Manuals
/
Omega
/
Computer Equipment
/
Modem
Omega
A2400
manual
Typical system overview
Models:
A2400
1
54
68
68
Download
68 pages
15.57 Kb
51
52
53
54
55
56
57
58
Troubleshooting
Error codes
Block Diagram
Default Mode
Programmable Delay Times
Warranty
Chapter A2400 Command Set
Chapter Power Supply
Chapter Transparent Mode
Page 54
Image 54
Extended Addressing
9-2
Figure 7.1 Typical system overview.
Page 53
Page 55
Page 54
Image 54
Page 53
Page 55
Contents
User’sGuide
Servicing North America
For immediate technical or application assistance
Servicing Europe
BOX
Revised 4/17/95
Omega Engineering ONE Omega Drive
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
RS-485 Termination
A2400 Operation
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
Miscellaneous Protocol Notes
Data Structure
Write Protection
Response Structure
Command Checksum
Long Form Responses
?1 Syntax Error
?1 BAD Checksum
$1WEF
A2400 User Commands
A2400 Command Set
RT3
Command $1DO01 Response Command #1DO01 Response *1DO014F
Command Descriptions
Command 01CC Response Response *01CC11 Digital Output do
Closed Channel CC Extended
Command $1DO00 Response Command #1DO00 Response *1DO004E
Extended Address EA
$1ID Tank Farm
#1ID Tank Farm
1ID Tank Farm 1CD
Command 01OC Response Response *01OCED
Open Channel OC Extended
Read Data RD
#1RID
$1RID
Tank Farm
1RID Tank Farm 11F
$1RSP
$1RSU
#1RSU
#1RSP
Read Time Delay 1 RT1
Response *1RT1+00100.00DC Read Time Delay 2 RT2
Response *+00100.00
Page
Page
Short Prompt SP
Address Error
Command 01WE Response *01WE27
Error Messages
BAD Checksum
Syntax Error
Command Error
Parity Error
Value Error
Chapter Setup Information/SetUp Command
Command Syntax
$1SUbyte 1byte 2byte 3byte
Byte
Byte 1 Ascii Printable Characters
HEX Ascii
Parity
Baud Rate
Command $1RS Response *31070000
Command $1WE Response Command $1SU31020000
Command $1RS Response *31020102 Command $1WE
Byte 2 Linefeed, Parity and Baud Rate
Command $1RR Response
Bit
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
Chapter Troubleshooting
Symptom RS-232 Module is not responding to commands
Symptom RS-485 Module is not responding to commands
Command 01WE Response
Open/Close Channel Commands
Chapter Extended Addressing
Typical system overview
Command 01CC Response
Command 01OC Response
Command $1RD Response +00100.00 Typical $2RD +00123.45
Command 02OC Response
Structured Addressing
Extended Address Syntax
Implied OC Command
OC and CC Command Formats
Implied CC Command
Command Response
Command Response *01OC1D Single Command Module Address
Command 01$1RD Response *+00100.00
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
Shop online at omega.com
Top
Page
Image
Contents