Creative DE5621 Instruction manual

accQcomm™
Interface Module
Installation and Operation Guide
Part #69-7503-015 of Assembly #60-7504-015
Copyright © 2007. All rights reserved, Teledyne Isco.
Revision D, February 2012.
Foreword
This instruction manual is designed to help you gain a thorough understanding of the
operation of the equipment. Teledyne Isco recommends that you read this manual
completely before placing the equipment in service.
Although Teledyne Isco designs reliability into all equipment, there is always the possibility of a malfunction. This manual may help in diagnosing and repairing the malfunction.
If the problem persists, call or e-mail the Teledyne Isco Technical Service Department
for assistance. Simple difficulties can often be diagnosed over the phone.
If it is necessary to return the equipment to the factory for service, please follow the
shipping instructions provided by the Customer Service Department, including the
use of the Return Authorization Number specified. Be sure to include a note
describing the malfunction. This will aid in the prompt repair and return of the
equipment.
Teledyne Isco welcomes suggestions that would improve the information presented in
this manual or enhance the operation of the equipment itself.
Teledyne Isco is continually improving its products and reserves the right to
change product specifications, replacement parts, schematics, and instructions without notice.
Contact Information
Customer Service
Phone:
(800) 228-4373
(USA, Canada, Mexico)
(402) 464-0231
(Outside North America)
Fax:
(402) 465-3022
Email:
IscoCSR@teledyne.com
Technical Support
Phone:
Email:
(800) 775-2965
(Analytical)
(866) 298-6174
(Samplers and Flow Meters)
IscoService@teledyne.com
Return equipment to: 4700 Superior Street, Lincoln, NE 68504-1398
Other Correspondence
Mail to:
P.O. Box 82531, Lincoln, NE 68501-2531
Email:
IscoInfo@teledyne.com
Web site:
www.isco.com
Revised March 17, 2009
accQcomm Interface Module
Table of Contents
Section 1 Introduction
1.1
1.2
1.3
1.4
1.5
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cables and Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unpacking Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-1
1-2
1-2
1-4
1-5
Section 2 Installation and Operation
2.1 Programming. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.1.1 Configuration Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.1.2 Connecting Without Configuration Software . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.2 Site Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2.2.1 LCD Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2.2.2 Display Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2.2.3 Totalizers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2.2.4 Instruments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
2.2.5 Error Handling and Timeouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
2.3 Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
2.3.1 Port Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
2.3.2 Network Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
2.3.3 Modem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
2.4 Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
2.5 Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
2.5.1 MODBUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
2.5.2 Analog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
2.6 Smoothing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
2.6.1 TCF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
2.6.2 “Don’t Smooth” Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
2.6.3 Zero Value for Small Flows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
2.6.4 Bad Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
2.7 Alarm and Output Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
2.8 Viewing Data Via Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
2.9 Default System Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
2.10 Cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
Appendix A Commands, Constants, and Registers
A.1 Program Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
A.2 Data Type Constants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-7
A.3 MODBUS Register Locations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8
A.3.1 Explanation of an Example Output Reading . . . . . . . . . . . . . . . . . . . . . . . . A-9
A.3.2 Explanation of Volume Interval Registers . . . . . . . . . . . . . . . . . . . . . . . . . A-9
Appendix B Equipment, Accessories, and Replacement Parts
B.1 Equipment and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
B.2 Replacement Parts Diagrams and Listings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3
v
accQcomm Interface Module
Table of Contents
List of Figures
1-1 accQcomm connectors and cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
1-2 Power input wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2-1 Site tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2-2 Select units of measure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2-3 Reset totalizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
2-4 Instrument settings and error counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
2-5 Communication tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
2-6 Activate modem function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
2-7 Alarms tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
2-8 Output tab: MODBUS settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
2-9 Output tab: Analog Output settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
2-10 Analog output test dialog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
2-11 Smoothing tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
2-12 Summary page in Web view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
2-13 Detailed view of instrument data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
2-14 Viewing historical site data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
2-15 accQcomm reset button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
List of Tables
1-1
2-1
2-2
A-1
A-2
A-3
vi
accQcomm Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Totalizer Rollover Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Alarm and Output Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
accQcomm Program Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Data Type Constants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-7
MODBUS Register Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-10
accQcomm Interface Module
Section 1 Introduction
1.1 Overview
The accQcomm Interface Module is an optional component of an
H-ADFM/ADFM/accQmin Velocity Profiler flow monitoring
system. The module accepts RS-232/RS422 serial data from up to
three ADFM/accQmin flow meters and converts the data, typically measured flow, level, and velocity, to industry standard
MODBUS protocol, or an analog current loop, with programmable format and scaling.
The module provides eight alarm outputs based on user-programmed conditions.
Negative system power
Chassis ground
Note
Negative System Power must be connected to Chassis
Ground, and should be Earth-Grounded.
1-1
accQcomm Interface Module
Section 1 Introduction
1.2 Outputs
The accQcomm has an array of outputs for different data types,
summarized below. For detailed information about each output
and its configuration, see section 2, Installation and Operation.
LCD
The LCD on the front of the unit can be configured to display
System Information (device name, firmware, and date/time),
data output for each flow meter (flow, totalized flow, velocity,
level, and temperature in user selectable units), and 4-20 mA
outputs.
LED indicators
The LED lights indicate the accQcomm’s activity. They signal
power, the presence of alarm conditions, serial transmit/receive,
and Ethernet activity.
4-20 mA outputs
The accQcomm has up to four 4-20mA analog outputs (specified
at time of order). The analog outputs can be assigned to any data
type from one to three connected flow meters. Sums and/or
averages can be selected as an analog output.
Relay alarms
The accQcomm has eight programmable relays for triggering
alarms based on user-defined conditions.
Web viewing
Data from all connected flow meters can be viewed on the Web by
logging on to the fixed IP address of your accQcomm module.
MODBUS protocol
MODBUS communication provides a standard protocol that can
be used to retrieve real-time data from one to three connected
Isco flow meters. The data can be sent to a central computer for
display, data collection, or process control. The accQcomm can
send MODBUS data using either the RS232 or RS485 connector
on the front panel.
MODBUS is a simple command/response mechanism to read
from and write to specific memory locations called registers. A
register is a holding place for a piece of digital information within
the equipment. A table of MODBUS register addresses and their
data types is provided in Appendix A, Table A-3.
The Isco ADFM flow meters can use either MODBUS ASCII or
RTU protocol.
1.3 Cables and
Connectors
Figure 1-1 shows the locations and functions of all of the
accQcomm’s connectors, as well as Isco part numbers for the
appropriate connecting cables where used.
Note
Negative System Power must be connected to Chassis
Ground, and should be Earth-Grounded.
1-2
accQcomm Interface Module
Section 1 Introduction
Serial
RS422
Flow
Meter
1
Serial
RS232
Serial
RS422
Flow
Meter
2
Serial
RS232
Serial
RS422
Flow
Meter
3
Serial
RS232
Modbus
Output
RS485
Modbus
Output
RS232
LCD
Negative SYSTEM POWER must be
connected to Chassis-Ground & Earth-Grounded.
Computer
Modem
cable
Alarm Outputs (8)
cables
60-75:04-016 - console
60-7004-057 - ADFM/accQmin
60-7004-027 - canister
cable 69-7504-020
Ethernet
(Input inductor recommended)
Power
12 - 24VDC
cable
480-7999-02
4-20 mA Outputs
(4)
Figure 1-1 accQcomm connectors and cables
Note
Negative System Power must be connected to Chassis
Ground as shown below in Figure 1-2, and should be
Earth-Grounded:
Figure 1-2 Power input wiring
1-3
accQcomm Interface Module
Section 1 Introduction
1.4 Unpacking
Instructions
Teledyne Isco
Customer Service Dept.
P.O. Box 82531
Lincoln, NE 68501 USA
Phone: (800) 228-4373
Outside USA & Canada call:
(402) 464-0231
FAX:
(402) 465-3022
E-mail: IscoInfo@teledyne.com
Web site: www.isco.com
1-4
When the system arrives, inspect the outside packing for any
