Message instructions -7, Message instructions – Rockwell Automation 1756-SYNCH ControlLogix SynchLink Module User Manual User Manual
Page 69

Publication 1756-UM521C-EN-P - July 2004
Troubleshooting the SynchLink Module 6-7
Message Instructions
To retrieve and reset the SynchLink diagnostic counter information, you must
use a message instruction in ladder logic and a CIP message. This ladder logic
is written in the Main Routine section of RSLogix 5000.
CRC Error
Counter
Number of CRC errors detected
on the SynchLink system since
power-up or last reset service
DINT
2
0 to 2
32
- 1
Framing Error
Counter
Number of framing errors
detected on SynchLink since
powerup or last reset service
DINT
3
0 to 2
32
- 1
Incomplete
Package Error
Counter
Number of incomplete package
errors detected on SynchLink
since powerup or last reset
service
DINT
4
0 to 2
32
- 1
SynchLink
Revision
Revision of SynchLink supported
DINT
5
Bits 0 to 15 - Minor Revision
Bits 16 to 31 - Major Revision
Table 6.3 SynchLink Module Diagnostic Counters
Name:
Description:
Data Type
Attribute ID:
Possible Values:
Double-click to enter the
Main Routine
After adding a message
instruction to a rung, you must
create a tag for the message
instruction
1. Right-click on the
question mark (?) to see
this pull-down menu.
2. Click here to Create a
New Tag.