Rockwell Automation Compact High-density 1769-IF16C, 1769-IF16V Analog Input Modules User Manual
Below you will find brief information for Compact High-density 1769-IF16C, Compact High-density 1769-IF16V. These modules convert and digitally store analog data for retrieval by controllers, such as the CompactLogix or MicroLogix 1500 controllers. The modules provide the following input types and ranges. Normal and Full Ranges Cat. No. Normal Operating Input Range Full Module Range 1769-IF16V ±10V DC ± 10.5V DC 1…5V DC 0.5…5.25V DC 0…5V DC -0.5…+5.25V DC 0…10V DC -0.5…+10.5V DC 0…20 mA 0…21 mA 4…20 mA 3.2…21 mA 1769-IF16C.
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Compact High-density Analog Input
Modules
User Manual
(Catalog Numbers
1769-IF16C, 1769-IF16V
)
Important User Information
Solid state equipment has operational characteristics differing from those of electromechanical equipment. Safety
Guidelines for the Application, Installation and Maintenance of Solid State Controls (publication SGI-1.1
available from your local Rockwell Automation sales office or online at http://literature.rockwellautomation.com
) describes some important differences between solid state equipment and hard-wired electromechanical devices. Because of this difference, and also because of the wide variety of uses for solid state equipment, all persons responsible for applying this equipment must satisfy themselves that each intended application of this equipment is acceptable.
In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from the use or application of this equipment.
The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and requirements associated with any particular installation, Rockwell Automation, Inc. cannot assume responsibility or liability for actual use based on the examples and diagrams.
No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits, equipment, or software described in this manual.
Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell
Automation, Inc., is prohibited.
Throughout this manual, when necessary, we use notes to make you aware of safety considerations.
WARNING
Identifies information about practices or circumstances that can cause an explosion in a hazardous environment, which may lead to personal injury or death, property damage, or economic loss.
IMPORTANT
ATTENTION
Identifies information that is critical for successful application and understanding of the product.
Identifies information about practices or circumstances that can lead to personal injury or death, property damage, or economic loss. Attentions help you identify a hazard, avoid a hazard, and recognize the consequence
SHOCK HAZARD
Labels may be on or inside the equipment, for example, a drive or motor, to alert people that dangerous voltage may be present.
BURN HAZARD
Labels may be on or inside the equipment, for example, a drive or motor, to alert people that surfaces may reach dangerous temperatures.
Rockwell Automation, Allen-Bradley, TechConnect, CompactLogix, Compact I/O, ControlLogix, MicroLogix 1500, RSLogix 5000, RSLogix 500, RSNetWorx, RSNetWorx for DeviceNet, and RSLinx are trademarks of Rockwell Automation, Inc.
Trademarks not belonging to Rockwell Automation are property of their respective companies.
Table of Contents
Overview
Preface
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
About this Publication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Who Should Use This Publication . . . . . . . . . . . . . . . . . . . . . 7
Additional Resources. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Chapter 1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Module Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Module Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Installation and Wiring
Chapter 2
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
General Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Hazardous Location Considerations . . . . . . . . . . . . . . . . 14
Prevent Electrostatic Discharge . . . . . . . . . . . . . . . . . . . . 14
Remove Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Reduce Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Protecting the Circuit Board from Contamination. . . . . . . 15
Assemble the Compact I/O System . . . . . . . . . . . . . . . . . . . 16
Mounting the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Minimum Spacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Mount to a Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Mount to a DIN Rail. . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Replace a Single Module Within a System . . . . . . . . . . . . . . 19
Grounding the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
System Wiring Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Effect of Transducer/Sensor and Cable Length
Impedance on Voltage Input Accuracy . . . . . . . . . . . . . . 21
Label the Terminals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Remove the Finger-safe Terminal Block . . . . . . . . . . . . . . . . 23
Wire the Finger-safe Terminal Block . . . . . . . . . . . . . . . . . . 23
Wire Size and Terminal Screw Torque . . . . . . . . . . . . . . 24
Wire the Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Module Data, Status, and Channel
Configuration
Chapter 3
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Module Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Input Image. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Output Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Configuration File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
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Table of Contents
4
Module Diagnostics and
Troubleshooting
Input Data File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Time Stamp Value (Word 16) . . . . . . . . . . . . . . . . . . . . . 32
General Status Bits (S0…S15) . . . . . . . . . . . . . . . . . . . . . 32
Low Alarm Flag Bits (L0 …L15) . . . . . . . . . . . . . . . . . . . 32
High Alarm Flag Bits (H0…H15). . . . . . . . . . . . . . . . . . . 32
Over-Range Flag Bits (O0…O15) . . . . . . . . . . . . . . . . . . 33
Under-Range Flag Bits (U0…U15). . . . . . . . . . . . . . . . . . 33
Output Data File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Configuration Data File . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Channel Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Enable/Disable Channel (EC) . . . . . . . . . . . . . . . . . . . . . 39
Input Filter Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Input Type/Range Selection . . . . . . . . . . . . . . . . . . . . . . 41
Input Data Selection Formats . . . . . . . . . . . . . . . . . . . . . 41
Real Time Sampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Time Stamping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Process Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Alarm Deadband . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Chapter 4
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Status Indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Activate Devices When Troubleshooting . . . . . . . . . . . . . 47
Stand Clear of the Machine. . . . . . . . . . . . . . . . . . . . . . . 48
Program Alteration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Safety Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Power Cycle Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Channel Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Out-of-range Detection . . . . . . . . . . . . . . . . . . . . . . . . . 49
Process Alarm Detection . . . . . . . . . . . . . . . . . . . . . . . . 49
Open-circuit Detection . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Non-critical vs. Critical Module Errors . . . . . . . . . . . . . . . . . 50
Module Error Definition Table . . . . . . . . . . . . . . . . . . . . . . . 50
Module Error Field. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Extended Error Information Field . . . . . . . . . . . . . . . . . . 51
Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Invalid Input Range Selected . . . . . . . . . . . . . . . . . . . . . 55
Invalid Input Filter Selected . . . . . . . . . . . . . . . . . . . . . . 55
Invalid Input Format Selected . . . . . . . . . . . . . . . . . . . . . 56
Alarm Not Enabled. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Invalid Alarm Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Invalid Real Time Sample Value . . . . . . . . . . . . . . . . . . . 57
Module Inhibit Function . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Contacting Rockwell Automation . . . . . . . . . . . . . . . . . . . . . 57
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Table of Contents
Specifications
Module Addressing and
Configuration with MicroLogix
1500 Controller
Appendix A
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Input Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Certifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Replacement Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Appendix B
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Module Input Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Module Configuration File . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Configure Analog I/O Modules in a MicroLogix 1500 System 64
Configuration Using the RSLogix
5000 Generic Profile for
CompactLogix Controllers
Appendix C
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Add the Module to Your Project . . . . . . . . . . . . . . . . . . . . . 69
Configure Each I/O Module. . . . . . . . . . . . . . . . . . . . . . . . . 72
Two’s Complement Binary
Numbers
Appendix D
Positive Decimal Values . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Negative Decimal Values . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Glossary
Index
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Table of Contents
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Publication 1769-UM018A-EN-P - October 2008
Preface
Introduction
Read this preface to familiarize yourself with the rest of the manual.
Topic
Who Should Use This Publication
Page
About this Publication
Who Should Use This
Publication
This manual is a guide for using Compact High Density Analog Input
Modules, catalog numbers 1769-IF16C and 1769-IF16V. It describes the procedures you use to configure, operate, and troubleshoot your module.
For detailed information on related topics like programming your
CompactLogix or MicroLogix controller, or DeviceNet adapter, or for
information on CompactLogix components, see the list of Additional
.
Use this manual if you are responsible for designing, installing, programming, or troubleshooting control systems that use Compact
I/O modules.
7 Publication 1769-UM018A-EN-P - October 2008
7
8
Preface
Additional Resources
These documents contain additional information about control systems that use Compact I/O modules.
Resource
MicroLogix 1500 User Manual, publication 1764-UM001
DeviceNet Adapter User Manual, publication 1769-UM001
CompactLogix User Manual, publication 1769-UM007
CompactLogix System User Manual, publication 1769-UM011
Compact I/O Selection Guide, publication 1769-SG002
MicroLogix Programmable Controllers Selection Guide, publication 1761-SG001
Industrial Automation Wiring and Grounding Guidelines, publication 1770-4.1
Description
A user manual containing information on how to install, use and program your MicroLogix 1500 controller.
A user manual containing information on how to install, and use your
1769-ADN DeviceNet adapter.
A user manual containing information on how to install, use and program your 1769-L20 and -L30 CompactLogix controllers.
A user manual containing information on how to install, use and program your 1769-L31, -L32C, -L32E, -L35CR and -L35E CompactLogix controllers.
An overview of 1769 Compact I/O modules.
An overview of the MicroLogix 1500 System, including the 1769
Compact I/O system.
In-depth information on grounding and wiring Allen-Bradley programmable controllers.
You can view or download publications at http://literature.rockwellautomation.com
. To order paper copies of technical documentation, contact your local Rockwell Automation distributor or sales representative.
Conventions
These conventions are used throughout this manual:
•
Bulleted lists, such as this one, provide information, not procedural steps.
•
Numbered lists provide sequential steps or hierarchical information.
•
Bold type is used for emphasis.
Publication 1769-UM018A-EN-P - October 2008
Chapter
1
Overview
Introduction
Module Description
Topic
Page
The modules convert and digitally store analog data for retrieval by controllers, such as the CompactLogix or MicroLogix 1500 controllers.
The modules provide the following input types and ranges.
Normal and Full Ranges
Cat. No.
1769-IF16V
1769-IF16C
Normal Operating Input Range
±10V DC
1…5V DC
0…5V DC
0…10V DC
0…20 mA
4…20 mA
Full Module Range
± 10.5V DC
0.5…5.25V DC
-0.5…+5.25V DC
-0.5…+10.5V DC
0…21 mA
3.2…21 mA
The data can be configured as:
• engineering Units.
• scaled-for-PID.
• percent range.
• raw/proportional data.
Module configuration is normally done via the controller’s programming software. In addition, some controllers support configuration via the user program. In either case, the module configuration is stored in the memory of the controller. Refer to your controller’s user manual for more information.
9 Publication 1769-UM018A-EN-P - October 2008
9
Chapter 1 Overview
10
7a
10a
10
10b
8a
1
Hardware Features
2a
OK
Analog
3
DANGER
Do Not Remove RTB Under Power
Unless Area is Non-Hazardous
IN0+
IN1+
IN2+
IN3+
IN4+
IN5+
IN6+
IN7+
COM
COM
IN8+
IN9+
IN10+
IN11+
IN12+
IN13+
IN14+
IN15+
Ensure Adjacent
Bus Lever is Unlatched/Latched
Before/After
Removing/Inserting Module
1769-IF16C
7a
2b
4
OK
Analog
5a
9
7a
5b
5a
9
10a
10
10b
8a
1
OK
Analog
2a
OK
Analog
DANGER
Do Not Remove RTB Under Power
Unless Area is Non-Hazardous
IN0+
IN1+
IN2+
IN3+
IN4+
IN5+
IN6+
IN7+
COM
COM
IN8+
IN9+
IN10+
IN11+
IN12+
IN13+
IN14+
IN15+
Ensure Adjacent
Bus Lever is Unlatched/Latched
Before/After
Removing/Inserting Module
1769-IF16V
3
4
7a
2b
5b
6
7b
8b
9
10
10a
10b
6
7a
7b
8a
3
4
5a
5b
Item
1
2a
2b
8b
7b
6
7b
8b
7b
Description
Bus lever (with locking function)
Upper-panel mounting tab
Lower-panel mounting tab
Module status LEDs
Module door with terminal identification label
Movable bus connector with female pins
Stationary bus connector with male pins
Nameplate label
Upper tongue-and-groove slots
Lower tongue-and-groove slots
Upper DIN-rail latch
Lower DIN-rail latch
Write-on label for user identification tags
Removable terminal block (RTB) with finger-safe cover
RTB upper retaining screw
RTB lower retaining screw
Publication 1769-UM018A-EN-P - October 2008
System Overview
Overview Chapter 1
The modules communicate to the controller through the bus interface.
The modules also receive 5 and 24V DC power through the bus interface.
You can install as many analog modules as your power supply can support. However, the modules may not be located more than eight modules away from the system power supply.