damage. When you unpack the system, check the items against
the packing list. If any parts are missing, contact the delivery
company and Teledyne Isco’s Customer Service Department.
When you report missing parts, please indicate them by part
number.
It is recommended that you retain the shipping carton as it can
be used to ship the unit in the event you need to transport it. If
there is damage, contact the delivery company and Teledyne Isco
(or its authorized representative) immediately.
CAUTION
If there is any evidence that any items may have been damaged in shipping, do not attempt to install the unit. Please contact Teledyne Isco (or its agent) for advice.
accQcomm Interface Module
Section 1 Introduction
1.5 Technical
Specifications
Table 1-1 lists the technical specifications for the accQcomm.
Table 1-1 accQcomm Technical Specifications
Physical
Dimensions (H x W x D)
2.75 in (70 mm) x 10.5 in (267 mm) x 5.62 in (143 mm)
Weight
2.06 pounds (.95 kg)
Material
Polycarbonate
Enclosure
NEMA 1, IP20
Power Requirements
9 to 30 VDC
Negative System Power must be
connected to Chassis Ground, and
should be Earth-Grounded.
@ 12VDC: Typically < 475 mA, max 600mA
@ 24VDC: Typically < 250 mA, max 300mA
Temperature
-4 to 158° F (-20 to 70° C), operating and storage
Display Type
Backlit 1” x 3” LCD, 4 lines, 80 characters
Communication
Analog Output Channels
Number of channels
0 to 4
Output range
4-20 mA
Maximum load
600 
Isolation: Output galvanically isolated from DC power, from the network,
and from other outputs
Accuracy:
Integral nonlinearity: ±0.012% max
Offset (0 mA or 4 mA) (Ta = 25°C): ±0.05%max
Offset Drift: 50 ppm/°C max
Total Output Error (20 mA or 24 mA)(Ta = 25°C): ±0.15% max
Total Output Error Drift: 50 ppm/°C max
PSRR: 10 µA/V max
Resolution: 16 bits, 244 µA, 0.0015% of 16 mA span
Relay Alarm Outputs
Serial Data Communication
Number of alarms
8
Type
Normally open, solid state
Maximum contact resistance 35 
Sampler Pacing
Contact closure pulses are 100ms long,
separated by 100ms pause
Total ports
Input type RS232
Input type RS422
Output type MODBUS 232
Output type MODBUS 485
MODBUS protocols
8
3
3
1
1
DB9 Connector
Terminal Strip
DB9 Connector
Terminal Strip
ASCII, RTU
Setup and Data Retrieval
PC compatible computer running accQcomm Configuration Software, or
utility software such as HyperTerminal
Ethernet Communication
Ethernet port (Input inductor recommended: Steward #28B2024-0A0 or
equivalent)
Modem
External connection
Communication Speeds Supported
1200, 2400, 4800, 9600, 12000, 19200, 38400, 57600 (default) bps
RS232 serial connector
1-5
accQcomm Interface Module
Section 1 Introduction
1-6
accQcomm Interface Module
Section 2 Installation and Operation
2.1 Programming
2.1.1 Configuration
Software
The accQcomm’s configuration software is a simple program for
managing your site files. Install the program by inserting the
CD-ROM in the appropriate drive on your PC. Run the application accQcomConfigSetupV1.00.exe.
Connect your PC to the accQcomm’s serial configuration port on
the front of the unit, or connect to the Ethernet port on the back,
and open the accQcomm configuration software.
Tabs
The five tabs, Site, Communication, Alarms, and Output, and
Smoothing are used to set up the site and configure the transfer
of data.
Menu
File – Open an existing site file by selecting File > Open Configuration. Save a new site file by selecting File > Save Configuration. The file type will end in .cfg.
Program – Use Program > Send Configuration to open the
Connect window and save new program settings to the
accQcomm. To set the accQcomm time clock or zero the totalizer,
check the box(es) next to these options. Click Program to save the
new settings. The unit will be reinitiated with the new settings.
Use Program > Read Configuration to load the accQcomm’s
program settings into the current site file.
Software – Install updates to the accQcomm’s software by
selecting Software > Flash Software.
2.1.2 Connecting Without
Configuration
Software
Teledyne Isco recommends connecting to the accQcomm with the
configuration software provided. However, if you need to connect
to the accQcomm using a basic utility program, such as HyperTerminal®, Table A-1 in Appendix A contains all accQcomm
commands and their definitions.
Connect your PC to the accQcomm’s serial configuration port on
the front of the unit (at 57,600 bps, 8 bits, no parity, 1 stop bit, no
flow control), or Ethernet port on the back, and use keystrokes
CTRL + D.
Once connection is established, the accQcomm will return the
header [ENTERED CONTROL MODE], followed by the prompt,
?>.
All settings are programmable with this method, but commands
must be entered into the computer and saved to the unit’s flash
memory. After saving the new program with the SS command,
restart the accQcomm with the SR command. The new program
will be applied upon restart.
2-1
accQcomm Interface Module
Section 2 Installation and Operation
2.2 Site Setup
Begin creating a site file for the flow meter(s) connected to the
accQcomm by clicking the Site tab (Figure 2-1) and enter the
desired Site Name.
Figure 2-1 Site tab
2.2.1 LCD Display
2-2
The accQcomm’s LCD can be configured to display several different types of information. These include: System Information
(device name, firmware, and date/time), data output for each flow
meter (flow, velocity, level, temperature, and volume, in user
selectable units), 4-20 mA outputs, and totalized flow. These displays, except for System Information, can be switched on or off,
and will cycle through all displayed parameters every 3 to 10
seconds, as set by dragging the slider bar.
accQcomm Interface Module
Section 2 Installation and Operation
2.2.2 Display Units
In the Display Units box (Figure 2-2), click the pull-down menus
to select the units of measure the accQcomm will use for displaying measured Flow, Velocity, Depth, Temperature, and
Volume.
Figure 2-2 Select units of measure
2.2.3 Totalizers
Flow volume can be totalized separately for each connected
instrument. Each totalizer will roll over when an ensemble is
received, or when volumetric units of measure are changed.
The totalizer rolls over to zero when it reaches a certain value;
this value is determined by the units of measure for volume, as
shown below:
Table 2-1 Totalizer Rollover Values
Units of Measure
Rollover Limit
Liters
1,000,000,000
Cubic Meters
100,000,000
Megaliters
100,000
Gallons
1,000,000,000
KGallons
10,000,000
Million Gallons
10,000
Cubic Feet
1,000,000,000
Acre Feet
100,000
Note that an alarm to indicate when a rollover has occurred can
be set by using the rollover value as an alarm for Totalized Flow
(Refer to Alarms, on page 2-8).
2-3
accQcomm Interface Module
Section 2 Installation and Operation
Totalizer Mode
There are three selectable totalizer modes:
Net – Total flow includes both positive and negative (forward
and reverse) flows.
Positive – Total positive (forward) flow; negative (reverse) flow
not included.
Negative – Total negative (reverse) flow; positive (forward) flow
not included.
The selected totalizer mode applies to all connected instruments.
When the mode is changed, all totalizers are reset to zero.
Resetting the Totalizer
To reset the totalizer to zero, first select Program > Send Configuration...
In the Connect screen, check the Zero totalizer box and click
Program.
Figure 2-3 Reset totalizer
A totalizer reset can also be performed via HyperTerminal with
the SZ command (refer to Table A-1).
HADFM Totalizer
Limitations
2.2.4 Instruments
2-4
The totalizer for a connected HADFM will always totalize net
flow, regardless of the selected mode. This does not affect totalizers for any other connected instruments. The accQcomm cannot
zero an HADFM totalizer. Whenever the HADFM is reset, the
accQcomm’s corresponding totalizer will also reset.
By default, only Instrument 1 will be set as active when you click
the Site tab; the other two will be set to Inactive. Use the
pull-down menus for Type to select between Inactive, ADFM,
accQmin, or HADFM for inputs 1, 2, and 3, and enter an identifying name for each instrument.
accQcomm Interface Module
Section 2 Installation and Operation
Instruments 2 and 3, when first made active, will have the
default name of INACTIVE, which can be deleted and replaced
with new names.
Figure 2-4 Instrument settings and error counter
2.2.5 Error Handling and
Timeouts
A timeout (Figure 2-4) signifies that the accQcomm is not
receiving readings in the proper format from the configured
instrument within the specified time period (default setting 90
seconds). If a timeout occurs, the accQcomm will continue to
display the last valid reading, incrementing the Timeout counter,
and continue to increment the counter with each consecutive
Timeout. If the “Clear all data” box is checked, when the counter
exceeds the specified number of timeouts, all data for that
instrument will be cleared, and the accQcomm display will read
NO DATA until the next valid reading, at which time the counter
will reset to zero.
If the accQcomm receives readings in the proper format and
within the specified time period, but one or more values within
the reading are marked bad, no Timeout will occur. The bad
values are represented on the display with two dashes (– –). See
section 2.6.4 for more information about bad data.
2-5
accQcomm Interface Module
Section 2 Installation and Operation
2.3 Communication
Click the Communication tab to select the appropriate communication settings for the PC connection and each flow meter.
Figure 2-5 Communication tab
Note
Record your Port and Network settings for future use. If
you attempt to connect with the accQcomm without the correct
configuration baud rate or IP address, you will be unable to
communicate with the unit unless you correct the baud rate or
reset the module to system default settings (see Section 2.9).
2.3.1 Port Settings
2-6
The default baud rate for the accQcomm’s configuration port is
57600 bps. The default baud rate for the instruments is 9600 bps.
The accQcomm and flow meter baud rates must match for the
instruments to communicate with each other.
accQcomm Interface Module
Section 2 Installation and Operation
Flow Control can be used when the accQcomm is communicating
through a modem, to regulate data transmission so that when
the buffer is full, data flow will halt until enough data has been
read to continue transmitting. To activate this function, check
the box next to Flow Control.
2.3.2 Network Settings
In the Address box, enter the IP address you will use to access
