INTRODUCTION
I-E96-317A
5 - 1
SECTION 5 - TROUBLESHOOTING
INTRODUCTION
While RIO modules are dependable, error situations can occur.
Table
provides a troubleshooting guide with step-by-step
procedures to follow should an error situation arise. Tables
, and
list the pin connections for P1, P2, and P3.
ERROR INDICATIONS
Table
shows the condition status LED can have and what
action to take.
Table 5-1. Troubleshooting the RIO
Problem
Suggested Action
Status LED remains off after start-up.
Local RIO:
1. Check the MFP configuration to verify the RIO address
assignment.
2. Check the RIO address switch. It must match the address
configured in the MFP.
3. Check the status of other slaves n the local Expander Bus. If
their status is okay, then a probable defect exists in the RIO, or
its connection to the local Expander Bus.
4. Check S2 dipswitch to ensure it is set for local operation.
Remote RIO:
1. Check the local RIO to verify it is operating.
2. Check the local RIO to verify the RIO address assignment.
3. Check the RIO address switch. It must match the address
configured in the MFP.
4. Check S2 dipswitch to ensure it is set for remote operation.
5. Check cable connections between local and remote node.
Status LED remains red after start-up.
1. Replace the RIO.
Table 5-2. RIO P1 Pin Connections
Pin No.
Signal
Pin No.
Signal
1
2
3
4
5
6
+ 5 VDC
+ 5 VDC
N/C
N/C
Ground
Ground
7
8
9
10
11
12
+ 15 VDC
- 15 VDC
PFI
PFI
Module Bus
Module Bus
N/C = Not Connected
PFI = Power Fail Interrupt