Determine Power Supply Distance
4 3 2 1
or
1 2 3
Power Supply Distance
MicroLogix 1500 Controller with Integrated System
Power Supply
1 2 3 4
Power Supply Distance
Module Operation
Publication 1769-UM018A-EN-P - October 2008
When you cycle power, the modules perform a check of their internal circuits, memory, and basic functions. During this time, the module status OK indicator remains off. If no faults are found during power-cycle diagnostics, the module status OK indicator is turned on.
After power-cycle checks are complete, the modules wait for valid channel configuration data. If an invalid configuration is detected, the modules generate a configuration error. Once a channel is properly configured and enabled, it begins the analog-to-digital conversion process.
Each time a channel is read, the converted analog data value is tested for an over-range or under-range condition. In addition, the modules support user-configured high and low alarm condition tests for each channel. If any of these conditions are detected, unique bits are set in the channel status words.
11
Chapter 1 Overview
The channel status words are described in the
.
The controller reads the two’s complement binary converted analog data from the modules. This typically occurs at the end of the program scan or when commanded by the control program. If the controller and the modules determine that the bus data transfer was made without error, the data is used in your control program.
No field calibration is required.
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Publication 1769-UM018A-EN-P - October 2008
Chapter
2
Installation and Wiring
Introduction
General Considerations
Topic
Assemble the Compact I/O System
Replace a Single Module Within a System
Remove the Finger-safe Terminal Block
Wire the Finger-safe Terminal Block
Page
The Compact I/O system is suitable for use in an industrial environment when installed in accordance with these instructions.
Specifically, this equipment is intended for use in clean, dry environments (Pollution degree 2
(1)
) and to circuits not exceeding
Over Voltage Category II
(2)
(IEC 60664-1).
(3)
13 Publication 1769-UM018A-EN-P - October 2008
(1) Pollution Degree 2 is an environment where, normally, only non-conductive pollution occurs except that occasionally a temporary conductivity caused by condensation shall be expected.
(2) Over Voltage Category II is the load level section of the electrical distribution system. At this level transient voltages are controlled and do not exceed the impulse voltage capability of the product’s insulation.
(3) Pollution Degree 2 and Over Voltage Category II are International Electrotechnical Commission (IEC) designations.
13
Chapter 2 Installation and Wiring
Hazardous Location Considerations
This equipment is suitable for use in Class I, Division 2, Groups A, B,
C, D or non-hazardous locations only. The following attention statement applies to use in hazardous locations.
ATTENTION
EXPLOSION HAZARD
•
Substitution of components may impair suitability for Class I,
Division 2.
•
Do not replace components or disconnect equipment unless power has been switched off or the area is known to be non-hazardous.
•
Do not connect or disconnect components unless power has been switched off or the area is known to be non-hazardous.
•
This product must be installed in an enclosure.
•
All wiring must comply with N.E.C. article 501-4(b).
Prevent Electrostatic Discharge
ATTENTION
Electrostatic discharge can damage integrated circuits or semiconductors if you touch analog I/O module bus connector pins or the terminal block on the input module. Follow these guidelines when you handle the module:
•
Touch a grounded object to discharge static potential.
•
Wear an approved wrist-strap grounding device.
•
Do not touch the bus connector or connector pins.
•
Do not touch circuit components inside the module.
•
Use a static-safe work station, if available.
•
When it is not in use, keep the module in its static-shield box.
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Publication 1769-UM018A-EN-P - October 2008
Publication 1769-UM018A-EN-P - October 2008
Installation and Wiring Chapter 2
Remove Power
ATTENTION
Remove power before removing or inserting this module. When you remove or insert a module with power applied, an electrical arc may occur. An electrical arc can cause personal injury or property damage by:
• sending an erroneous signal to your system’s field devices, causing unintended machine motion.
• causing an explosion in a hazardous environment.
Electrical arcing causes excessive wear to contacts on both the module and its mating connector and may lead to premature failure.
Reduce Noise
Most applications require installation in an industrial enclosure to reduce the effects of electrical interference. Analog inputs are highly susceptible to electrical noise. Electrical noise coupled to the analog inputs will reduce the performance (accuracy) of the module.
Group your modules to minimize adverse effects from radiated electrical noise and heat. Consider the following conditions when selecting a location for the analog module. Position the module:
• away from sources of electrical noise such as hard-contact switches, relays, and ac motor drives.
• away from modules which generate significant radiated heat, such as the 1769-IA16 module. Refer to the module’s heat dissipation specification.
In addition, route shielded, twisted-pair analog input wiring away from any high-voltage I/O wiring.
Protecting the Circuit Board from Contamination
The printed circuit boards of the analog modules must be protected from dirt, oil, moisture, and other airborne contaminants. To protect these boards, the system must be installed in an enclosure suitable for the environment. The interior of the enclosure should be kept clean and the enclosure door should be kept closed whenever possible.
15
Chapter 2 Installation and Wiring
Assemble the Compact I/O
System
The module can be attached to the controller or an adjacent I/O module before or after mounting.
For mounting instructions, see
Panel Mounting Using the Dimensional
, or Mount to a DIN Rail on page 19 . To work
with a system that is already mounted, see
.
3
4
2
1
6
1
5
1. Disconnect power.
2. Check that the bus lever of the module to be installed is in the unlocked (fully right) position.
3. Use the upper and lower tongue-and-groove slots (1) to secure the modules together (or to a controller).
4. Move the module back along the tongue-and-groove slots until the bus connectors (2) line up with each other.
5. Use your fingers or a small screwdriver to push the bus lever back slightly to clear the positioning tab (3).
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Publication 1769-UM018A-EN-P - October 2008
Installation and Wiring Chapter 2
6. To allow communication between the controller and module, move the bus lever fully to the left (4) until it clicks.
Make sure it is locked firmly in place.
ATTENTION
When attaching I/O modules, it is very important that the bus connectors are securely locked together to be sure of proper electrical connection.
7. Attach an end cap terminator (5) to the last module in the system by using the tongue-and-groove slots as before.
8. Lock the end cap bus terminator (6).
IMPORTANT
A 1769-ECR or 1769-ECL right or left end cap must be used to terminate the end of the bus.
Mounting the Module
Publication 1769-UM018A-EN-P - October 2008
ATTENTION
During panel or DIN rail mounting of all devices, be sure that all debris (that is, metal chips or wire strands) is kept from falling into the module. Debris that falls into the module could cause damage when you cycle power.
Minimum Spacing
Maintain spacing from enclosure walls, wireways, or adjacent equipment. Allow 50 mm (2 in.) of space on all sides for adequate ventilation.
Space Requirements
Top
Side Side
Host Controller
Bottom
17
Chapter 2 Installation and Wiring
Mount to a Panel
Mount the module to a panel using two screws per module. Use M4 or #8 panhead screws. Mounting screws are required on every module.
Panel Mounting Using the Dimensional Template
Locate holes every 17.5 mm (0.689 in.) to allow for a mix of single-wide and one-and-a-half-wide modules (for example, the
1769-OA16 module).
Spacing for single-wide modules 35 mm (1.378 in.).
l Mounting
Refer to host controller documentation for this dimension.
Overall hole spacing tolerance:
±0.4 mm (0.016 in.).
Panel Mounting Using the Modules as a Template
This procedure lets you to use the assembled modules as a template for drilling holes in the panel. If you have sophisticated panel-mounting equipment, you can use the dimensional template provided. Due to module mounting hole tolerance, it is important to follow these procedures.
1. On a clean work surface, assemble no more than three modules.
2. Using the assembled modules as a template, carefully mark the center of all module-mounting holes on the panel.
3. Return the assembled modules to the clean work surface, including any previously mounted modules.
4. Drill and tap the mounting holes for the recommended M4 or #8 screw.
5. Place the modules back on the panel, and check for proper hole alignment.
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Publication 1769-UM018A-EN-P - October 2008
Installation and Wiring Chapter 2
6. Attach the modules to the panel using the mounting screws.
TIP
If mounting more modules, mount only the last one of this group and put the others aside. This reduces remounting time during drilling and tapping of the next group.
7. Repeat steps 1…6 for any remaining modules.
Mount to a DIN Rail
The module can be mounted using the following DIN rails:
35 x 7.5 mm (EN 50 022 - 35 x 7.5) or 35 x 15 mm (EN 50 022 - 35 x
15).
Before mounting the module on a DIN rail, close the DIN rail latches.
Press the DIN rail mounting area of the module against the DIN rail.
The latches will momentarily open and lock into place.
Replace a Single Module
Within a System
The module can be replaced while the system is mounted to a panel
(or DIN rail). Follow these steps in order.
1. Remove power.
ATTENTION
Remove power before removing or inserting this module. When you remove or insert a module with power applied, an electrical arc may occur. An electrical arc can cause personal injury or property damage by:
• sending an erroneous signal to your system’s field devices, causing unintended machine motion.
• causing an explosion in a hazardous environment.
Electrical arcing causes excessive wear to contacts on both the module and its mating connector and may lead to premature failure.
2. On the module to be removed, remove the upper and lower mounting screws from the module or open the DIN latches using a flat-blade or Phillips screwdriver.
3. Move the bus lever to the right to disconnect (unlock) the bus.
4. On the right-side adjacent module, move its bus lever to the right (unlock) to disconnect it from the module to be removed.
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Chapter 2 Installation and Wiring
Grounding the Module
5. Gently slide the disconnected module forward.
If you feel excessive resistance, check that the module has been disconnected from the bus, and that both mounting screws have been removed or DIN latches opened.
TIP
It may be necessary to rock the module slightly from front to back to remove it, or, in a panel-mounted system, to loosen the screws of adjacent modules.
6. Before installing the replacement module, be sure that the bus lever on the module to be installed and on the right-side adjacent module are in the unlocked (fully right) position.
7. Slide the replacement module into the open slot.
8. Connect the modules together by locking (fully left) the bus levers on the replacement module and the right-side adjacent module.
9. Replace the mounting screws or snap the module onto the DIN rail.
This product is intended to be mounted to a well-grounded mounting surface such as a metal panel. Additional grounding connections from the module’s mounting tabs or DIN rail (if used) are not required unless the mounting surface cannot be grounded. Refer to Industrial
Automation Wiring and Grounding Guidelines, Allen-Bradley publication 1770-4.1
, for additional information.
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Installation and Wiring Chapter 2
System Wiring Guidelines
Consider the following when wiring your system:
•
All module commons (COM) are connected in the analog module.
•
The analog common (COM) is not connected to earth ground inside the module.
•
Channels are not isolated from each other.
•
To ensure optimum accuracy, limit overall cable impedance by keeping your cable as short as possible. Locate the I/O system as close to your sensors or actuators as your application will permit.
•
Use Belden 8761, or equivalent, shielded wire.
•
Under normal conditions, the drain wire and shield junction must be connected to earth ground via a panel or DIN rail mounting screw at the analog I/O module end.
(1)
Keep shield connection to ground as short as possible.
•
If multiple power supplies are used with analog inputs, the power supply commons must be connected.
•
The modules do not provide loop power for analog inputs. Use a Class 2 power supply that matches the input transmitter specifications.
•
Voltages on IN+ terminals of the modules must be within
±10V DC of module common (COM).
Effect of Transducer/Sensor and Cable Length Impedance on
Voltage Input Accuracy
For voltage inputs, the length of the cable used between the transducer/sensor and the module can affect the accuracy of the data provided by the module.
Publication 1769-UM018A-EN-P - October 2008
(1) In environments where high-frequency noise may be present, it may be necessary to directly ground cable shields to earth at the module end and via a 0.1µF capacitor at the sensor end.
21
Chapter 2 Installation and Wiring
22
Voltage Input Accuracy
Rs Rc
Vs
+
-
V in
Ri
Rc
Where:
Rc = DC resistance of the cable (each conductor) depending on
cable length
Rs = Source impedance of analog transducer/sensor input
Ri = Impedance of the voltage input (1 M
Ω
for 1769-IF16V module)
Vs = Voltage source (voltage at the transducer/sensor input device)
Vin = Measured potential at the module input
%Ai = Percent added inaccuracy in a voltage-based system due
to source and cable impedance.