your flow data via the Internet, as well as the Subnet mask.
The default IP address is 192.168.1.10, and the Subnet is
255.255.255.0. If you change the IP address, your Subnet may
need to be adjusted.
The IP address is static, meaning it does not change, and must be
manually entered into the Web browser each time you log on (see
Section 2.8 for more information on viewing data on the Web).
To prevent excessive network EMI from interfering with the
accQcomm’s operation, Teledyne Isco recommends placing an
inductor on the accQcomm’s incoming line when connecting via
the Ethernet port. The inductor type recommended is the
Steward #28B2024-0A0, or equivalent, with 2 wire wraps (see
Appendix A for Isco part number).
2.3.3 Modem
Connect the modem to the MODEM 9-pin connector on the front of
the accQcomm. To begin using the modem, check the Use Modem
box at the bottom left of the Communication screen and enter the
command string to initialize the modem. All parameters must be
entered on one line with no spaces.
Note
The command string is sent to the modem at startup. For the
modem to be initialized, you must cycle power on the accQcomm.
In the example below, the initialization string instructs the
modem to auto-answer after two rings, and disables DTR line
checking and Flow Control:
Figure 2-6 Activate modem function
If Flow Control is desired, K0 should be replaced by K1.
Note
Teledyne Isco recommends using Creative Labs Modem
Blaster V.92 Serial Modem #DE5621. The sample initialization
string shown above is based on this modem, but may also
work for other modems. If problems occur when using another
modem, the string may need modification.
2-7
accQcomm Interface Module
Section 2 Installation and Operation
2.4 Alarms
The accQcomm has eight programmable relays for triggering
alarms based on one or two user-defined conditions (i.e., flow
rate, level, velocity, etc.). To program alarms, click the Alarms
tab.
Define the conditions by using the pull-down menus to select the
instrument (flow meter), parameter (level, flow, etc.), comparator
(>, <, ==, >=,<=), and value (Figure 2-7). For a list of all available
alarm parameters, and their definitions, see Table 2-2.
To use two conditions to activate an alarm, use the pull-down
menu between Condition 1 and Condition 2 to select AND or OR.
To use only Condition 1, select N/A.
To set an alarm to remain activated regardless of changes in
data, check the “Latching when triggered” box. To clear an alarm,
select the alarm and click the Clear Selected button.
In the example in Figure 2-7, an alarm will be permanently triggered if the flow reverses.
Figure 2-7 Alarms tab
2-8
accQcomm Interface Module
Section 2 Installation and Operation
When you highlight the desired alarm number in the Current
Alarms window and click Set Alarm Condition, the alarm
appears beside its number.
To remove an alarm condition, highlight the alarm and click
Clear Selected.
Note
For the accQmin flow meter, the accQcomm displays and
transmits secondary level data at 10X the actual value when
using Standard Data format. This should be considered when
setting up alarm conditions and analog outputs. This will not
occur with an accQmin using Reduced Data format.
Sampler Pacing
The alarm function can signal a connected sampler to take a
sample every time a specified volume of flow is reached.
In the Sampler Pulse box, select the instrument and enter the
volume at which to send the pulse. When you highlight the
desired alarm number in the Current Alarms window and click
Set Pulse Volume, the setting appears as an alarm.
A separate sampler pulse output can be set for each connected
instrument, if needed.
2.5 Outputs
The accQcomm can make the flow meter data available in
several formats. Data output is configured on the Output tab.
From the Output Type pull-down menu, select either MODBUS
or Analog (4-20mA).
2.5.1 MODBUS
Selecting MODBUS from the pull-down menu activates the
MODBUS settings at the bottom of the screen. Select ASCII or
RTU protocol from the pull-down menu, as well as appropriate
serial data settings.
Internal units of measure for MODBUS cannot be changed.
Parameter values will always be output as follows:
Flow
cc/sec
Area
cm2
Temp
°C
Velocity
mm/sec
Depth
mm
Volume
m3
Note
For the accQmin flow meter, the accQcomm displays and
transmits secondary level data at 10X the actual value when
using Standard Data format. This should be considered when
setting up alarm conditions and analog outputs. This will not
occur with an accQmin using Reduced Data format.
2-9
accQcomm Interface Module
Section 2 Installation and Operation
Alternate MODBUS Port
Although ordinarily only MODBUS or Analog output (see next
section) can be selected as the Output Type (refer to Figure 2-8
on the following page), an alternate MODBUS port can be used
at the same time as Analog Output.
To activate and configure this port while the Output Type is set
for Analog, check the box next to “Use alternate MODBUS port.”
Note that enabling this alternate port will disable instrument #2.
Figure 2-8 Output tab: MODBUS settings
2.5.2 Analog
Selecting Analog (4-20mA) from the pull-down menu activates
the Analog Output and Advanced Analog Calculations settings.
One to four analog outputs can be assigned to any data type from
one to three connected flow meters, including the sums and
averages of readings from all active connected instruments. For a
listing of all available analog output data types, and their definitions, see Table 2-2.
2-10
accQcomm Interface Module
Section 2 Installation and Operation
Ranges are user-defined using the 4mA and 20mA boxes.
Parameter values will be displayed using the units entered in the
Display Units box on the Site tab (see Section 2.2.2).
Only the analog outputs installed at the factory will be operational when shipped. If additional outputs are required, call
Teledyne Isco. Regardless of how many analog outputs are
installed in your accQcomm, each channel selection will appear
on the screen as active until you deactivate it by deselecting its
checkbox. When this setting is saved to the accQcomm, the LCD
will indicate that this analog channel has been turned off. For
example, if Channel 3 were deactivated, the accQcomm screen
would display:
#1: x.xx mA
#2: x.xx mA
#3: off
#4: x.xx mA
Check box to use both MODBUS
and Analog outputs.
Figure 2-9 Output tab: Analog Output settings
2-11
accQcomm Interface Module
Section 2 Installation and Operation
Note
For the accQmin flow meter, the accQcomm displays and
transmits secondary level data at 10X the actual value when
using Standard Data format. This should be considered when
setting up alarm conditions and analog outputs. This will not
occur with an accQmin using Reduced Data format.
Testing Analog Outputs
To verify that the analog outputs are functioning properly.
1. Attach the leads of a current meter to the output circuit to
be tested.
2. Click Test Analog Outputs to open the test dialog.
Figure 2-10 Analog output test dialog
3. Select a COM port and baud rate for communication.
4. Select the channel and enter a current value in mA.
5. Click Test Output.
The measured current value should match the set value,
until or unless changed by another event or action.
2-12
accQcomm Interface Module
Section 2 Installation and Operation
2.6 Smoothing
The smoothing function stabilizes data outputs by disregarding
brief spikes in the condition being monitored.
The Smoothing tab allows you to control several aspects of your
data output, including the degree of smoothing, the smoothing
cutoff point, minimum smoothed flow value, and smoothing on
output display.
Figure 2-11 Smoothing tab
2.6.1 TCF
TCF (Time Constant Factor) refers to a coefficient between 0 and
1 that the accQcomm applies to each new data reading, giving
the output a continuity from one reading to the next. Just use the
slider under Flow, Velocity, or Depth to adjust the amount of
smoothing for each parameter.
2-13
accQcomm Interface Module
Section 2 Installation and Operation
When selecting the TCF, keep in mind that the system’s response
to any change within the specified range (see sections 2.6.2 and
2.6.3) is affected by smoothing. The data output becomes more
uniform with smaller TCF settings, but this also lengthens the
system’s response time to changes in conditions.
If you have questions regarding the smoothing function and
selection of the Time Constant Factor, contact Teledyne Isco at
(866) 298-6174.
2.6.2 “Don’t Smooth”
Function
This function deactivates smoothing in the event of an abrupt
change in flow rate within a measurement interval. A sudden
rise or fall in flow at or above this value will disable smoothing
for that reading, allowing the accQcomm to accurately represent
this change in flow before resuming the smoothing function.
Enter the desired value for “Don’t smooth changes over____”. The
units of measure will reflect those you selected on the Site tab.
2.6.3 Zero Value for Small
Flows
In order to avoid continued data output when the flow values are
minimal, enter the desired minimum values for “Force to zero if
less than____”. When a measured value falls below this point, the
output will be set to zero.
This function is useful, for instance, with overflow or storm applications where normal condition flows are low to nonexistent.
The units of measure will reflect those you selected on the Site
tab.
2.6.4 Bad Data
The accQcomm maintains a separate Bad Data counter for each
instrument and smoothed data type. The counter increments
each time a reading with flow, velocity, depth, or temperature
value(s) marked as bad is received by the accQcomm.
Non-smoothed data types with values marked bad are represented on the display with two dashes (– –).
Smoothed data types will continue to output their last good value
when a value marked bad is received. If the “Display smoothed...”
box is checked, smoothed data will also be shown on the display.
With the “Clear smoothed values” box checked, if the Bad Data
counter for a smoothed data type reaches or exceeds the specified
number of consecutive bad readings, the smoothed value is
cleared and the value will be represented on the display with two
dashes (– –).
2-14
accQcomm Interface Module
Section 2 Installation and Operation
2.7 Alarm and Output
Parameters
Table 2-2 contains the parameters shown in the pull-down menus
for selecting alarm and output functions.
Table 2-2 Alarm and Output Parameters
Alarm
4-20
Output
Flow rate calculated from cross-sectional velocities


