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A2400 manual Transparent Mode
Models:
A2400
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Troubleshooting
Error codes
Block Diagram
Warranty
Chapter A2400 Command Set
Default Mode
Programmable Delay Times
Chapter Power Supply
Chapter Transparent Mode
Page 64
Image 64
Transparent Mode
10-5
Example 4. A2400 interfacing several instruments with a string of modules.
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Image 64
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Contents
User’sGuide
For immediate technical or application assistance
Servicing North America
Servicing Europe
Revised 4/17/95
Omega Engineering ONE Omega Drive
BOX
STAMFORD, CT Phone 1-800-DAS-IEEE
Table of Contents
Chapter Getting Started
Introduction
System Overview
Leased Lines
$1RD
+99999.99
Default Mode
Page
Block Diagram
Chapter Functional Description
Functional Description
Pinout
A2400 Operation
RS-485 Termination
Character Filter
Page
Programmable Delay Times
Page
Command $1RD Response *+99999.99
Chapter Communications
DO, OC, CC, RD, REA, RID, RLP, RS, RSP, RSU
Communication
RS-485 Multidrop System
DATA+
Page
Chapter A2400 Command Set
Command Structure
Data Structure
Write Protection
Miscellaneous Protocol Notes
Response Structure
Command Checksum
Long Form Responses
?1 BAD Checksum
?1 Syntax Error
$1WEF
A2400 User Commands
A2400 Command Set
RT3
Command Descriptions
Command 01CC Response Response *01CC11 Digital Output do
Command $1DO01 Response Command #1DO01 Response *1DO014F
Closed Channel CC Extended
Command $1DO00 Response Command #1DO00 Response *1DO004E
Extended Address EA
#1ID Tank Farm
$1ID Tank Farm
1ID Tank Farm 1CD
Open Channel OC Extended
Command 01OC Response Response *01OCED
Read Data RD
$1RID
Tank Farm
#1RID
1RID Tank Farm 11F
$1RSU
#1RSU
$1RSP
#1RSP
Response *1RT1+00100.00DC Read Time Delay 2 RT2
Read Time Delay 1 RT1
Response *+00100.00
Page
Page
Short Prompt SP
Command 01WE Response *01WE27
Error Messages
Address Error
BAD Checksum
Command Error
Parity Error
Syntax Error
Value Error
Command Syntax
Chapter Setup Information/SetUp Command
$1SUbyte 1byte 2byte 3byte
Byte
Byte 1 Ascii Printable Characters
HEX Ascii
Parity
Baud Rate
Command $1WE Response Command $1SU31020000
Command $1RS Response *31070000
Command $1RS Response *31020102 Command $1WE
Command $1RR Response
Bit
Byte 2 Linefeed, Parity and Baud Rate
Baud
Normal addressing
Chapter Delay Time Programming
Delay Time Programming
Page
Command $1T3+00050.00 Set T3 to 50 ms Response
Command $1RT1 Response *+00100.00
Chapter Power Supply
Symptom RS-232 Module is not responding to commands
Chapter Troubleshooting
Symptom RS-485 Module is not responding to commands
Open/Close Channel Commands
Command 01WE Response
Chapter Extended Addressing
Typical system overview
Command 01OC Response
Command $1RD Response +00100.00 Typical $2RD +00123.45
Command 01CC Response
Command 02OC Response
Structured Addressing
Extended Address Syntax
OC and CC Command Formats
Implied CC Command
Implied OC Command
Command Response
Command 01$1RD Response *+00100.00
Command Response *01OC1D Single Command Module Address
Explicit Open and Close Channel Commands
Command 01CC Response 01CC11 ‘11’ is the checksum
Command 02OC Response 02OC1E ‘1E’ is the checksum
Chapter Transparent Mode
Transparent Mode Functions
A2400 interfacing a PLC to a leased-line modem
A2400 networking several RS-232 devices to a host computer
A2400 interfacing a laboratory instrument with modules
Transparent Mode
Adding secondary control using A2400 modules
Transparent Mode
WARRANTY/DISCLAIMER
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