Vin =
[
(
Ri
×
Vs
Rs
+ 2
×
Rc
]
)
+
Ri
]
For example, for Belden 8761 two conductor, shielded cable:
Rc = 16
Ω
/1000 ft
Rs = 0 (ideal source)
%
Ai
= 1 –
---------
Vs
⎞
×
100
Table 2.1 Effect of Cable Length on Input Accuracy
Length of Cable, m (ft)
50 (164)
100 (328)
200 (656)
300 (984)
DC Resistance of the Cable,
Rc (
Ω
)
2.625
5.25
10.50
15.75
Accuracy Impact at the
Input Module
0.000525%
0.00105%
0.0021%
0.00315%
As input source impedance (Rs) and/or resistance (DC) of the cable
(Rc) get larger, system accuracy decreases. If you determine that the inaccuracy error is significant, implementing the following equation in the control program can compensate for the added inaccuracy error due to the impedance of the source and cable.
Vs
=
Vin
×
[
Rs
+ 2
×
Rc
)
+
Ri
]
Ri
TIP
For the 1769-IF16C module, source and cable impedance do not impact system accuracy.
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Label the Terminals
Installation and Wiring Chapter 2
A removable, write-on label is provided with the module. Remove the label from the door, mark the identification of each terminal with permanent ink, and slide the label back into the door. Your markings
(ID tag) will be visible when the module door is closed.
Remove the Finger-safe
Terminal Block
When wiring field devices to the module, it is not necessary to remove the terminal block. If you remove the terminal block, use the write-on label on the side of the terminal block to identify the module slot location and type. RTB position (for one-and-a-half size modules) can be indicated by circling either the R for right side or L for left side.
Finger-safe Terminal Block
R
SLOT # ____
L
MODULE TYPE _____ RoHS
To remove the terminal block, loosen the upper and lower retaining screws. The terminal block will back away from the module as you remove the screws. When replacing the terminal block, torque the retaining screws to 0.46 N•m (4.1 in•lb).
Wire the Finger-safe
Terminal Block
Upper Retaining Screw
Wire the
Finger-safe
Terminal Block
Publication 1769-UM018A-EN-P - October 2008
Lower Retaining Screw
When wiring the terminal block, keep the finger-safe cover in place.
23
Chapter 2 Installation and Wiring
1. Loosen the terminal screws to be wired.
2. Begin wiring at the bottom of the terminal block and move up.
3. Route the wire under the terminal pressure plate.
You can use the bare wire or a spade lug. The terminals accept a
6.35 mm (0.25 in.) spade lug.
TIP
The terminal screws are non-captive. Therefore, it is possible to use a ring lug (maximum 1/4 in. o.d. with a 0.139 in. minimum i.d. (M3.5)) with the module.
4. Tighten the terminal screw making sure the pressure plate secures the wire.
Recommended torque when tightening terminal screws is
0.68 N•m (6 in•lb).
TIP
If you need to remove the finger-safe cover, insert a screwdriver into one of the square, wiring holes and gently pry the cover off.
If you wire the terminal block with the finger-safe cover removed, you will not be able to put it back on the terminal block because the wires will be in the way.
Wire Size and Terminal Screw Torque
Each terminal accepts up to two wires.
Solid
Wire Type
Cu-90 °C (194 °F)
Stranded Cu-90 °C (194 °F)
Wire Size Terminal Screw
Torque
Retaining Screw
Torque
0.325…2.080 mm
2
(22…14 AWG)
0.325…1.310 mm
2
(22…16 AWG)
0.68 N•m (6 in•lb) 0.46 N•m (4.1 in•lb)
0.68 N
• m (6 in
•lb
) 0.46 N•m (4.1 in• lb
)
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Wire the Modules
Installation and Wiring Chapter 2
ATTENTION
To prevent shock hazard, care should be taken when wiring the module to analog signal sources. Before wiring any analog module, disconnect power from the system power supply and from any other source to the analog module.
After the analog module is properly installed, follow the wiring procedure below. To ensure proper operation and high immunity to electrical noise, always use Belden 8761 (shielded, twisted-pair) or equivalent wire.
ATTENTION
When wiring an analog input, take care to avoid connecting a voltage source to a channel configured for current input.
Improper module operation or damage to the voltage source can occur.
Never connect a voltage or current source to an analog output channel.
Belden 8761 Wire
Cable
Cut foil shield and drain wire.
Signal Wire
Signal Wire
Drain Wire
Foil Shield
Signal Wire
Signal Wire
To wire your module, follow these steps.
1. At each end of the cable, strip some casing to expose the individual wires.
2. Trim the signal wires to 2-inch lengths. Strip about 5 mm
(3/16 in.) of insulation away to expose the end of the wire.
ATTENTION
Be careful when stripping wires. Wire fragments that fall into a module could cause damage when you cycle power.
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25
Chapter 2 Installation and Wiring
IN9+
IN11+
IN13+
IN15+
IN1+
IN3+
IN5+
IN7+
COM
3. At one end of the cable, twist the drain wire and foil shield together.
Under normal conditions, this drain wire and shield junction must be connected to earth ground, via a panel or DIN rail mounting screw at the analog I/O module end. Keep the length of the drain wire as short as possible.
In environments where high frequency noise may be present, it may be necessary to also ground the cable shields to earth via a
0.1 µF capacitor at the sensor end.
4. At the other end of the cable, cut the drain wire and foil shield back to the cable, unless the sensor end of the cable requires the shields to be connected to earth ground via the capacitor
5. Connect the signal wires to the terminal block.
6. Connect the other end of the cable to the analog input or output device.
7. Repeat steps 1…5 for each channel on the module.
Terminal Layout
IN8+
IN10+
IN12+
IN14+
IN0+
IN2+
IN4+
IN6+
COM
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Wiring Single-ended Sensor/Transmitter Types
Sensor/
+
Transmitter
Power Supply
(1)
-
Current or Voltage
Transmitter
+
Signal
Current or Voltage
Transmitter
+
Ground
Signal
(1) The sensor power supply must be rated Class 2.
Installation and Wiring Chapter 2
Terminal Block
Com
Com
IN8+
IN9+
IN10+
IN11+
IN12+
IN13+
IN14+
IN15+
IN0+
IN1+
IN2+
IN3+
IN4+
IN5+
IN6+
IN7+
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Chapter 2 Installation and Wiring
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Publication 1769-UM018A-EN-P - October 2008
Chapter
3
Module Data, Status, and Channel
Configuration
Introduction
Topic
Page
Module Addressing
Slot e
Input Image
File
Slot e
Output Image
File
Slot e
Configuration
File
Input
Image
22 Words
Output
Image
2 Words
This memory map shows the output, input, and configuration tables for the modules.
Memory Map
Channel 0 Data Word Word 0
Channel 15 Data Word
Word 15
Time Stamp Value Word
Word 16
General Status Bits
Word 17
High-/Low-alarm and Over-/Under-range Status Bits Channels 0…3
Word 18
High-/Low-alarm and Over-/Under-range Status Bits Channels 4…7
Word 19
High-/Low-alarm and Over-/Under-range Status Bits Channels 8…11
High-/Low-alarm and Over-/Under-range Status Bits Channels 12…15
Word 20
Word 21
Cancel High/Low Process Alarm Latch Bits Channels 0…7
Cancel High/Low Process Alarm Latch Bits Channels 8…15
Word 0
Word 1
Configuration
File
92 Words
29 Publication 1769-UM018A-EN-P - October 2008
Bit 15
Real Time Sample Rate
Enable Time Stamp
Channel 0 Configuration Words
Channel 15 Configuration Words
Word 0
Word 1, bit 15
Words 2 …7
Bit 0
Words 92…97
29
Chapter 3 Module Data, Status, and Channel Configuration
Input Image
The input image file represents data words and status bits. Input words 0…15 hold the input data that represents the value of the analog inputs for channels 0…15. These data words are valid only when the channel is enabled and there are no errors. If time stamping is enabled, Word 16 in the input data file contains the time stamp value that corresponds to the module's last input data sampling period. Input words 17…21 hold the general status bits for each channel as well as the high and low alarm and over-range and under-range bits. To receive valid status information, the channel must be enabled.
Output Image
The output image file contains the cancel latched alarm control bits for the high and low alarms on each input channel. These bits are used to cancel alarms when alarms are latched.
Configuration File
The configuration file contains information that you use to define the way a specific channel functions.
The manipulation of bits from this file is normally done with programming software (for example, RSLogix 5000, RSLogix 500, or
RSNetWorx for DeviceNet software) during initial configuration of the system. In that case, graphical screens provided by the programming software simplify configuration.
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Publication 1769-UM018A-EN-P - October 2008
Module Data, Status, and Channel Configuration Chapter 3
Some systems, like the 1769-ADN DeviceNet adapter system, also allow the bits to be altered as part of the control program using communication rungs. In that case, it is necessary to understand the bit arrangement
.
TIP
Not all controllers support program access to the configuration file. Refer to your controller’s user manual.
Input Data File
The input data table lets you access analog input module read data for use in the control program, via word and bit access. The data table structure is shown in the table below. For each input module, slot
x, words 0…15 in the input data file contain the converted values of the analog inputs. The most significant bit (MSB) is the sign bit, which is in two’s complement format. ‘Nu’ indicates not used with the bit set to 0.
Input Data Array
15
Word 14
Word 15
Word 16
Word 17
Word 18
Word 19
Word 20
Word 21
Word 6
Word 7
Word 8
Word 9
Word 10
Word 11
Word 12
Word 13
Word/
Bit
Word 0
Word 1
Word 2
Word 3
Word 4
Word 5
SGN
SGN
SGN
SGN
SGN
SGN
SGN
SGN
SGN
SGN
SGN
SGN
SGN
SGN
SGN
SGN
Nu
S15
L3
L7
L11
L15
14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
Analog Read (Input) Data Value Channel 0
Analog Read (Input) Data Value Channel 1
Analog Read (Input) Data Value Channel 2
Analog Read (Input) Data Value Channel 3
Analog Read (Input) Data Value Channel 4
Analog Read (Input) Data Value Channel 5
Analog Read (Input) Data Value Channel 6
Analog Read (Input) Data Value Channel 7
Analog Read (Input) Data Value Channel 8
Analog Read (Input) Data Value Channel 9
Analog Read (Input) Data Value Channel 10
Analog Read (Input) Data Value Channel 11
Analog Read (Input) Data Value Channel 12
Analog Read (Input) Data Value Channel 13
Analog Read (Input) Data Value Channel 14
Analog Read (Input) Data Value Channel 15
Time Stamp Value
S14 S13 S12 S11 S10 S9
H3 U3 O3
H7 U7 O7
L2
L6
H2
H6
U2
U6
S8 S7
O2 L1
O6 L5
S6
H1
H5
S5 S4 S3
U1 O1 L0
U5 O5 L4
S2
H0
H4
S1 S0
U0 O0
U4 O4
H11 U11 O11 L10 H10 U10 O10 L9 H9 U9 O9 L8 H8 U8 O8
H15 U15 O15 L14 H14 U14 O14 L13 H13 U13 O13 L12 H12 U12 O12
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Chapter 3 Module Data, Status, and Channel Configuration
Time Stamp Value (Word 16)
The modules support a 15-bit rolling timestamp that is updated during each new update of the analog input values. The timestamp has a
1 ms resolution. If the timestamp function is enabled, the timestamp value is placed in the Input Data file, word 16, following each module conversion cycle. Enable and/or disable this timestamp in word 1, bit
15 of the Configuration Data file.
General Status Bits (S0…S15)
Word 17, bits 0…15 contain the general operational status bits for input channels 0…15. If set (1), these bits indicate an alarm or range error associated with that channel. The over- and under-range bits and the high- and low-alarm bits for channels 0…15 are logically ORed to the appropriate general status bit.
Low Alarm Flag Bits (L0 …L15)
Words 18…21, bits 3, 7, 11, and 15 contain the low alarm flag bits for input channels 0…15. If set (1), these bits indicate the input signal is outside the user-defined range. The module continues to convert analog data to minimum full-range values. The bit is automatically reset (0) when the low alarm condition clears, unless the channel’s alarm bits are latched. If the channel’s alarm bits are latched, a set (1) low alarm flag bit clears via the corresponding Cancel Low Process
Alarm Latch bit in your output data file.
High Alarm Flag Bits (H0…H15)
Words 18…21, bits 2, 6, 10, and 14 contain the high alarm flag bits for input channels 0…15. If set (1), the input signal is outside the user-defined range. The module continues to convert analog data to maximum full-range values. The bit is automatically reset (0) when the high alarm condition clears, unless the channel’s alarm bits are latched. If the channel’s alarm bits are latched, a set (1) high alarm flag bit clears via the corresponding Cancel High Process Alarm Latch bit in your output data file.