Q Manning
Flow rate calculated with Manning formula, for flow depths that fall below
the velocity profiling range


Smoothed flow
Flow data with smoothing applied.


Totalized flow
Total flow, including both positive and negative flow.

Name
Function
Flow (Q Main)
Velocity (Raw Velocity) Average of individual point velocities from all velocity beams.


Avg. Velocity
Flow divided by cross-sectional area


Smoothed Velocity
Velocity data with smoothing applied.


Main Depth (Level)
This is the depth used for flow calculation, after comparing the readings
from the primary depth sensor with the readings from the secondary depth
sensor.


Ult. Depth
Liquid level from ultrasonic depth sensor


Sec. Depth
Liquid level from secondary depth sensor


Smoothed Depth
Level data with smoothing applied.


Sensor Temperature
Temperature in stream


Voltage
Input voltage


Built-in Test
A code ‘0’ indicates that there are no problems detected.

Average Flow
Average flow reading of all active instruments


Average Velocity
Average velocity reading of all active instruments


Average Depth
Average liquid level reading of all active instruments


Data Timeouts:
Number of timeouts on counter

Average Temperature
Average temperature reading of all active instruments


Summed Flow
Summed flow reading of all active instruments


Bad Flow Count
Number of consecutive readings with a bad value

Bad Velocity Count
Number of consecutive readings with a bad value

Bad Depth Count
Number of consecutive readings with a bad value

2-15
accQcomm Interface Module
Section 2 Installation and Operation
2.8 Viewing Data Via
Ethernet
To view your flow data via LAN or Internet connection, or in
TELNET using terminal emulation software such as HyperTerminal, the flow system must be connected online through the
accQcomm’s Ethernet port. Open your browser and go to the
URL shown in the Address box on the Communication tab in the
accQcomm configuration software.
Note
Some users have reported difficulty viewing the accQcomm
web page using Internet Explorer version 6.0.2600.2180.
Other versions of Internet Explorer, as well as other browsers,
have no known problems with the accQcomm web page.
The default settings for the IP address and Subnet mask are
192.168.1.10 and 255.255.255.0, respectively. The default
TELNET port is 23.
Note
If you change the IP address, your Subnet may need to be
adjusted.
Once the address of a site is changed, this becomes the static
address (unchanging), and must be entered into your browser
every time you enter the site, or saved as a favorite site.
Note
The accQcomm uses TCP/IP communication protocol. Nearly
all network servers include these services. If yours does not,
install these services. You may also need to adjust your security and firewall settings to access the accQcomm.
For assistance in reserving a different static IP address for
your unit, contact your network administrator.
When you enter the site, the initial view will show a summary of
flow data, as well as sums and averages (Figure 2-12).
The table will display readings for each connected instrument.
For ports not connected to an instrument, the table will display
“No Valid Data.”
Note
For the accQmin flow meter, the accQcomm displays and
transmits secondary level data at 10X the actual value when
using Standard Data format. This should be considered when
setting up alarm conditions and analog outputs. This will not
occur with an accQmin using Reduced Data format.
2-16
accQcomm Interface Module
Section 2 Installation and Operation
Figure 2-12 Summary page in Web view
2-17
accQcomm Interface Module
Section 2 Installation and Operation
For each connected instrument, the table will provide links to
additional data (Figure 2-13, View Details) and recorded data
(Figure 2-14, View History).
Figure 2-13 Detailed view of instrument data
These pages may also be accessed by typing in the accQcomm’s
IP address, followed by either /instrument1.shtml (for additional
data from Instrument 1) or /history1.shtml (for recorded data
from Instrument 1).
2-18
accQcomm Interface Module
Section 2 Installation and Operation
Figure 2-14 Viewing historical site data
The accQcomm will store the last 100 readings for historical data
on the web site.
2.9 Default System
Recovery
In the event that the accQcomm’s IP address or configuration
baud rate are not known, communication can be reestablished by
performing a system reset. This procedure restores the unit to
factory default settings.
Note
Record your configuration settings for future use. Resetting the system erases all configuration settings. Only the totalizer values will remain.
If you attempt to connect with the accQcomm without the correct configuration baud rate or IP address, you will be unable
to communicate with the unit unless you adjust the baud rate
or reset the module to system default settings.
To restore the accQcomm with default settings, perform the following steps.
1. With power applied to the unit, use a straightened paperclip to depress the reset button (Figure 2-15).
2-19
accQcomm Interface Module
Section 2 Installation and Operation
Figure 2-15 accQcomm reset button
After a brief pause, the LCD will display:
2. While “ISCO” is displayed, press the reset button again.
The LCD will display:
Resets: 1
3. Press the reset button again. The LCD will display:
Resets: 2
4. Press the reset button once more. The LCD will display:
Resets: 3
2-20
accQcomm Interface Module
Section 2 Installation and Operation
After a few seconds, the LCD will change to display:
USING DEFAULT
SETTINGS
Once the accQcomm has moved past the Initializing screens,
communication is possible through the configuration port with
default settings (57600 bps, no parity, 1 stop bit, no Flow
Control), or through the Ethernet port (at IP address
192.168.1.10). Startup will once again use saved settings (if different settings are entered).
2.10 Cleaning
The module case may be cleaned with warm water and a mild
detergent.
Avoid getting liquids in the terminal connections or communication connectors. Do not spray or immerse the module in any
liquids.
CAUTION
Do not immerse the module in a bath for cleaning. The accQcomm is not hermetically sealed. If internal components get
wet, the module may be permanently damaged.
2-21
accQcomm Interface Module
Section 2 Installation and Operation
2-22
accQcomm Interface Module
Appendix A Commands, Constants, and Registers
A.1 Program Commands
Teledyne Isco recommends using the accQcomm configuration
software to configure the accQcomm.
The following section is intended for use when configuring the
accQcomm using a terminal emulation software such as HyperTerminal, instead of the accQcomm Configuration Software. All
program commands are listed in Table A-1.
To correctly program the accQcomm, enter all commands first,
then save them to the unit’s internal flash using the SS
command. Afterward, restart the accQcomm with the SR
command. The new settings will be applied upon restart.
Table A-1 accQcomm Program Commands
Commands and Definitions
Functions
AB
Maximum bad readings
Param 1 (Range – 255): Defines the maximum number of bad data readings before the current data is cleared from memory. The counters for bad
flow, bad velocity, bad depth, and time-outs, are compared to this value.
AE
Param 1 (Range 1 to 0): Channel 1 state: 0 is disabled and 1 is enabled.
Enable/Disable analog output channels
Param 2 (Range 1 to 0): Channel 2 state: 0 is disabled and 1 is enabled.
Param 3 (Range 1 to 0): Channel 3 state: 0 is disabled and 1 is enabled.
Param 4 (Range 1 to 0): Channel 4 state: 0 is disabled and 1 is enabled.
