Rockwell Automation 1791R-XXXX CompactBlock RIO - Manual (Page 23)

CompactBlock Distributed I/O on Remote I/O 23
Publication 1791R-IN001A-EN-P - February 2002
Troubleshoot with the Indicators
The 1791R I/O module has the following indicators:
•
Status indicator - base only
•
Comm indicator - base only
•
I/O status indicators - base and expansion
4B4P with 0B16PX
17 16 15 14 13 12 11 10 7 6 5 4 3 2 1 0
Input
Image Reserved In
3 In
2 In
1 In
0
Input
Image Reserved
Output
Image EX
O
11 EX
O
10 EX
O
9 EX
O
8 EX
O
7 EX
O
6 EX
O
5 EX
O
4 EX
O
3 EX
O
2 EX
O
1 EX
O
0 O
3 O
2 O
1 O
0
Output
Image Reserved EX
O
15
EX
O
14 EX
O
13 EX
O
12
Status Indicator
Indication: Status:
Off No power
Red Hardware or software error, power is low
Green Normal operation
Flashing Red Comm failure 1*
Flashing Red/Orange Expansion error
*1 Comm fail = communication cable disconnected, 100ms between valid
frames, no more than 255 valid frames between valid frames addressed to
module, 20ms idle time exceeded.
**2 COMM and STATUS will alternately flash when processor restart lockout is
selected, a fault has occurred and the processor is communicating with he
module.