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Module Data, Status, and Channel Configuration Chapter 3
Over-Range Flag Bits (O0…O15)
Over-range bits for channels 0…15 are contained in Words 18…21, bits 0, 4, 8, and 12. When set (1), this bit indicates an input signal is beyond the normal operating range. For the 1769-IF16V module, it may also indicate an open circuit condition. However, the module continues to convert analog data to the maximum full range value.
The bit is automatically reset (0) by the module when the over-range condition is cleared and the data value is within the normal operating range.
Under-Range Flag Bits (U0…U15)
Under-range bits for channels 0…15 are contained in Words 18…21, bits 1, 5, 9, and 13. When set (1), this bit indicates an input signal is below the normal operating range. For the 1769-IF16C module, it may also indicate an open circuit condition. However, the module continues to convert analog data to the minimum full range value. The bit is automatically reset (0) by the module when the under-range condition is cleared and the data value is within the normal operating range.
Output Data File
The output data table lets you access analog output module write data for use in the control program, via word and bit access.
Word/
Bit
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
Word 0 CLL7 CLH7 CLL6 CLH6 CLL5 CLH5 CLL4 CLH4 CLL3 CLH3 CLL2 CLH2 CLL1 CLH1 CLL0 CLH0
Word 1 CLL15 CLH15 CLL14 CLH14 CLL13 CLH13 CLL12 CLH12 CLL11 CLH11 CLL10 CLH10 CLL9 CLH9 CLL8 CLH8
These bits are written during run mode to cancel any latched low- and high-process alarms. The alarm is unlatched when the unlatch bit is set (1) and the alarm condition no longer exists. If the alarm condition persists, then the unlatch bit has no effect until the alarm condition no longer exists. You need to keep the unlatch bit set until verification from the appropriate input channel status word that the alarm status bit has cleared (0). Then you need to reset (0) the unlatch bit. The module will not latch an alarm condition if a transition from ‘no alarm’ to ‘alarm’ occurs while a channel’s cancel latch bit is set.
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Chapter 3 Module Data, Status, and Channel Configuration
Configuration Data File
The configuration file lets you determine how each individual input channel will operate. Parameters such as the input type and data format are set up using this file. This data file is writable and readable.
The default value of the configuration data table is all zeros.
Word/Bit 15
Word 0
Word 1
Word 2
Word 3
Word 4
Word 5
Word 6
14 13 12 11 10 09 08
0
ETS
EC
Real Time Sample Value
Reserved
Reserved
Reserved
EA AL
EI
(1)
Input Data Format
Ch0
SGN Process Alarm High Data Value Channel 0
SGN Process Alarm Low Data Value Channel 0
Word 7
Word 8
Word 9
Word 10
Word 11
SGN Alarm Dead Band Value Channel 0
Reserved
EC
Reserved
Reserved EA AL
Input Data Format
Ch1
SGN Process Alarm High Data Value Channel 1
EI
SGN Process Alarm Low Data Value Channel 1
Word 12
Word 13
Word 14
Word 15
SGN Alarm Dead Band Value Channel 1
Reserved
EC Reserved EA AL
EI
Reserved Input Data Format
Ch2
SGN Process Alarm High Data Value Channel 2 Word 16
Word 17
Word 18
Word 19
Word 20
Word 21
Word 22
Word 23
Word 24
Word 25
SGN
SGN
Reserved
Process Alarm Low Data Value Channel 2
Alarm Dead Band Value Channel 2
EC Reserved EA AL
EI
Reserved Input Data Format
Ch3
SGN Process Alarm High Data Value Channel 3
SGN Process Alarm Low Data Value Channel 3
SGN Alarm Dead Band Value Channel 3
Reserved
07 06
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
05 04 03 02 01 00
Input Filter Sel Ch0
Input Type/Range Select Ch0
Input Filter Sel Ch1
Input Type/Range Select Ch1
Input Filter Sel Ch2
Input Type/Range Select Ch2
Input Filter Sel Ch3
Input Type/Range Select Ch3
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Module Data, Status, and Channel Configuration Chapter 3
Word/Bit
Word 26
Word 27
Word 28
Word 29
Word 30
Word 31
Word 32
Word 33
Word 34
Word 35
Word 36
Word 37
Word 38
15
EC
Reserved
14 13
Reserved
12 11 10 09
EA AL
08
Input Data Format
Ch4
SGN Process Alarm High Data Value Channel 4
SGN Process Alarm Low Data Value Channel 4
SGN Alarm Dead Band Value Channel 4
Reserved
EC Reserved EA AL
Reserved Input Data Format
Ch5
SGN Process Alarm High Data Value Channel 5
SGN Process Alarm Low Data Value Channel 5
Word 39
Word 40
Word 41
Word 42
Word 43
Word 44
Word 45
Word 46
Word 47
Word 48
Word 49
Word 50
Word 51
Word 52
Word 53
Word 54
Word 55
SGN Alarm Dead Band Value Channel 5
Reserved
EC Reserved EA AL
Reserved Input Data Format
Ch6
SGN Process Alarm High Data Value Channel 6
SGN Process Alarm Low Data Value Channel 6
SGN Alarm Dead Band Value Channel 6
Reserved
EC Reserved EA AL
Reserved Input Data Format
Ch7
SGN Process Alarm High Data Value Channel 7
SGN
SGN
Reserved
Process Alarm Low Data Value Channel 7
Alarm Dead Band Value Channel 7
EC Reserved EA AL
Reserved Input Data Format
Ch8
SGN Process Alarm High Data Value Channel 8
SGN Process Alarm Low Data Value Channel 8
SGN Alarm Dead Band Value Channel 8
Reserved
07 06
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
05 04 03 02 01
Input Filter Sel Ch4
00
Input Type/Range Select Ch4
Input Filter Sel Ch5
Input Type/Range Select Ch5
Input Filter Sel Ch6
Input Type/Range Select Ch6
Input Filter Sel Ch7
Input Type/Range Select Ch7
Input Filter Sel Ch8
Input Type/Range Select Ch8
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Chapter 3 Module Data, Status, and Channel Configuration
Word/Bit
Word 56
Word 57
Word 58
Word 59
Word 60
Word 61
Word 62
Word 63
Word 64
Word 65
Word 66
Word 67
Word 68
15
EC
Reserved
14 13
Reserved
12 11 10
EA
09
AL
08
EI
Input Data Format
Ch9
SGN Process Alarm High Data Value Channel 9
SGN Process Alarm Low Data Value Channel 9
SGN Alarm Dead Band Value Channel 9
Reserved
EC Reserved EA AL
EI
Reserved Input Data Format
Ch10
SGN Process Alarm High Data Value Channel 10
SGN Process Alarm Low Data Value Channel 10
Word 69
Word 70
Word 71
Word 72
Word 73
Word 74
Word 75
Word 76
Word 77
Word 78
Word 79
Word 80
Word 81
Word 82
Word 83
Word 84
Word 85
SGN Alarm Dead Band Value Channel 10
Reserved
EC Reserved EA AL
EI
Reserved Input Data Format
Ch11
SGN Process Alarm High Data Value Channel 11
SGN Process Alarm Low Data Value Channel 11
SGN Alarm Dead Band Value Channel 11
Reserved
EC Reserved EA AL
EI
Reserved Input Data Format
Ch12
SGN Process Alarm High Data Value Channel 12
SGN
SGN
Reserved
Process Alarm Low Data Value Channel 12
Alarm Dead Band Value Channel 12
EC Reserved EA AL
EI
Reserved Input Data Format
Ch13
SGN Process Alarm High Data Value Channel 13
SGN Process Alarm Low Data Value Channel 13
SGN Alarm Dead Band Value Channel 13
Reserved
07 06
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
05 04 03 02 01
Input Filter Sel Ch9
00
Input Type/Range Select Ch9
Input Filter Sel Ch10
Input Type/Range Select
Ch10
Input Filter Sel Ch11
Input Type/Range Select
Ch11
Input Filter Sel Ch12
Input Type/Range Select
Ch12
Input Filter Sel Ch13
Input Type/Range Select
Ch13
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Module Data, Status, and Channel Configuration Chapter 3
Word/Bit
Word 86
Word 87
Word 88
Word 89
Word 90
Word 91
Word 92
Word 93
Word 94
Word 95
Word 96
Word 97
15
EC
Reserved
14 13
Reserved
12 11 10 09
EA AL
08
Input Data Format
Ch14
SGN Process Alarm High Data Value Channel 14
SGN Process Alarm Low Data Value Channel 14
SGN Alarm Dead Band Value Channel 14
Reserved
EC Reserved EA AL
Reserved Input Data Format
Ch15
SGN Process Alarm High Data Value Channel 15
SGN Process Alarm Low Data Value Channel 15
SGN Alarm Dead Band Value Channel 15
Reserved
07 06
Reserved
Reserved
Reserved
Reserved
05 04 03 02 01
Input Filter Sel Ch14
00
Input Type/Range Select
Ch14
Input Filter Sel Ch15
Input Type/Range Select
Ch15
(1) Alarm interrupts are not supported by all bus masters. Check your controller’s user manual to determine if expansion I/O interrupts are supported.
For information on configuring the module using MicroLogix 1500 and
RSLogix 500 software, see Appendix B ; for CompactLogix and RSLogix
5000 software, see Appendix C ; for 1769-ADN DeviceNet adapter and
RSNetWorx software, see
The configuration file can also be modified through the control program, if supported by the controller. The structure and bit settings are shown in
Channel Configuration on page 38
.
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Chapter 3 Module Data, Status, and Channel Configuration
Channel Configuration
Each channel is independently configured via a group of six consecutive words in the Configuration Data file. The first two words of the group consist of bit fields, the settings of which determine how the channel operates. See the tables below and the descriptions that follow for valid configuration settings and their meanings. The default bit status of the configuration file is all zeros.
Bit Definitions for Channel Configuration Words
Define
Input Filter Selection
To Choose Make these bit settings
60 Hz
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
0 0 0 0
50 Hz
16 Hz
315 Hz
1365 Hz
0
0
0
0
0
0
0
1
0
1
1
0
1
0
1
0
Enable Interrupt
(1) (2)
(EI)
1
0
Process Alarm Latch
(AL)
Enable Process Alarms
(EA)
Enable Channel (EC)
Enable
Disable
Enable
Disable
Enable
Disable
Enable
Disable
1
0
1
0
1
0
(1) Alarm interrupts are not supported by all bus masters. Check your controller’s user manual to determine if expansion I/O interrupts are supported.
(2) Do not set this bit to 1 unless the Enable Process Alarms (EA) bit is also set to 1 for the same channel.
1769-IF16C Module: Bit Definitions for Input Range and Input Data Configuration Words
Define
Input Range
Select
Input Data
Format Select
To Choose
4…20 mA
0…20 mA
Proportional Counts
Engineering Units
Scaled for PID
Percent Range
Make these bit settings
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
0 0
0 0
0 1
0 1
0
1
0
1
0
0
0
0
0
0
0
1
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Module Data, Status, and Channel Configuration Chapter 3
1769-IF16V Module: Bit Definitions for Input Range and Input Data Configuration Words
Define
Input
Range
Select
Input
Data
Format
Select
To Choose
-10…+10V
0…5V
0…10V
1…5V
Proportional Counts
Engineering Units
Scaled for PID
Percent Range
Make these bit settings
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
0 0 0 0
0 0 0 1
0
0
0
0
1
1
0
1
0
0
0
0
0
0
1
1
0
1
0
1
Enable/Disable Channel (EC)
This configuration selection lets each channel be enabled individually.
TIP
When a channel is not enabled (0), no voltage or current reading is provided to the controller by the
A/D converter.
Input Filter Selection
The input filter selection field lets you select the filter frequency for each channel. The filter frequency affects the noise rejection characteristics, channel step response, and module update time, as explained below.
Noise Rejection
The modules use a digital filter that provides noise rejection for the input signals. The filter is programmable, allowing you to select from five filter frequencies for each channel. A lower frequency (60 Hz versus 315 Hz) can provide better noise rejection but it increases channel update time.
Normal Mode Rejection is better than 50 dB at 50 and 60 Hz, with the
50 and 60 Hz filters selected, respectively. Transducer power supply noise, transducer circuit noise, or process variable irregularities may also be sources of normal mode noise.