NOTE: The number of parameters is always 4, even if the system has less
than four analog outputs. If a given output is not installed, that command
has no effect.
Example — Enables analog output channels one and two, disables three
and four.
?>AE 1 1 0 0
AR
Analog channel range
Param 1 (Range 1 – 4): The analog channel being set.
Param 2: The instrument being assigned to the channel. Valid values
include numbers 1 to 3, Ins1, Ins2, Ins3, and Sys (used for averages and
summed flow).
Param 3: The data type that is assigned to the channel. Valid values include
Flow, Velocity, Depth, Temperature, Voltage, AvgDepth, SumFlow, etc. The
numerical data type constants in Table A-2 can also be used.
Param 4: The low range of the analog span; must be in internal units for the
data type specified.
Param 5: The high range of the analog span; must be in internal units for
the data type specified.
Example — Assigns analog output 1 to instrument 1 level; sets span from 0
to 2 meters:
?>AR 1 Ins1.Level 0 2000
A-1
accQcomm Interface Module
Appendix A Commands, Constants, and Registers
Table A-1 accQcomm Program Commands (Continued)
Commands and Definitions
Functions
AS
“Big Step” Constant
Param 1: A big step value for flow measurements. Changes exceeding this
value will not be smoothed.
Param 2: A big step value for velocity measurements. Changes exceeding
this value will not be smoothed.
Param 3: A big step value for depth measurements. Changes exceeding
this value will not be smoothed.
AT
TCF
Param 1, 2, and 3 (range 0 – 1000): A time constant factor (TCF) for
smoothing flow measurements. The value entered for each parameter is
divided by 1000 to obtain the smoothing constant (e.g. entering 500 yields a
constant of 0.50).
AZ
Zero screen constant
Param 1: A zero screen value for flow measurements (in cubic cm/s). Measured values below this value will be forced to zero in the smoothed flow
data type.
Param 2: A zero screen value for velocity measurements (in cubic mm/s).
Measured values below this value will be forced to zero in the smoothed
velocity data type.
Param 3: A zero screen value for depth measurements (in mm). Measured
values below this value will be forced to zero in the smoothed depth data
type.
IP
Sets the device IP Address
Param 1 (Range 0 – 255): First byte of the address.
Param 2 (Range 0 – 255): Second byte of the address.
Param 3 (Range 0 – 255): Third byte of the address.
Param 4 (Range 0 – 255): Fourth byte of the address.
Example —
?> IP 192.168.1.10
IS
Sets the device IP subnet mask
Param 1 (Range 0 – 255): First byte of the subnet mask.
Param 2 (Range 0 – 255): Second byte of the subnet mask.
Param 3 (Range 0 – 255): Third byte of the subnet mask.
Param 4 (Range 0 – 255): Fourth byte of the subnet mask.
Example —
?> IS 255.255.255.0
LB
LCD Backlight
Param 1 (Range 0 – 1): Sets the LCD screen backlight. 0 is off and 1 is on.
LC
LCD cycle interval
Param 1 (Range 0 – 15): Sets the time (in seconds) for which each display
on the LCD is shown. The LCD loops through all screens continuously
showing each screen for the time entered here. The LCD screens can be
configured using the LD command.
LS
Display Smoothed Values
Param 1 (range 0 – 1): If 1, smoothed data types will be displayed in the
LCD and on the main webpage. If <1, measured data is displayed.
A-2
accQcomm Interface Module
Appendix A Commands, Constants, and Registers
Table A-1 accQcomm Program Commands (Continued)
Commands and Definitions
Functions
LD
Configures the LCD Display
Param 1 (0 or 1): Toggles the Instrument 1 display on or off. 1 is on, 0 is off.
Param 2 (0 or 1): Toggles the Instrument 2 display on or off. 1 is on, 0 is off.
Param 3 (0 or 1): Toggles the Instrument 3 display on or off. 1 is on, 0 is off.
Param 4 (0 or 1): Toggles the 4-20 mA analog output display on or off. 1 is
on, 0 is off.
Param 5 (0 or 1): Toggles the Pushed Data display on or off. 1 is on, 0 is off.
NOTE: The system info display is always turned on.
Example —
For a two instrument setup with analog output but no pushed data.
?> LD 1 1 0 1 1 0
MA
Modbus address
Param 1 (Range 1 – 247): The device’s address as a Modbus slave. This is
the same for RTU and ASCII protocols.
MR
Modbus RTU/ASCII toggle
Param 1 (0 or 1): 1 sets the device in Modbus RTU, 0 sets the device for
Modbus ASCII. Modbus should already be selected using the SA command.
MF
Alternate Modbus on Serial Port F
Param 1 (0 or 1): Enables the device to use MODBUS and analog output
simultaneously. However, the Instrument 2 connection is lost. If MF is used,
SA 1 should also be used to enable analog output.
PE
Poll Ensemble
Param 1 (Range 1 - 3): The instrument to be polled. When a PE command
is issued, the accQcomm will output the full binary data of the last ensemble
received from the instrument over the connection. This may look like “garbage” characters, but can be used by an automated polling program.
RC
Sets one of the two conditions for each
of the eight alarms
Param 1 (Range 1 - 8): The alarm number.
NOTE: See programming example in
right column.
Param 2 (1 or 2): The condition for the given alarm. Each alarm has two
conditions that can be joined by an “AND” or “OR” logical operator. Each
condition must be set separately with different RC commands and the operator must be specified with RO.
Param 3 (Range 1 – 3): The instrument to which the alarm applies, can be
numerical 1 – 3 or Ins1, Ins2, etc., or Sys for averages and summed flow.
Param 4: The data type that is used in the condition. Can be a string constant such as Flow, Level, Depth, Temperature, etc. or any of the numerical
data type constants listed in Table A-2.
Param 5: A comparator for the data value (parameter 4) and the test value
(parameter 6). Can be any of the following: =, >, <. >=, <=.
Param 6: A test value, entered in internal units for the data type specified in
parameter 4.
Example: Set alert one, condition one, to alarm if Instrument 1 has a velocity less than 0.
?>RC 1 1 Ins1.Velocity < 0
A-3
accQcomm Interface Module
Appendix A Commands, Constants, and Registers
Table A-1 accQcomm Program Commands (Continued)
Commands and Definitions
Functions
RC
Set one alarm condition for flow pulse
output to a sampler
Param 1 (Range 1 - 8): The number of the alarm.
NOTE: Condition 2 and relay operator
field are ignored when a sampler pulse
output is configured.
Param 2 (1): The condition triggering the sampler pulse output.
Param 3 (Range 1 – 3): The instrument to which the alarm applies, can be
numerical 1 – 3 or Ins1, Ins2, etc.
Param 4: 1 (pulse).
Param 5: Comparator is SAMPLER.
Param 6: Volume per pulse, entered in units of 0.1L for the Volume / Totalized flow specified in parameter 4.
Example: Set up alarm 8 as a sampler pulse, generating one pulse for every
1000L on instrument #2.
?>RC 8 1 INS2 1 SAMPLER 10000
RE
Relay enable (on/off toggle)
Param 1 (Range 1 - 8): The relay alert to enable or disable
Param 2 (0 or 1): Toggle for the relay. If 1, the alert for that relay is evaluated, if 0 it is not.
NOTE: If a relay is not enabled, it will remain inactive (closed) unless power
fails. By disabling a relay, it can be used as a power fail alert.
RL
Relay is latching (on/off toggle)
Param 1 (Range 1 - 8): The relay alert that will be set as latching/not latching.
Param 2 (0 or 1): Toggle for the latching mode. If 1, the relay will remain
open (alarmed) if the alert condition evaluates true, regardless of any
change in the data value. If 0, the relay will open if the alarm expression
evaluates true and will close again if it evaluates false.
RO
Relay operator
Param 1 (Range 1 - 8): The relay operator is being set.
