed to seat an STB module, connect it to a DIN rail, and connect it to the island bus. It is 13.9 mm (0.55 in.) wide and 128.25 mm (5.05 in.) high.
size 2 base
A mounting device, designed to seat an STB module, connect it to a DIN rail, and connect it to the island bus. It is 18.4 mm (0.73 in.) wide and 128.25 mm (5.05 in.) high.
size 3 base
A mounting device, designed to seat an STB module, connect it to a DIN rail, and connect it to the island bus. It is 28.1 mm (1.11 in.) wide and 128.25 mm (5.05 in.) high.
source load
A load with a current directed into its input; it is driven by a current source.
standard I/O
Any of a subset of STB input/output modules designed at a moderate cost to operate with user-configurable parameters. A standard I/O module may be reconfigured with the Advantys configuration software, and may be used in reflex actions.
standard NIM
An STB network interface module designed at moderate cost to support the configuration capabilities, multi-segment design and throughput capacity suitable for many standard applications on the island bus. An island run by a standard NIM can support up to 32 addressable I/O modules. The HART multiplexer uses the
STB NIP 2311 standard NIM.
standard PDM
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A standard PDM (power distribution module) is an STB module that distributes sensor power to the input modules and actuator power to the output modules over two separate power buses on the island. The bus provides a maximum of 4 A to the input modules and 8 A to the output modules. A standard PDM requires a 5 A fuse to help protect the input modules and an 8 A fuse to help protect the outputs. The
HART multiplexer supports the use of the STB PDT 3100 standard PDM.
199
Glossary
TCP
T
transmission control protocol: . A connection-oriented transport layer protocol that provides full-duplex data transmission. TCP is part of the TCP/IP suite of protocols.
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HART
Index
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Index
0-9
140 ACI 030 00
140 ACO 020 00
A
AMS software add Schneider Electric DD file,
discover network,
analog I/O
analog I/O modules
auto-configure,
B
BMX AMI 0410
BMX AMO 0210
BootP server,
C
configuration
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A C current consumption
EOS,
current loop resistance calculating,
D
default IP address,
device description language file, 25
DIN rail installing,
E
EOS module
EOS/BOS modules compatibility
installing extension segments, 77
extension segments installing,
external power supplies
201
Index
F
FE,
Flash memory,
overwriting,
functional ground,
G
getting started,
H
HART protocol,
I
installing extension segments
EOS/BOS modules compatibility ,
IP address
IP address
island bus creating,
island bus node address,
L
logic power,
M
M340 I/O wiring,
202 multiplexer
enclosing,
features,
functions,
I/O placement,
N
network considerations,
NIM
O
output power,
P
PE,
power distribution modules,
power supplies
logic bus current capacity, 56
protective ground,
Q
Quantum I/O wiring,
R
resistance
RFI/EMI
rise and fall times
rotary switches,
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Index
RST button,
S
SELV-rated isolation
in the 24 Vdc power source, 80
Serial to Ethernet Connector,
STB ACI 8320
STB ACO 0220
STB AHI 8321 module
configuring,
IO image,
mandatory,
mapping data items,
STB I/O wiring,
STB modules
STB PDT 310x power supply capacity,
STB XMP 4440 removable memory card
STB XTS 1120 screw type power connector,
STB XTS 2120 spring clamp field wiring con-
storing configuration data to a removable memory card,
T
TSX AEY 810
TSX ASY 420
V
Virtual Placeholders,
S1B40735 4/2013 voltage cut-out switching advantages,
relays for,
W
wattage dissipation in a system cabinet,
wiring
140 ACI 030 00,
140 ACO 020 00,
BMX AMI 0410,
BMX AMO 0210,
M340 I/O,
Premium I/O,
wiring diagram
actuator power, 128 logic power, 128 sensor power, 128
203
Index
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