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Chapter 3 Module Data, Status, and Channel Configuration
Common Mode Rejection is better than 60 dB at 50 and 60 Hz, with the 50 and 60 Hz filters selected, respectively. The modules perform well in the presence of common mode noise as long as the signals applied to the IN+ and COM input terminals do not exceed the working voltage rating of the module. Improper earth ground may be a source of common mode noise.
Channel Step Response
The selected channel filter frequency determines the channel’s step response. The step response is the time required for the analog input signal to reach 100% of its expected final value. This means that if an input signal changes faster than the channel step response, a portion of that signal will be attenuated by the channel filter.
Filter Selection
16 Hz
50 Hz
60 Hz
315 Hz
1365 Hz
Channel Step Response
1550 ms
500 ms
420 ms
90 ms
35 ms
Module Update Time and Scanning Process
The module update time is defined as the time required for the module to sample and convert the input signals of all enabled input channels and provide the resulting data values to the Data Input file.
Module update time can be calculated by adding the sum of all enabled channel update times. Channel update times include channel scan time, channel switching time, and converter configuration time.
The module sequentially samples the channels in a continuous loop.
The 1769-IF16C and 1769-IF16V modules use parallel sampling to update the entire module (all 16 channels, if enabled) in an amount of time equal to only 8 channel update times. The module performs parallel channel sampling on pairs of inputs.
The input channels are paired as follows: [0,1], [2,3], [4,5], [6,7], [8,9],
[10,11] [12,13], [14, 15]. The channels in the same pair are sampled at the same time. Channel update time is thus input pair update time. If channels in the same input pair have different filter settings, the input pair update time is determined by the channel with the lowest filter setting. A channel that is not enabled has a channel update time of 0 ms. If neither channel of an input pair is enabled, the input pair update time is 0 ms.
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Module Data, Status, and Channel Configuration Chapter 3
Module update time is calculated by adding up all of the input pair update times. This table shows the input pair update times when the lowest filter setting for the input pair is as shown. The table also shows the module update time assuming all input pairs have at least one channel enabled and the lowest filter setting is the same for each input pair.
Filter Setting and Update Times
Filter Setting
16 Hz
50 Hz
60 Hz
315 Hz
1365 Hz
Update Time per Input
Pair
200 ms
70 ms
60 ms
15 ms
5 ms
Update Time per
Module
(1) (2)
1600 ms
560 ms
480 ms
120 ms
40 ms
(1) Eight input pairs having at least one channel enabled with the lowest filter setting as shown selected for all.
(2) If you use real-time sampling, the user-configured sample rate is used as the module update time.
Input Type/Range Selection
This selection lets you configure each channel individually and provides the ability to read the configured range selections.
Input Data Selection Formats
This selection configures each channel to present analog data in any of the following formats.
•
Raw/Proportional Data
•
Engineering Units
•
Scaled-for-PID
•
Percent Range
See Valid Input Data on page 42
.
Raw/Proportional Data
The value presented to the controller is proportional to the selected input and scaled into the maximum data range allowed by the bit resolution of the A/D converter. For example, the data value range for a ±10V DC user input is -32,767…32,767, which covers the full-scale range of -10.5…10.5V.
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Chapter 3 Module Data, Status, and Channel Configuration
Engineering Units
The module scales the analog input data to the actual current or voltage values for the selected input range. The resolution of the engineering units is 0.001V or 0.001 mA per count.
Scaled-for-PID
The value presented to the controller is a signed integer with zero representing the lower limit of the normal operating range and 16,383 representing the upper limit of the normal operating range.
Allen-Bradley controllers, such as the MicroLogix 1500 controller, use this range in their PID equations. The amount over and under the normal operating range (the full-scale range) is also supported.
Percent Range
The input data is presented as a percentage of the normal operating range. For example, 0V…10V DC equals 0…100%. The amount over and under the normal operating range (the full-scale range) is also supported.
Valid Input Data Word Formats/Ranges
The following table shows the valid formats and min./max. data ranges provided by the module.
Valid Input Data
Module
1769-IF16V
1769-IF16C
Normal
Operating
Input Range
-10…10V DC
0…5V DC
0…10V DC
1…5V DC
0…20 mA
4…20 mA
Full Range
(1)
-10.5…10.5V
-0.5…5.25V
-0.5…10.5V
0.5…5.25V
0…21 mA
3.2…21 mA
Raw/
Proportional
Data
Engineering
Units
(2)
Full Range
Full Range
-32,767…
32,767
-32,767…
32,767
Scaled-for-PID
-10,500…
10,500
-500…5250
-500… 10,500
500…5250
0…21,000
3200…
21,000
Normal
Operating
Range
Full
Range
0…16383
0…16383
-410…
16,793
-1638…
17,202
-819…
17,202
-2048…
17,407
0…
17,202
-819…
+17,407
Percent Range
(3)
Normal
Operating
Range
-10,000…
10,000
0…10,000
0…10,000
Full
Range
-10,500…
10,500
-1000…
10,500
-500…
10,500
-1250…
10,625
0…
10,500
-500…
10,625
(1) includes amounts over and under normal operating range
(2) 1 count = 0.001V or 0.001 mA
(3) 1 count = 0.01%
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Module Data, Status, and Channel Configuration Chapter 3
Real Time Sampling
This parameter instructs the module how often to initiate a conversion cycle that will convert each enabled input channel and then place that data into the Input Data file. A conversion cycle is defined as the sequential conversion of each input pair that has at least one of its channels enabled. When the module has performed a conversion on each of the input pairs, it is ready to begin the next conversion cycle.
This feature is applied on a module-wide basis.
During module configuration, you specify a Real Time Sampling (RTS) period by entering a value into Word 0 of the Configuration Data file.
This value entered in Word 0 can be in the range of 0…5000 and indicates the conversion cycle rate the module will use in 1 ms increments.
If you enter a 0 for the Real Time Sample Rate, the modules initiate conversion cycles at the fastest rate possible, controlled by the filter setting selected for each enabled channel within the input pairs. Once all of the channels’ input data has been converted, the Input Data file is updated for all enabled channels at the same time.
If you enter a non-zero value for the Real Time Sample Rate, the module compares the Real Time Sample Rate value with the calculated module update time, again based on the filter setting selected for each enabled channel within the input pairs. If the value entered for the Real Time Sample Rate is smaller than the calculated module update time, the module indicates a configuration error. The longest Real Time Sample Rate supported by the modules is 5 seconds, which corresponds to the maximum value for Word 0 of the
Configuration Data file of 5000 decimal. See
for details on calculating the module update time.
Time Stamping
This parameter instructs the module to insert a time stamp value into the Input Data file every time the file is updated.
During module configuration, you enable time stamping using Word
1, bit 15 of the Configuration Data file: Enable Time Stamping (ETS).
Setting the ETS bit (1) enables the module’s time stamping function.
Clearing the ETS bit (0) disables the function. The default condition of the ETS bit is disabled (0).
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Chapter 3 Module Data, Status, and Channel Configuration
When time stamping is enabled, the module provides a rolling time stamp value of 0…32,767 with each count representing 1 ms. When the time stamp count reaches 32,767, the value is reset to 0 and continues to increment one count every millisecond.
When enabled, the Input Data file is updated with the latest time stamp value which corresponds to the end of each module conversion cycle. Sequentially, each input pair, where at least one of the channels is enabled, is converted once per conversion cycle. In normal sampling mode, when Real Time Sampling is not enabled, conversion cycles are repeatedly initiated at the module update rate. If Real Time
Sampling is used, the conversion cycles are initiated at a rate equal to the real time sampling rate. The time stamp value is updated at the end of every conversion cycle.
Process Alarms
Process alarms alert you when the module has exceeded configured high or low limits for each channel. You can latch process alarms.
Process alarms can generate interrupts
(1)
. A channel’s process alarms are set at two user configurable alarm trigger points:
•
Process Alarm High
•
Process Alarm Low
The operation of each input channel’s process alarms are controlled by bits in the Configuration Data file. Enable alarms for a channel by setting (1) the EA bit for that channel. Set the AL bit (1) for a channel to enable the alarm latching. Set the EI bit (1) for a channel to enable
interrupts on that channel’s process alarms
.
Each channel’s process alarm high data value and process alarm low data value are set by entering values in the corresponding words of the Configuration Data file for that channel.
The values entered for a channel’s process alarms must be within the full-scale data range as set by the input Data Format selected for that channel. If a process alarm data value is entered that is outside the full-scale data range set for a channel, the module indicates a configuration error.
44
(1) Module interrupts are not supported by all bus masters. Refer to your controller’s user manual to determine whether it can support module interrupts.
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Module Data, Status, and Channel Configuration Chapter 3
Alarm Deadband
You may configure an alarm deadband to work with the process alarms. The deadband lets the process alarm status bit remain set, despite the alarm condition disappearing, as long as the input data remains within the deadband of the process alarm.
This illustration shows an example of input data that sets each of the two alarms at some point during module operation. In this example, latching is disabled; therefore, each alarm turns OFF when the condition that caused it to set ceases to exist and the input data clears the alarm deadband regions.
Alarm Deadbands
High
High alarm turns ON.
High alarm turns OFF.
Normal Input Range
Low alarm turns ON.
Low
Alarm Deadbands
Low alarm turns OFF.
The module checks for an alarm deadband value that is less than 0 or large enough to be equal to or exceed one-half of the difference between the High alarm and Low alarm values. When one of these conditions occurs, a module configuration fault results.
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Chapter 3 Module Data, Status, and Channel Configuration
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Chapter
4
Module Diagnostics and Troubleshooting
Introduction
Topic
Non-critical vs. Critical Module Errors
Contacting Rockwell Automation
Page
Safety Considerations
Safety considerations are an important element of proper troubleshooting procedures. Actively thinking about the safety of yourself and others, as well as the condition of your equipment, is of primary importance.
The following sections describe several safety concerns you should be aware of when troubleshooting your control system.
ATTENTION
Never reach into a machine to actuate a switch because unexpected motion can occur and cause injury.
Remove all electrical power at the main power disconnect switches before checking electrical connections or inputs/outputs causing machine motion.
47 Publication 1769-UM018A-EN-P - October 2008
Status Indicators
When the green status indicator on the analog module is illuminated, it indicates that power is applied to the module.
Activate Devices When Troubleshooting
When troubleshooting, never reach into the machine to actuate a device. Unexpected machine motion could occur.
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Chapter 4 Module Diagnostics and Troubleshooting
Stand Clear of the Machine
When troubleshooting any system problem, have all personnel remain clear of the machine. The problem could be intermittent, and sudden unexpected machine motion could occur. Have someone ready to operate an emergency stop switch in case it becomes necessary to shut off power to the machine.
Program Alteration
There are several possible causes of alteration to the user program, including extreme environmental conditions, Electromagnetic
Interference (EMI), improper grounding, improper wiring connections, and unauthorized tampering. If you suspect a program has been altered, check it against a previously saved program on an
EEPROM or UVPROM memory module.
Safety Circuits
Circuits installed on the machine for safety reasons, like over-travel limit switches, stop push buttons, and interlocks, should always be hard-wired to the master control relay. These devices must be wired in series so that when any one device opens, the master control relay is de-energized, thereby removing power to the machine. Never alter these circuits to defeat their function. Serious injury or machine damage could result.
Power Cycle Diagnostics
When you cycle power to the module, a series of internal diagnostic tests are performed. These diagnostic tests must be successfully completed or the module status indicator remains off and a module error results and is reported to the controller.
Diagnostics
Module Status
Indicator
Condition
On
Off
Corrective Action
Proper Operation No action required.
Module Fault Cycle power. If condition persists, replace the module. Call your local distributor or Rockwell
Automation for assistance.
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Channel Diagnostics
Module Diagnostics and Troubleshooting Chapter 4
When an input channel is enabled, the modules perform a diagnostic check to see that the channel has been properly configured. In addition, the modules check each channel during every conversion cycle for over-range and under-range, high and low process alarm conditions, and open-circuit conditions.
Out-of-range Detection
Whenever data received at an input is out of the defined normal operating range, an over-range or under-range error is indicated in the
Input Data file.
Process Alarm Detection
Whenever data received at an input meets or exceeds that channel’s configured process alarm limits, a high alarm or low alarm error is indicated at the Input Data file.
Open-circuit Detection
The 1769-IF16V module provides open-circuit detection on all enabled channels. Whenever an open-circuit condition occurs, the over-range error bit for that channel is set and the channel’s input data reading will be at the maximum, full-range value in the Input Data file.