Param 2: The relay operator. The operator joins the two conditions and can
have any of the following values: And, Or, or None. If the value is None, a
second condition is never evaluated.
Example — Sets the relay 1 operator to None, such that only the first argument is evaluated.
?>RC 1 None
Programming Example —
The accQcomm has eight programmable relays for triggering alarms based on one or two user-defined conditions
(i.e., flow rate, level, velocity, etc.). Each condition is specified with a set of program commands.
In command mode, the relay alarm is enabled (RE), one or two conditions are set (RC), followed by a comparator
(>,<, >=, <=, or ==) and a user-defined value, and an operator of AND/OR/NONE is set (RO). If NONE is selected, the
second condition is ignored. The alarm can also be specified as latching (RL), meaning once the relay is triggered, it
will remain open regardless of changes in data.
In the following example, an alarm will be permanently triggered if the flow reverses:
?>RE 1, TRUE
?>RC 1 1 Ins1.Velocity < 0
?>RO 2 NONE
?>RL 1 TRUE
SA
Analog output enabled
A-4
(Sets Relay 1 to active)
(Sets Relay 1, Condition 1)
(Sets Relay 2, Operator to NONE)
(Sets Relay 1 as latching)
Param 1 (1 or 0): Enables/disables the 4-20 mA outputs. If 1, the analog
outputs are enabled and Modbus is disabled (unless the MF 1 command is
sent), if 0 then analog outputs are disabled and Modbus is enabled.
accQcomm Interface Module
Appendix A Commands, Constants, and Registers
Table A-1 accQcomm Program Commands (Continued)
Commands and Definitions
SB
Initialize modem
Functions
Param 1 (String): A command string used to initialize the modem. All
parameters must be entered on one line with no spaces. The command
string is sent to the modem at startup.
Example — Sets the modem to auto-answer after two rings and disables
DTR line checking:
ATS0=2;&D0&K0
SC
Coordinate Flash/BBRAM totalizers
Param 1 (0 or1): Direction of coordination:
SD
Set all settings to system defaults
NOTE: Reset the unit to factory defaults by entering an SD command followed by an SS command.
SF
Control/Programming port flow control
toggle
Param 1 (1 or 0): Toggles flow control on the unit’s programming port. Flow
control (CTS/RTS) can be used if the unit is connected to a modem or other
telephony device. 1 enabled flow control, 0 disabled flow control.
If 0, then the Flash totalizers are set to the current value of the BBRAM
totalizers. If 1, the BBRAM totalizers are set to the current value of the Flash
totalizer.
SH
This command configures all hardware for the current settings without a
Reinitialize hardware to current settings restart.
SI
Instrument type
Param 1 (Range 1 to 3): The instrument connection that is being set. This
corresponds to the connections labeled 1 to 3 on the front panel.
Param 2: The instrument type. The valid entries are “ADFM,” “AccQmin,”
“HADFM,” and “NONE.” If the instrument type is “None” then the given port
is disabled.
Example —
Sets instrument 1 as an ADFM.
?>SI 1 ADFM
SM
Modem Connected
Param 1 (Range 1 or 0): 1 if a modem is connected, 0 if it is not. If 1, the
modem initialization string will be sent at startup (see SB command); this
does not turn flow control on or off (see SF command).
SN
Site Name/Instrument Name
Param 1 (Range 0 to 3): The device for which the name is being set. 0 is the
site device name, 1 – 3 are the instrument names.
Param 2: The site name length. Must be less than 12 characters, alphanumeric only.
SO
Instrument time-out
Param 1 (Range 60 to 3600+): The time-out for instrument 1 in seconds. If
the specified time elapses without a valid reading from the instrument, then
the bad data counter is incremented. If this counter reaches the value specified by the AB command, the analog output returns to 4.0 mA. The minimum value is 60 seconds; if the value is greater than 3600, the time-out
counter is not used.
Param 2 (Range 60 to 3600+): The time-out for instrument 2 in seconds
(see parameter 1).
Param 3 (Range 60 to 3600+): The time-out for instrument 2 in seconds
(see parameter 1).
NOTE: To disable time-outs, enter a value greater than 3600.
A-5
accQcomm Interface Module
Appendix A Commands, Constants, and Registers
Table A-1 accQcomm Program Commands (Continued)
Commands and Definitions
Functions
SP
Serial port configuration
Param 1 (Range 0 to 3): The serial port that is being configured. Values are
as follows:
1 = Instrument 1 (Serial Port B)
2 = Instrument 2/Modbus alternate (Serial Port F)
3 = Programming port (Serial Port C)
4 = Instrument 3 (Serial Port A)
5 = Modbus (Serial Port D, only when Modbus is enabled on Serial D).
Param 2 (Range 1200 – 115200): Baud rate for the port, entered as an integer.
Param 3 (0 or 1): The data bits for the port, 1 is 8 bits, 0 is 7 bits.
Param 4 (Range 0 to 3): The parity on the port. Values are as follows:
0 = None
1 = Odd
2 = Even
3 = Two stop bits
Example —
Sets Instrument 1 to defaults.
?>SP 1 9600 1 0
SR
System restart
SS
Save settings to flash
ST
Sets the system time
NOTE: A system restart is required after changing any settings. To correctly
program the unit, enter all commands, enter SS to save the settings to flash
memory, and SR to restart the unit with the new settings.
To correctly program the unit, enter all commands, enter SS to save the settings to flash memory, and SR to restart the unit with the new settings.
Param 1 (Range 1980 - 2047): Year
Param 2 (Range 1 - 12): Month
Param 3 (Range 1 – 31): Day
Param 4 (Range 0 – 23): Hour
Param 5 (Range 0 - 59): Minute
Param 6 (Range 0 – 59): Second
SU
Display units for a given measurement
type
Param 1: An abbreviation for the display units. The accQcomm will automatically determine the measurement type and display all measurements in the
units. Valid entries are as follows.
Level measurements: FT, IN, CM, MM, M
Velocity measurements: M/S, CM/S, MM/S, FT/S,
Flow measurements: MGD, GPM, CFS, CUMECS, CUBICCM/S, LPS
Area measurements: FT^2, IN^2, CM^2, M^2
Volume measurements: LITERS, MEGALITERS, CUBICMETERS, GALLONS, KGALLONS, MGALLONS, CUBICFEET, ACREFEET
Temperature measurements: C, F
Example —
Sets flow measurements to display in Million Gallons per Day
?>SU MGD
SX
Prepare unit for firmware flash
A-6
Param 1: Flash baud rate. This differs from the regular configuration port
baud rate. It must match the flash program baud rate. This command is
generally issued by the software flash program.
accQcomm Interface Module
Appendix A Commands, Constants, and Registers
Table A-1 accQcomm Program Commands (Continued)
Commands and Definitions
Functions
SZ
Reset Totalizer
Param 1 (range 1 to 3): The totalizer for Instrument 1, 2, or 3 will be reset to
zero. (Also performed with menu command. Refer to Section 2.2.3.)
TM
Set Totalizer Mode
Changing the mode will reset all totalizers to zero. If this command is used
but not set to a different mode, the totalizers will not be reset.
?>TM <MODE>
The possible values for <MODE> are: NET, POSITIVE, and NEGATIVE.
A.2 Data Type Constants
Table A-2 lists all of the parameters that can be specified for the
AR (analog range) and RC (alarm range/condition) commands.
Table A-2 Data Type Constants
Data Type Description
Numeric Constant
Q Main (actual computed flow)
1
Q ModAV
2
Q HRW
3
Q Manning (computed Manning flow)
4
Q Shape
5
Smoothed Flow
6
Area
7
Totalizer
8
Forward totalizer increment
9
Reverse totalizer increment
10
Raw velocity
11
Average velocity
12
Virtual beam 1 velocity
13
Virtual beam 2 velocity
14
Smoothed Velocity
15
Main depth
16
Ultrasonic Range
17
Ultrasonic Depth
18
Secondary Depth
19