The 1769-IF16C module also provides open-circuit detection on all enabled channels. Whenever an open-circuit condition occurs, the under-range error bit for that channel is set and the channel’s input data reading will be at the minimum, full-range value in the Input
Data file.
Possible causes of an open circuit include:
• the sensing device may be broken.
• a wire may be loose or cut.
• the sensing device may not be installed on the configured channel.
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Chapter 4 Module Diagnostics and Troubleshooting
Non-critical vs. Critical
Module Errors
Non-critical module errors are typically recoverable. Channel errors
(over-range or under-range errors, process alarms, and open circuit errors) are non-critical. Non-critical errors are indicated in the module input data table.
Critical module errors are conditions that prevent normal or recoverable operation of the system. When these types of errors occur, the system typically leaves the run or program mode of operation until the error can be dealt with.
Critical module errors are indicated in Error Codes on page 51
.
Module Error Definition
Table
Module Error Table
15
0
14
0
Don’t Care Bits
13
0
Hex Digit 4
12
0
Module errors are expressed in two fields as four-digit Hex format with the most significant digit as don’t care and irrelevant. The two fields are Module Error and Extended Error Information.
11
0
Module Error
10
0
9
0
Hex Digit 3
8
0
7
0
6
0
Extended Error Information
5
0
Hex Digit 2
4
0
3
0
2
0
1
0
Hex Digit 1
0
0
Module Error Field
The purpose of the module error field is to classify module errors into three distinct groups, as described in the table below. The type of error determines what kind of information exists in the extended error information field. Refer to your controller manual for details.
Module Error Types
Error Type
No Errors
Module Error
Field Value
Bits 11…09
(Bin)
000
Hardware
Errors
Configuration
Errors
001
010
Description
No error is present. The extended error field holds no additional information.
General and specific hardware error codes are specified in the extended error information field.
Module-specific error codes are indicated in the extended error field. These error codes correspond to options that you can change directly. For example, the input range or input filter selection.
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Module Diagnostics and Troubleshooting Chapter 4
Extended Error Information Field
Depending upon the value in the module error field, the extended error information field can contain error codes that are module-specific or common to all 1769 analog modules.
TIP
If no errors are present in the module error field, the extended error information field will be set to zero.
Error Codes
Error codes can help troubleshoot your module.
Extended Error Codes for Hardware Errors
Error Type
No Error
General Common
Hardware Error
Hardware-
Specific Error
Hex
Equivalent
X000
X200
X201
X300
X301
X302
(1)
Module
Error
Code
Binary
000
001
001
001
001
001
Extended Error
Information
Code
Binary
1 0000 0000
1 0000 0001
Error Description
0 0000 0000 No Error
General hardware error; no additional information
Power-up reset state
1 0000 0000 General hardware error
1 0000 0001 Microprocessor hardware error
1 0000 0010 A/D converter communication error
(1) X represents the Don’t Care digit. Module hardware error codes are typically presented in their Hex Equivalent by the programming software.
During system configuration, if you set the fields in the configuration file to invalid or unsupported values, the modules generate a configuration error and the system controller enters a Fault condition.
The invalid configuration data must be corrected and the program downloaded again for the system to enter Run mode. You cannot change module configuration data while the system is in Run mode.
Any changes are ignored by the modules, which continue to operate with their previous configuration.
Extended Error Codes for Configuration Errors
Hex Equivalent
(1)
X400
X401
X402
X403
Module
Error Code
Binary
010
010
010
010
Extended Error
Information Code
Binary
0 0000 0000
0 0000 0001
0 0000 0010
0 0000 0011
Error Description
General configuration error; no additional information
Invalid input range selected (channel 0)
Invalid input range selected (channel 1)
Invalid input range selected (channel 2)
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Chapter 4 Module Diagnostics and Troubleshooting
Extended Error Codes for Configuration Errors
Hex Equivalent
(1)
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
Module
Error Code
Binary
010
010
010
010
010
010
010
010
X412
X413
X414
X415
X416
X417
X40C
X40D
X40E
X40F
X410
X411
X404
X405
X406
X407
X408
X409
X40A
X40B
X41E
X41F
X420
X421
X422
X423
X424
X425
X418
X419
X41A
X41B
X41C
X41D
Extended Error
Information Code
Binary
0 0000 0100
0 0000 0101
0 0000 0110
0 0000 0111
0 0000 1000
0 0000 1001
0 0000 1010
0 0000 1011
0 0000 1100
0 0000 1101
0 0000 1110
0 0000 1111
0 0001 0000
0 0001 0001
0 0001 0010
0 0001 0011
0 0001 0100
0 0001 0101
0 0001 0110
0 0001 0111
0 0001 1000
0 0001 1001
0 0001 1010
0 0001 1011
0 0001 1100
0 0001 1101
0 0001 1110
0 0001 1111
0 0010 0000
0 0010 0001
0 0010 0010
0 0010 0011
0 0010 0100
0 0010 0101
Error Description
Invalid input range selected (channel 3)
Invalid input range selected (channel 4)
Invalid input range selected (channel 5)
Invalid input range selected (channel 6)
Invalid input range selected (channel 7)
Invalid input range selected (channel 8)
Invalid input range selected (channel 9)
Invalid input range selected (channel 10)
Invalid input range selected (channel 11)
Invalid input range selected (channel 12)
Invalid input range selected (channel 13)
Invalid input range selected (channel 14)
Invalid input range selected (channel 15)
Invalid input filter selected (channel 0)
Invalid input filter selected (channel 1)
Invalid input filter selected (channel 2)
Invalid input filter selected (channel 3)
Invalid input filter selected (channel 4)
Invalid input filter selected (channel 5)
Invalid input filter selected (channel 6)
Invalid input filter selected (channel 7)
Invalid input filter selected (channel 8)
Invalid input filter selected (channel 9)
Invalid input filter selected (channel 10)
Invalid input filter selected (channel 11)
Invalid input filter selected (channel 12)
Invalid input filter selected (channel 13)
Invalid input filter selected (channel 14)
Invalid input filter selected (channel 15)
Invalid input format selected (channel 0)
Invalid input format selected (channel 1)
Invalid input format selected (channel 2)
Invalid input format selected (channel 3)
Invalid input format selected (channel 4)
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Extended Error Codes for Configuration Errors
Hex Equivalent
(1)
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
Module
Error Code
Binary
010
010
010
010
010
010
010
010
X412
X413
X414
X415
X416
X417
X40C
X40D
X40E
X40F
X410
X411
X404
X405
X406
X407
X408
X409
X40A
X40B
X41E
X41F
X420
X421
X422
X423
X424
X425
X418
X419
X41A
X41B
X41C
X41D
Extended Error
Information Code
Binary
0 0000 0100
0 0000 0101
0 0000 0110
0 0000 0111
0 0000 1000
0 0000 1001
0 0000 1010
0 0000 1011
0 0000 1100
0 0000 1101
0 0000 1110
0 0000 1111
0 0001 0000
0 0001 0001
0 0001 0010
0 0001 0011
0 0001 0100
0 0001 0101
0 0001 0110
0 0001 0111
0 0001 1000
0 0001 1001
0 0001 1010
0 0001 1011
0 0001 1100
0 0001 1101
0 0001 1110
0 0001 1111
0 0010 0000
0 0010 0001
0 0010 0010
0 0010 0011
0 0010 0100
0 0010 0101
Error Description
Invalid input range selected (channel 3)
Invalid input range selected (channel 4)
Invalid input range selected (channel 5)
Invalid input range selected (channel 6)
Invalid input range selected (channel 7)
Invalid input range selected (channel 8)
Invalid input range selected (channel 9)
Invalid input range selected (channel 10)
Invalid input range selected (channel 11)
Invalid input range selected (channel 12)
Invalid input range selected (channel 13)
Invalid input range selected (channel 14)
Invalid input range selected (channel 15)
Invalid input filter selected (channel 0)
Invalid input filter selected (channel 1)
Invalid input filter selected (channel 2)
Invalid input filter selected (channel 3)
Invalid input filter selected (channel 4)
Invalid input filter selected (channel 5)
Invalid input filter selected (channel 6)
Invalid input filter selected (channel 7)
Invalid input filter selected (channel 8)
Invalid input filter selected (channel 9)
Invalid input filter selected (channel 10)
Invalid input filter selected (channel 11)
Invalid input filter selected (channel 12)
Invalid input filter selected (channel 13)
Invalid input filter selected (channel 14)
Invalid input filter selected (channel 15)
Invalid input format selected (channel 0)
Invalid input format selected (channel 1)
Invalid input format selected (channel 2)
Invalid input format selected (channel 3)
Invalid input format selected (channel 4)
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Chapter 4 Module Diagnostics and Troubleshooting
Extended Error Codes for Configuration Errors
Hex Equivalent
(1)
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
Module
Error Code
Binary
010
010
010
010
010
010
010
010
X434
X435
X436
X437
X438
X439
X42E
X42F
X430
X431
X432
X433
X426
X427
X428
X429
X42A
X42B
X42C
X42D
X440
X441
X442
X443
X444
X445
X446
X447
X43A
X43B
X43C
X43D
X43E
X43F
Extended Error
Information Code
Binary
0 0010 0110
0 0010 0111
0 0010 1000
0 0010 1001
0 0010 1010
0 0010 1011
0 0010 1100
0 0010 1101
0 0010 1110
0 0010 1111
0 0011 0000
0 0011 0001
0 0011 0010
0 0011 0011
0 0011 0100
0 0011 0101
0 0011 0110
0 0011 0111
0 0011 1000
0 0011 1001
0 0011 1010
0 0011 1011
0 0011 1100
0 0011 1101
0 0011 1110
0 0011 1111
0 0100 0000
0 0100 0001
0 0100 0010
0 0100 0011
0 0100 0100
0 0100 0101
0 0100 0110
0 0100 0111
Error Description
Invalid input format selected (channel 5)
Invalid input format selected (channel 6)
Invalid input format selected (channel 7)
Invalid input format selected (channel 8)
Invalid input format selected (channel 9)
Invalid input format selected (channel 10)
Invalid input format selected (channel 11)
Invalid input format selected (channel 12)
Invalid input format selected (channel 13)
Invalid input format selected (channel 14)
Invalid input format selected (channel 15)
Alarm not enabled (channel 0)
Alarm not enabled (channel 1)
Alarm not enabled (channel 2)
Alarm not enabled (channel 3)
Alarm not enabled (channel 4)
Alarm not enabled (channel 5)
Alarm not enabled (channel 6)
Alarm not enabled (channel 7)
Alarm not enabled (channel 8)
Alarm not enabled (channel 9)
Alarm not enabled (channel 10)
Alarm not enabled (channel 11)
Alarm not enabled (channel 12)
Alarm not enabled (channel 13)
Alarm not enabled (channel 14)
Alarm not enabled (channel 15)
Invalid alarm data (channel 0)
Invalid alarm data (channel 1)
Invalid alarm data (channel 2)
Invalid alarm data (channel 3)
Invalid alarm data (channel 4)
Invalid alarm data (channel 5)
Invalid alarm data (channel 6)
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Module Diagnostics and Troubleshooting Chapter 4
Extended Error Codes for Configuration Errors
Hex Equivalent
X448
X449
X44A
X44B
X44C
X44D
X44E
X44F
X450
X451
(1) Module
Error Code
Binary
010
010
010
010
010
010
010
010
010
010
Extended Error
Information Code
Binary
0 0100 1000
0 0100 1001
0 0100 1010
0 0100 1011
0 0100 1100
0 0100 1101
0 0100 1110
0 0100 1111
0 0101 0000
0 0101 0001
Error Description
Invalid alarm data (channel 7)
Invalid alarm data (channel 8)
Invalid alarm data (channel 9)
Invalid alarm data (channel 10)
Invalid alarm data (channel 11)
Invalid alarm data (channel 12)
Invalid alarm data (channel 13)
Invalid alarm data (channel 14)
Invalid alarm data (channel 15)
Invalid Real Time Sample value
(1) X represents the Don’t Care digit. Module configuration error codes are typically presented in their Hex Equivalent by the programming software.
Invalid Input Range Selected
These error codes occur when the 4-bit input range code for the indicated channel is not one of the assigned input range codes for the module.
See 1769-IF16C Module: Bit Definitions for Input Range and Input
Data Configuration Words on page 38 or
module.
Invalid Input Filter Selected
These error codes occur when the 4-bit input filter code for the indicated channel is not one of the assigned input filter codes for the module.
See Bit Definitions for Channel Configuration Words on page 38
for details on the assigned input filter codes for the modules.
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Chapter 4 Module Diagnostics and Troubleshooting
Invalid Input Format Selected
These error codes occur when the 3-bit input format code for the indicated channel is not one of the assigned input format codes for the module.
See
1769-IF16C Module: Bit Definitions for Input Range and Input
Data Configuration Words on page 38
or
Definitions for Input Range and Input Data Configuration Words on page 39
for details on the assigned input format codes for each module.
Alarm Not Enabled
These error codes occur when a channel is enabled and the Alarm
Latch and/or the Enable Interrupt control bits for that channel are set but the Enable Alarm bit is not set.
See
Bit Definitions for Channel Configuration Words on page 38 for
details on setting the process alarm control bits for the modules.
Invalid Alarm Data
These error codes occur when the data entered for the high or low process alarms for a channel exceed the full-range limits of the channel. The full-range limits for a channel are a function of the input range and the input format selected for the channel.
See
Valid Input Data Word Formats/Ranges on page 42
for details on the full-range limits for each data range and data format.
These error codes may also occur if the deadband value entered for a channel is less than 0, or is greater than or equal to one-half times the channel’s high alarm value minus the channel’s low alarm value.
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Module Diagnostics and Troubleshooting Chapter 4
Invalid Real Time Sample Value
This error code occurs when the data entered for the Real Time
Sample value is less than 0, is greater than 5000 (decimal) or, if non-zero, is less than the calculated module update time.
See Real Time Sampling on page 43
for details on how the calculated module update time can affect the minimum allowed real time sample value.
Module Inhibit Function
CompactLogix controllers support the module inhibit function. See your controller manual for details.
Whenever the input modules are inhibited, the modules continue to provide information about changes at its inputs to the 1769 Compact
Bus Master (for example, a CompactLogix controller).
Contacting Rockwell
Automation
If you need to contact Rockwell Automation for assistance, please have the following information available:
•
A clear statement of the problem, including a description of what the system is actually doing. Note the state of the status indicators; also note input and output image words for the module.
•
List of remedies you have already tried
•
Controller type and firmware number (See the label on the controller.)
•
Hardware types in the system, including all I/O modules
•
Fault code, if the controller is faulted
See the back cover for contact information.
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Chapter 4 Module Diagnostics and Troubleshooting
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Appendix
A
Specifications
Introduction
Topic
Page
General Specifications
Attribute Value
Dimensions (HxWxD), approx.
118 mm x 87 mm x 35 mm (4.65 in. x 3.43 in. x 1.38 in.)
Height including mounting tabs is 138 mm (5.43 in.)
Shipping weight, approx. (with carton) 281 g (0.62 lb)
Temperature, storage
Temperature, operating
Operating humidity
Operating altitude
Vibration
Shock
Bus current draw, max
Heat dissipation
-40 °C…85 °C (-40 °F…185 °F)
0 °C…60 °C (32 °F…140 °F)
5% …95% non-condensing
2000 m (6561 ft)
Operating: 10…500 Hz, 5 g, 0.030 in. peak-to-peak
Operating: 30 g, 11 ms panel-mounted (20 g, 11 ms DIN rail-mounted)
Non-operating: 40 g panel-mounted (30 g DIN rail-mounted)
190 mA @ 5V DC
70 mA @ 24V DC
1769-IF16C: 4 total Watts
1769-IF16V: 2.4 total Watts
Module OK status indicator
(Watts per point plus the minimum Watts with all points energized.)
On: The module has power, has passed internal diagnostics, and is communicating over the bus.
Off: Any of the above is not true.
System power supply distance rating The module may not be more than 8 modules away from the system power supply.
Recommended cable
Vendor I.D. code
Product type code
Product code
Belden 8761 (shielded)
1
10
1769-IF16C: 47
1769-IF16V: 46
22 Input words
Output words
Configuration words
2
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59
Appendix A Specifications
Input Specifications
Attribute
Analog normal operating ranges
(1)
Full scale analog ranges
1769-IF16C
0…20 mA, 4…20 mA
1769-IF16V
±10V DC, 0 …10V DC, 0…5V DC, 1…5V DC
0…21 mA, 3.2…21 mA ±10.5V DC, -0.5…10.5V DC, -0.5…5.25V DC,
0.5…5.25V DC
Number of inputs
Converter type
Response speed per channel
Resolution, max
(2)
16 single-ended
Sigma Delta
Input filter and configuration dependent.
16 bits (unipolar)
15 bits plus sign (bipolar)
30V AC/30V DC
Rated working voltage
(3)
Common mode voltage range
(4)
Common mode rejection
Input impedance
Overall accuracy
(5)
Accuracy drift with temperature
Calibration
Non-linearity (in percent full scale)
Repeatability
(6)
Module error over full temperature range
(0…60 °C [32 °F…140 °F])
Channel diagnostics
Maximum overload at input terminals
(7)
Input group to bus isolation
±10V DC maximum per channel greater than 60 dB at 50 and 60 Hz with the 16 Hz filter selected, respectively.
249
Ω
Greater than 1 M
Ω
(typical)
0.5% full scale at 25 °C (77 °F) for 16 Hz, 50
Hz, and 60 Hz filters
0.35% full scale at 25 °C (77°F) for 16 Hz, 50
Hz, and 60 Hz filters
±0.0045% per °C
None required
±0.03%
±0.03% for 16 Hz filter
1.25% for 16 Hz filter
±0.003% per °C
None required
±0.03%
±0.06% for 16 Hz filter
1.0% for 16 Hz, 50 Hz, and 60 Hz filters
Over- or under-range by bit reporting, process alarms
±28 mA continuous, 7.0 V DC ±30V DC continuous, 0.03 mA
500V AC or 710V DC for 1 minute (qualification test)
30V AC/30V DC working voltage (IEC Class 2 reinforced insulation)
(1) The over- or under-range flag will come on when the normal operating range (over/under) is exceeded. The module will continue to convert the analog input up to the maximum full scale range. The flag automatically resets when within the normal operating range.
(2) Resolution is dependent upon your filter selection.
(3) Rated working voltage is the maximum continuous voltage that can be applied at the input terminal, including the input signal and the value that floats above ground potential (for example, 10V DC input signal and 20V DC potential above ground).
(4) For proper operation, the plus input terminals must be within ±10V DC of analog common.
(5) Includes offset, gain, non-linearity and repeatability error terms.
(6) Repeatability is the ability of the input module to register the same reading in successive measurements for the same input signal.
(7) Damage may occur to the input circuit if this value is exceeded.
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Certifications
Replacement Parts
Specifications Appendix A
Certification
Agency Certification
Hazardous Environment Class
Value
C-UL certified (under CSA C22.2 No. 142)
UL 508 listed
CE compliant for all applicable directives
Class I, Division 2, Hazardous Location, Groups A, B,
C, D (UL 1604, C-UL under CSA C22.2 No. 213)
Radiated and Conducted Emissions EN50081-2 Class A
Electrical /EMC: The module has passed testing at the following levels:
ESD Immunity (IEC1000-4-2) 4 kV contact, 8 kV air, 4 kV indirect
Radiated Immunity (IEC1000-4-3) 10 V/m, 80…1000 MHz, 80% amplitude modulation,
+900 MHz keyed carrier
Fast Transient Burst (IEC1000-4-4) 2 kV, 5 kHz
Surge Immunity (IEC1000-4-5)
Conducted Immunity (IEC1000-4-6)
1 kV galvanic gun
10V DC, 0.15…80 MHz
(1)
(1) Conducted Immunity frequency range may be 150 kHz…30 MHz if the Radiated Immunity frequency range is 30
MHz…1000 MHz.
The module has the following replacement parts:
•
Terminal block, catalog number 1769-RTBN18 (1 per kit)
•
Door, catalog number 1769-RD (2 per kit)
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Appendix A Specifications
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Appendix
B
Module Addressing and Configuration with
MicroLogix 1500 Controller
Introduction
Module Input Image
Topic
Configure Analog I/O Modules in a MicroLogix 1500 System
Page
This appendix examines the modules’ addressing scheme and describes module configuration using RSLogix 500 software and a
MicroLogix 1500 controller.
The modules’ input image file represents data words and status bits.
Input words 0…15 hold the input data that represents the value of the analog inputs for channels 0…15. These data words are valid only when the channel is enabled and there are no errors. Input words
17…21 hold the status bits. To receive valid status information, the channel must be enabled.
For example, to obtain the general status of channel 2 of the analog module located in slot 3, use address I:3.17/2.
Slot
Word
Bit
Input File Type
I:3.17/2
Element Delimiter
Word Delimiter
Bit Delimiter
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TIP
0 1 2
Slot Number
3
The end cap does not use a slot address.
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Appendix B Module Addressing and Configuration with MicroLogix 1500 Controller
Module Configuration File
The configuration file contains information that you use to define the way a specific channel functions. The configuration file is explained in more detail in
The configuration file is modified using the programming software configuration screen.
For an example of module configuration using RSLogix 500 software, see
Configure Analog I/O Modules in a MicroLogix 1500 System .
TIP
The RSLogix 500 configuration default is to disable each analog input channel. For improved analog input module performance, disable any unused channels.
Software Configuration Channel Defaults
Parameter
Enable/Disable Channel
Filter Selection
Input Range
Data Format
Default Setting
Disabled
60 Hz
1769-IF16C: 4…20 mA
1769-IF16V: ±10V DC
Raw/Proportional
Configure Analog I/O
Modules in a MicroLogix
1500 System
This example takes you through configuring your 1769 16-point analog input modules with RSLogix 500 programming software. This application example assumes your input modules are installed as expansion I/O in a MicroLogix 1500 system, and that RSLinx software is properly configured and a communication link has been established between the MicroLogix controller and RSLogix 500 software.
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Module Addressing and Configuration with MicroLogix 1500 Controller Appendix B
If you have a version of RSLogix 500 software that does not include the 1769-IF16C or 1769-IF16V modules, follow this procedure to configure your module.
1. Choose File>New to create a new project.
The Select Processor Type dialog box opens.
2. Type a name for the project in the Processor Name field.
3. Select Your MicroLogix 1500 controller from the list and click
OK.
4. Double-click I/O Configuration in the project tree to open the
I/O Configuration dialog box.
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Appendix B Module Addressing and Configuration with MicroLogix 1500 Controller
5. On the I/O Configuration dialog box, select the slot position where you want to add your module.
6. In the Current Cards Available list, double-click Other – Requires
I/O Card Type to add a generic module to the project in the indicated slot position.
For a 1769-IF16V module:
7. To add a module to the project, complete the fields on the Other
Type I/O Card dialog box as shown.
For a 1769-IF16C module:
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8. Click OK to add the generic module to the project.
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Module Addressing and Configuration with MicroLogix 1500 Controller Appendix B
9. Double-click the newly-added generic module.
10. Click the Generic Extra Data Config tab to access the
Configuration Data File.
11. Change the Radix to Hex/BCD to enter data in hexidecimal format in the Configuration Data file words.
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The Configuration Data File words are shown in order from zero to one less than the total number of words in the Configuration
Data File.
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Appendix B Module Addressing and Configuration with MicroLogix 1500 Controller
12. To enter data, double-click the configuration word, type the hexidecimal value, and click Apply.
13. When you are finished entering all the data, click Apply and then OK.
14. Download the project to the MicroLogix 1500 controller.
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Appendix
C
Configuration Using the RSLogix 5000 Generic
Profile for CompactLogix Controllers
Introduction
Add the Module to Your
Project
Topic
Add the Module to Your Project
Page
If the Add-on Profile for the 1769-IF16C or 1769-IF16V module is not yet available, follow this procedure to configure your module using a generic profile.
1. Open an existing project in RSLogix 5000 software or start a new project by choosing File>New.
2. If this is a new project select a CompactLogix controller, type a name for the controller, and click OK.
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Appendix C Configuration Using the RSLogix 5000 Generic Profile for CompactLogix Controllers
3. In the controller organizer, right-click CompactBus Local, and choose New Module.
70
4. Expand the Other group and select the 1769-MODULE Generic
Profile.
5. Click OK.
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Configuration Using the RSLogix 5000 Generic Profile for CompactLogix Controllers Appendix C
6. Type a Name for the module and an optional Description.
7. Select the slot number.
The slot number begins with the first available slot number, 1, and increments automatically for each subsequent Generic
Profile you configure.