Smoothed Depth
20
Sensor Temperature
21
Electronics Temperature
22
Voltage
23
BIT Result
24
Ensemble Number
25
A-7
accQcomm Interface Module
Appendix A Commands, Constants, and Registers
Table A-2 Data Type Constants (Continued)
A.3 MODBUS Register
Locations
Data Type Description
Numeric Constant
Received Time
26
Time-outs
27
Bad Flow Count
28
Bad Velocity Count
29
Bad Depth Count
30
Ensemble Timestamp
31
Ensemble Year
32
Ensemble Month
33
Ensemble Day
34
Ensemble Hour
35
Ensemble Minute
36
Ensemble Second
37
Average Flow
38
Average Velocity
39
Average Level (Depth)
40
Average Temperature
41
Summed Flow
42
Table A-3 on the following page lists all available MODBUS register addresses and data types.
Internal units of measure for MODBUS cannot be changed.
Parameter values will always be output as follows:
Flow
cc/sec
Area
cm2
Temp
°C
Velocity
mm/sec
Depth
mm
Volume
m3
All data is expressed as 16-bit integer values in the MODBUS
internal units. Some values may be large enough to require two
registers. If a data type is bad or missing, the corresponding register is assigned a value of -32768.
A-8
accQcomm Interface Module
Appendix A Commands, Constants, and Registers
A.3.1 Explanation of an
Example Output
Reading
Assume the current flow rate value is .446697 m3/s.
The accQcomm screen will display a flow rate of .446 m3/s. The
Modbus output value will appear as 446697 (Modbus units of
measure for flow are always in cc/sec, as stated above.)
In Table A-3, the two corresponding flow rate registers are 30001
and 30002.
In this case, register 30001 (lower word) contains the value
-12055, and register 30002 (upper word) contains the value 6.
Combine these two values into a 32-bit integer by doing the following:
Convert the decimal values into hex.
-12055 = D0E9
6 =6
Combine the two hex values for a sum of 6D0E9. Converted back
into decimal format, this value becomes 446697. This is the flow
rate in cc/sec. Divided by 1,000,000, this value becomes .446, the
flow rate in m3/s displayed on the accQcomm.
A.3.2 Explanation of Volume
Interval Registers
Note that Modbus registers 30015, 30016, 30065, 30066, 30115,
and 30116 do not represent cumulative volumes; they are
interval volumes. To use these values, consider the following
points:
1. Track the ensemble number and only read/process the
incremental volumes when a new ensemble occurs--not
with every scan.
2. On scans when the ensemble number increments, count
the interval volume number(s) and add/subtract from a
running total maintained in SCADA.
This mechanism allows the user to implement a forward
totalizer, reverse totalizer, and/or net totalizer as desired.
Further refinement(s) would be to ensure that the SCADA
system does not miss any updates, and/or check the flow
rate against the incremental total.
3. For positive flow, the forward total will be a positive value,
and reverse total will be zero. For negative flow, the reverse
total will be a positive value, and forward total will be zero.
4. Short update intervals with low flow rates may show a zero
volume due to rounding.
A-9
accQcomm Interface Module
Appendix A Commands, Constants, and Registers
Table A-3 MODBUS Register Addresses
Data Type
Data Value
Sums
Summed Flow (lower word)
30151
Summed Flow (upper word)
30152
Average Flow (lower word)
30153
Average Flow (upper word)
30154
Average Velocity
30155
Average Level
30156
Average Temperature
30157
Averages
Flow
Area
Volume
Velocity
Level
Instrument 1
30001
30051
30101
Flow (Q Main, upper word)
30002
30052
30102
Q ModAV (lower word)
30003
30053
30103
Q ModAV (upper word)
30004
30054
30104
Q HRW (lower word)
30005
30055
30105
Q HRW (upper word)
30006
30056
30106
Q Manning (lower word)
30007
30057
30107
Q Manning (upper word)
30008
30058
30108
Q Shape (lower word)
30009
30059
30109
Q Shape (upper word)
30010
30060
30110
Smoothed flow (lower word)
30011
30061
30111
Smoothed flow (upper word)
30012
30062
30112
Wetted Area (lower word)
30013
30063
30113
Wetted Area (upper word)
30014
30064
30114
Volume (Forward Interval)
30015
30065
30115
Volume (Reverse Interval)
30016
30066
30116
Raw velocity
30017
30067
30117
Average velocity
30018
30068
30118
Virtual beam 1 velocity
30019
30069
30119
Virtual beam 2 velocity
30020
30070
30120
Smoothed Velocity
30021
30071
30121
Level (Main Depth)
30022
30072
30122
Ultrasonic Range
30023
30073
30123
30024
30074
30124
Secondary Depth
30025
30075
30125
Smoothed Depth
30026
30076
30126
Sensor Temperature
30027
30077
30127
a
A-10
Instrument 3
Flow (Q Main, lower word)
Ultrasonic Depth
Temperature
Instrument 2
accQcomm Interface Module
Appendix A Commands, Constants, and Registers
Table A-3 MODBUS Register Addresses (Continued)
Data Type
Data Value
Instrument 1
Instrument 2
Instrument 3
Electronics Temperature
30028
30078
30128
Voltage
Voltage
30029
30079
30129
System
BIT Result
30030
30080
30130
Ensemble Number
30031
30081
30131
Ensemble Year
30032
30082
30132
Ensemble Month
30033
30083
30133
Ensemble Day
30034
30084
30134
Ensemble Hour
30035
30085
30135
Ensemble Minute
30036
30086
30136
Ensemble Second
30037
30087
30137
Received Time
30038
30088
30138
Received Time (upper word)
30039
30089
30139
Time-outs
30040
30090
30140
Bad Flow Readings
30041
30091
30141
Bad Velocity Readings
30042
30092
30142
Bad Depth Readings
30043
30093
30143
a.
When using Standard Data format, accQmin secondary level data appears as 10X its actual value. This should be
considered when secondary depth is used for alarming or analog output. This does not occur with secondary level
data with Reduced Data format.
A-11
accQcomm Interface Module
Appendix A Commands, Constants, and Registers
A-12
accQcomm Interface Module
Appendix B Equipment, Accessories, and Replacement Parts
Equipment, accessories, and replacement parts can be purchased
by contacting Teledyne Isco’s Customer Service Department.
Teledyne Isco
Customer Service Department
P.O. Box 82531
Lincoln, NE 68501 USA
Phone: (800) 228-4373
(402) 464-0231
FAX:(402) 465-3022
E-mail:IscoInfo@teledyne.com
B-1
accQcomm Interface Module
Appendix B Equipment, Accessories, and Replacement Parts
B.1 Equipment and
Accessories
accQcomm Interface Module . . . . . . . . . . . . . . . . . . . . 68-7500-010
MODBUS output only
accQcomm Interface Module . . . . . . . . . . . . . . . . . . . . 68-7500-011
MODBUS + 1 analog output
accQcomm Interface Module . . . . . . . . . . . . . . . . . . . . 68-7500-012
MODBUS + 2 analog outputs
accQcomm Interface Module . . . . . . . . . . . . . . . . . . . . 68-7500-013
MODBUS + 3 analog outputs
accQcomm Interface Module . . . . . . . . . . . . . . . . . . . . 68-7500-014
MODBUS + 4 analog outputs
Note
All accQcomm packages listed above consist of the accQcomm module, 6ft RS232 cable, 24VDC power supply, configuration software, and user manual.
accQcomm Configuration Software. . . . . . . . . . . . . . . 60-7504-019
accQcomm Instruction Manual . . . . . . . . . . . . . . . . . . 69-7503-015
Flow Meter to accQcomm 9-Pin Cable . . . . . . . . . . . . 60-7004-057
Flow Meter to accQcomm Terminal Cable . . . . . . . . . 69-7504-020
ADFM Canister to accQcomm 9-pin Cable. . . . . . . . . 60-7004-027
RS232 Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 480-7999-02
Console to accQcomm Cable . . . . . . . . . . . . . . . . . . . . 60-7504-016
24VDC Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . 60-7504-017
Environmental Console 115VAC. . . . . . . . . . . . . . . . . 68-7800-015
Environmental Console 230VAC. . . . . . . . . . . . . . . . . 68-7800-023
Environmental Console 115VAC w/ 400w heater . . . 68-7800-415
Environmental Console 230VAC w/ 400w heater . . . 68-7800-423