8. Enter the Comm Format, Assembly Instance numbers and their associated sizes for each analog I/O module type into the
Generic Profile.
9. Click OK.
10. On the Connection tab, you can choose to inhibit the module or configure the module to fault if the connection fails.
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TIP
11. Click OK.
Refer to the Help screens in RSLogix 5000 software, under
Connection Tab Overview for a complete explanation of these features.
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Appendix C Configuration Using the RSLogix 5000 Generic Profile for CompactLogix Controllers
Configure Each I/O Module
Once you have created Generic Profiles for each analog I/O module in your system, you must then enter configuration information into the
Tag database that has been automatically created from the Generic
Profile information you entered for each of these modules. This configuration information is downloaded to each module at program download, at going to run, and at power cycle.
Tag addresses are automatically created for configured I/O modules.
All local I/O addresses are preceded by the word Local. These addresses have the following format:
•
Input Data: Local:
s.I
•
Output Data: Local:
s.O
•
Configuration Data: Local:
s.C
where
s is the slot number assigned the I/O modules in the
Generic Profiles.
1. Open the Controller Tag database by double-clicking Controller
Tags in the upper portion of the controller organizer.
2. Open the configuration tag for your module by clicking on the plus sign to the left of its configuration tag in the tag database.
3. To configure the input modules in slot 1, click the plus sign left of Local:1.C.
4. Click the plus sign to the left of Local:1.C.Data to reveal the 98 data words where the configuration data may be entered for the module.
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Appendix
D
Two’s Complement Binary Numbers
The controller memory stores 16-bit binary numbers. Two’s complement binary is used when performing mathematical calculations internal to the controller. Analog input values from the analog modules are returned to the controller in 16-bit two’s complement binary format. For positive numbers, the binary notation and two’s complement binary notation are identical.
As indicated in the figure on the next page, each position in the number has a decimal value, beginning at the right with 2
0 and ending at the left with 2
15
. Each position can be 0 or 1 in the controller memory. A 0 indicates a value of 0; a 1 indicates the decimal value of the position. The equivalent decimal value of the binary number is the sum of the position values.
Positive Decimal Values
The far left position is always 0 for positive values. This limits the maximum positive decimal value to 32,767 (all positions are 1 except the far left position).
Positive Decimal Values
16384
8192
4096
2048
1024
512
256
128
64
2
1
32767
32
16
8
4
0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
This position is always 0 for positive numbers.
EXAMPLE
0000 1001 0000 1110 = 2
11+
2
8+
2
3+
2
2+
2
1
=
2048+256+8+4+2 = 2318
0010 0011 0010 1000 = 2
13+
2
9+
2
8+
2
5+
2
3
=
8192+512+256+32+8 = 9000
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Appendix D Two’s Complement Binary Numbers
Negative Decimal Values
In two’s complement notation, the far left position is always 1 for negative values. The equivalent decimal value of the binary number is obtained by subtracting the value of the far left position, 32,768, from
the sum of the values of the other positions. In all positions are 1 and
the value is 32,767 - 32,768 = -1.
Negative Decimal Values
1
32767
4
2
512
256
128
64
32
16
8
16384
8192
4096
2048
1024
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
This position is always 1 for negative numbers.
EXAMPLE
1111 1000 0010 0011 = (2
14+
2
13+
2
12+
2
11+
2
5+
2
1+
2
0
) - 2
15
=
(16384+8192+4096+2048+32+2+1) - 32768 =
30755 - 32768 = -2013
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Glossary
Publication 1769-UM018A-EN-P - October 2008
The following terms and abbreviations are used throughout this manual. For definitions of terms not listed here refer to the
Allen-Bradley Industrial Automation Glossary, publication AG-7.1
.
A/D converter– Refers to the analog to digital converter inherent to the module. The converter produces a digital value whose magnitude is proportional to the magnitude of an analog input signal.
analog input module – A module that contains circuits that convert analog voltage or current input signals to digital values that can be manipulated by the controller.
attenuation – The reduction in the magnitude of a signal as it passes through a system.
bus connector – A 16-pin male and female connector that provides electrical interconnection between the modules.
channel – Refers to analog input or output interfaces available on the module’s terminal block. Each channel is configured for connection to a variable voltage or current input or output device, and has its own data and diagnostic status words.
channel update time – The time required for the module to sample and convert the input signals of one enabled input channel and update the channel data word.
common mode rejection – For analog inputs, the maximum level to which a common mode input voltage appears in the numerical value read by the controller, expressed in dB.
common mode rejection ratio – The ratio of a device’s differential voltage gain to common mode voltage gain. Expressed in dB, CMRR is a comparative measure of a device’s ability to reject interference caused by a voltage common to its input terminals relative to ground.
CMRR=20 Log
10 (V1/V2)
common mode voltage – For analog inputs, the voltage difference between the negative terminal and analog common during normal differential operation.
common mode voltage range – For analog inputs, the largest voltage difference allowed between either the positive or negative terminal and analog common during normal differential operation.
configuration word – Contains the channel configuration information needed by the module to configure and operate each channel.
dB – (decibel) A logarithmic measure of the ratio of two signal levels.
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Glossary
76
data word – A 16-bit integer that represents the value of the analog input channel. The channel data word is valid only when the channel is enabled and there are no channel errors. When the channel is disabled the channel data word is cleared (0).
digital filter – A low-pass filter incorporated into the A/D converter.
The digital filter provides very steep roll-off above it’s cut-off frequency, which provides high frequency noise rejection.
filter – A device that passes a signal or range of signals and eliminates all others.
filter frequency – (-3 dB frequency) The user-selectable frequency.
full scale – The magnitude of voltage or current over which normal operation is permitted.
full scale error – (gain error) The difference in slope between the actual and ideal analog transfer functions.
full scale range – (FSR) The difference between the maximum and minimum specified analog input values.
input image – The input from the module to the controller. The input image contains the module data words and status bits.
LSB – (Least Significant Bit) The bit that represents the smallest value within a string of bits. For analog modules, 16-bit, two’s complement binary codes are used in the I/O image in the card.
For analog inputs, the LSB is defined as the rightmost bit, bit 0, of the
16-bit field. For analog outputs, the three rightmost bits are not significant, and the LSB is defined as the third bit from the right, bit 2, of the 16-bit field.
linearity error – An analog input or output is composed of a series of voltage or current values corresponding to digital codes. For an ideal analog input or output, the values lie in a straight line spaced by a voltage or current corresponding to 1 LSB. Any deviation of the converted input or actual output from this line is the linearity error of the input or output. The linearity is expressed in percent of full scale
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Glossary input or output. See the variation from the straight line due to linearity error (exaggerated) in the example below.
Actual Transfer
Function
Ideal Transfer
number of significant bits – The power of two that represents the total number of completely different digital codes an analog signal can be converted into or generated from.
module scan time – same as module update time
module update time – The time required for the module to sample and convert the input signals of all enabled input channels and make the resulting data values available to the controller.
multiplexer – A switching system that allows several signals to share a common A/D converter.
normal mode rejection – (differential mode rejection) A logarithmic measure, in dB, of a device’s ability to reject noise signals between or among circuit signal conductors.
normal operating range – Input or output signals are within the configured range.
overall accuracy – The worst-case deviation of the output voltage or current from the ideal over the full output range is the overall accuracy. For inputs, the worst-case deviation of the digital representation of the input signal from the ideal over the full input range is the overall accuracy. this is expressed in percent of full scale.
Gain error, offset error, and linearity error all contribute to input and output channel accuracy.
output accuracy – The difference between the actual analog output value and what is expected, when a given digital code is applied to the d/a converter. Expressed as a ± percent of full scale. The error will include gain, offset and drift elements, and is defined at
25 °C (77 °F), and also over the full operating temperature range,
0…60 °C (0…140 °F).
repeatability – The closeness of agreement among repeated measurements of the same variable under the same conditions.
77
Glossary
resolution – The smallest detectable change in a measurement, typically expressed in engineering units (for example, 1 mV) or as a number of bits. For example a 12-bit system has 4096 possible output states. It can therefore measure 1 part in 4096.
status word – Contains status information about the channel’s current configuration and operational state. You can use this information in your ladder program to determine whether the channel data word is valid.
step response time – For inputs, this is the time required for the channel data word signal to reach a specified percentage of its expected final value, given a large step change in the input signal.
update time – See module update time.
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Index
Numerics
1769-ADN
user manual
A
A/D
definition
abbreviations
alarm
deadband
process
analog input module
definition
attenuation
definition
B
bus connector
definition
locking
bus interface
C
channel
definition
diagnostics
status LED
step response
channel update time
definition
CMRR. See common mode rejection ratio
common mode rejection
definition
common mode rejection ratio
definition
common mode voltage
definition
common mode voltage range
definition
common mode voltage rating
configuration errors
configuration word
1769-IF4
definition
contacting Rockwell Automation
cut-off frequency
D
data word
definition
dB
definition
definition of terms
DeviceNet adapter
user manual publication number
differential mode rejection. See normal mode rejection.
digital filter
definition
DIN rail mounting
E
electrical noise
end cap terminator
error codes
error definitions
errors
configuration
critical
extended error information field
hardware
module error field
non-critical
extended error codes
extended error information field
F
fault condition
at power-up
filter
definition
filter frequency
and channel step response
definition
finger-safe terminal block
frequency
cut-off frequency
full scale
definition
full scale error
definition
full scale range
definition
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G
gain error. See full scale error.
generic profile
configuration example
grounding
H
hardware errors
heat considerations
I
inhibit function
input data formats
engineering units
percent range
raw/proportional data
scaled for PID
valid formats/ranges
input filter selection
input image
definition
input module
channel configuration
enable channel
input module status
general status bits
over-range flag bits
under-range flag bits
input type/range selection
installation
grounding
heat and noise considerations
L
least significant bit. See LSB.
linearity error
LSB
definition
definition
M
module error field
module inhibit function
module scan time
definition
module update time
definition
mounting
multiplexer
definition
N
negative decimal values
noise rejection
normal mode rejection
definition
number of significant bits
definition
O
open-circuit detection
operation
system
out-of-range detection
over-range flag bits
under-range flag bits
overall accuracy
definition
over-range flag bits
P
panel mounting
-
positive decimal values
power-up diagnostics
power-up sequence
process alarms
1769-IF8 modules
program alteration
R
removing terminal block
replacing a module
resolution
definition
RSLogix 500 software
configuration example
RSLogix 5000 software
configuration example
S
safety circuits
scan time
spacing
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Index
status word
definition
step response
step response time
definition
system operation
T
terminal block
removing
wiring
terminal screw torque
troubleshooting
safety considerations
two’s complement binary numbers
U
under-range flag bits
update time. See channel update time or module update time.
update time. See module update time.
W
wire size
wiring
module
routing considerations
terminal block
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Index
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Publication 1769-UM018A-EN-P - October 2008
Rockwell Automation
Support
Rockwell Automation provides technical information on the Web to assist you in using its products. At http://support.rockwellautomation.com
, you can find technical manuals, a knowledge base of FAQs, technical and application notes, sample code and links to software service packs, and a MySupport feature that you can customize to make the best use of these tools.
For an additional level of technical phone support for installation, configuration, and troubleshooting, we offer TechConnect support programs.
For more information, contact your local distributor or Rockwell Automation representative, or visit http://support.rockwellautomation.com
.
Installation Assistance
If you experience a problem within the first 24 hours of installation, please review the information that's contained in this manual. You can also contact a special Customer Support number for initial help in getting your product up and running.
United States
Outside United
States
1.440.646.3434
Monday – Friday, 8 a.m. – 5 p.m. EST
Please contact your local Rockwell Automation representative for any technical support issues.
New Product Satisfaction Return
Rockwell Automation tests all of its products to ensure that they are fully operational when shipped from the manufacturing facility. However, if your product is not functioning and needs to be returned, follow these procedures.
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Outside United
States
Contact your distributor. You must provide a Customer Support case number (call the phone number above to obtain one) to your distributor in order to complete the return process.
Please contact your local Rockwell Automation representative for the return procedure.
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84
Copyright © 2008 Rockwell Automation, Inc. All rights reserved. Printed in the U.S.A.
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Key features
- Compact High-density design
- Supports various analog input types and ranges
- Provides digital storage for analog data
- Communicates with CompactLogix or MicroLogix 1500 controllers
- Offers configuration options for data formats
- Supports process alarms and status monitoring