Environmental Console 115VAC w/ 800w heater . . . 68-7800-815
Environmental Console 230VAC w/ 800w heater . . . 68-7800-823
B-2
accQcomm Interface Module
Appendix B Equipment, Accessories, and Replacement Parts
B.2 Replacement Parts
Diagrams and Listings
Replacement parts are called out in illustrations on the following
pages. Reference the call-outs in the accompanying tables at the
end of the section to determine the part number for the item.
B-3
accQcomm Interface Module
Appendix B Equipment, Accessories, and Replacement Parts
B-4
accQcomm Interface Module
Appendix B Equipment, Accessories, and Replacement Parts
B-5
accQcomm Interface Module
Appendix B Equipment, Accessories, and Replacement Parts
B-6
accQcomm Interface Module
Appendix B Equipment, Accessories, and Replacement Parts
B-7
accQcomm Interface Module
Appendix B Equipment, Accessories, and Replacement Parts
B-8
accQcomm Interface Module
Appendix B Equipment, Accessories, and Replacement Parts
B-9
accQcomm Interface Module
Appendix B Equipment, Accessories, and Replacement Parts
B-10
accQcomm Interface Module
Appendix B Equipment, Accessories, and Replacement Parts
B-11
accQcomm Interface Module
Appendix B Equipment, Accessories, and Replacement Parts
B-12
accQcomm Interface Module
Index
Numerics
O
4-20 mA output, 2-10
outputs, 1-2, 2-9
alarms, 2-8
analog, 2-10
ethernet, 2-16
MODBUS, 1-2, 2-9
smoothing, 2-13
A
alarms, 2-8
command mode, A-4
example, 2-8, A-4
analog output, 2-10
P
E
port settings, 2-6
flow control, 2-7
programming, 2-1
alarms, 2-8
analog output, 2-10
command mode, 2-1, A-1
communication tab, 2-6
configuration software, 2-1
display units, 2-3
error handling, 2-5
instruments, 2-4
LCD, 2-2
MODBUS, 2-9
modem activation, 2-7
network settings, 2-7
outputs, 2-9
port settings, 2-6
site tab, 2-2
smoothing tab, 2-13
errors, 2-5
Ethernet connection, 2-7, 2-16
R
F
reset
system, 2-19
rest
totalizer, 2-4
B
bad data, 2-14
C
cables, 1-2
cleaning, 2-21
command mode, A-1
alarms, A-4
data type constants, A-7
table of commands, A-1
communication, 2-6
connectors, 1-2
D
data type constants, A-7
default settings restore, 2-19
flow control, 2-7
L
LCD, 2-2
M
MODBUS, 2-9
registers, A-8
units of measure, 2-9, A-8
modem, 2-7
initialization string, 2-7
N
S
site setup, 2-2
small flows, 2-14
smoothing, 2-13
bad data, 2-14
deactivate for abrupt changes, 2-14
TCF, 2-13
zero flow, 2-14
software, 2-1
specifications, 1-5
system reset, 2-19
network settings, 2-7
Index-1
accQcomm Interface Module
Index
T
technical specifications, 1-5
totalizer, 2-3
reset, 2-4
U
units of measure, 2-3
unpacking instructions, 1-4
W
Web viewing, 2-16
Z
zero flow, 2-14
Index-2
Compliance Statements
DECLARATION OF CONFORMITY
Application of Council Directive:
Manufacturer's Name:
Manufacturer's Address:
Standard
of
C
on
fo
r
m
ity
Equipment Type/Environment:
Trade Name/Model No:
Year of Issue:
Standards to which Conformity is Declared:
89/336/EEC – The EMC Directive
73/23/EEC – The Low Voltage Directive
Teledyne Isco, Inc.
4700 Superior, Lincoln, Nebraska 68504 USA
Mailing Address: P.O. Box 82531, Lincoln, NE 68501
Laboratory Equipment for Light Industrial/Commercial Environments
accQcomm
2006
EN 61010-1
Safety Requirements for Electrical Equipment for
Measurement, Control, and Laboratory Use
EN 61326:1998 EMC Requirements for Electrical Equipment for
Measurement, Control, and Laboratory Use
Description
Severity Applied
Performance Criteria
Electrostatic Discharge
Level 2 - 4kV contact discharge
Level 3 - 8kV air discharge
A
EN61000-4-3
Radiated RF Immunity
80 MHz to 1000MHz 80% AM at 1kHz
Level 1 – 10V/m
A
EN61000-4-4
Electrical Fast Transient
Level 2 – 2kV on AC lines
A
EN61000-4-5
Surge on I/O Lines
2kV common mode,
1KV differential mode
A
EN61000-4-6
Conducted RF on AC lines
150 kHz to 80 MHz,
3V rms, 80% modulated
A
EN61000-4-11
Voltage Dips/Short Interruptions
0.5 cycle, each polarity/100%
A
CISPR11/
EN 55011
RF Emissions
Group 1, Class A Industrial, Scientific, and
Medical Equipment
EN61000-3-2, 3-3
Harmonic, Flicker
C
E
D
ec
la
ra
ti o
n
EN61000-4-2
I hereby declare that the design of the equipment specified above conforms to the above Directive(s) and Standards as of October 16,
2006
William Foster
USA Representative
Teledyne Isco Inc.
William Foster
Director of Engineering
Teledyne Isco, Inc.
4700 Superior Street
Lincoln, Nebraska 68504
Phone: (402) 464-0231
Fax: (402) 464-4543
60-7502-013
Warranty
Teledyne Isco One Year Limited Factory Service Warranty*
This warranty exclusively covers Teledyne Isco
instruments, providing a one-year limited warranty
covering parts and labor.
Any instrument that fails during the warranty period due to
faulty parts or workmanship will be repaired at the factory
at no charge to the customer. Teledyne Isco’s exclusive
liability is limited to repair or replacement of defective
instruments. Teledyne Isco is not liable for consequential
damages.
Teledyne Isco will pay surface transportation charges both
ways within the 48 contiguous United States if the
instrument proves to be defective within 30 days of
shipment. Throughout the remainder of the warranty period,
the customer will pay to return the instrument to Teledyne
Isco, and Teledyne isco will pay surface transportation to
return the repaired instrument to the customer. Teledyne
Isco will not pay air freight or customer’s packing and
crating charges. This warranty does not cover loss, damage,
or defects resulting from transportation between the
customer’s facility and the repair facility.
The warranty for any instrument is the one in effect on date
of shipment. The warranty period begins on the shipping
date, unless Teledyne Isco agrees in writing to a different
date.
Excluded from this warranty are normal wear; expendable
items such as charts, ribbon, lamps, tubing, and glassware;
fittings and wetted parts of valves; and damage due to
corrosion, misuse, accident, or lack of proper maintenance.
This warranty does not cover products not sold under the
Teledyne Isco trademark or for which any other warranty is
specifically stated.
No item may be returned for warranty service without a
return authorization number issued by Teledyne Isco.
This warranty is expressly in lieu of all other warranties
and obligations and Teledyne Isco specifically disclaims
any warranty of merchantability or fitness for a
particular purpose.
The warrantor is Teledyne Isco, Inc. 4700 Superior,
Lincoln, NE 68504, U.S.A.
* This warranty applies to the USA and countries where Teledyne Isco Inc. does not have an authorized
dealer. Customers in countries outside the USA, where Teledyne Isco has an authorized dealer, should
contact their Teledyne Isco dealer for warranty service.
Before returning any instrument for repair, please call, fax, or e-mail the Teledyne Isco Service
Department for instructions. Many problems can often be diagnosed and corrected over the
phone, or by e-mail, without returning the instrument to the factory.
Instruments needing factory repair should be packed carefully, and shipped to the attention of
the service department. Small, non-fragile items can be sent by insured parcel post. PLEASE
BE SURE TO ENCLOSE A NOTE EXPLAINING THE PROBLEM.
Shipping Address:
Mailing Address:
Phone:
Fax:
Email:
Teledyne Isco, Inc. - Attention Repair Service
4700 Superior Street
Lincoln, NE 68504 USA
Teledyne Isco, Inc.
PO Box 82531
Lincoln, NE 68501 USA
Repair service:
(800) 775-2965 (lab instruments)
(866) 298-6174 (samplers & flow meters)
Sales & General Information: (800) 228-4373 (USA & Canada)
(402) 465-3001
IscoService@teledyne.com
August 13, 2011 P/N 60-1002-040 Rev F