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Main Menu
Diagnostics
Lead/Reserve CPU Diagnostics
60
900 Control Station User Guide
Revision 9
May 2014
Class
Status
Possible Cause
Controller Action
Fix
I/O RACK
COMM PORT
GOOD
Normal operation
N/A
DATA LINK
FAILURE
•
Scanner2 address
switches are not in the
correct position
•
An I/O cable is
unplugged.
•
Cables are defective or
are not properly
shielded
•
If a hub is used, it may
be powered down.
•
The Scanner2 is
powered down.
•
The Scanner2 is
defective
Controller continues
to run but is not able
to access the I/O on
the associated rack
1. Verify that the address
switches on the scanner 2 are
set correctly.
2. If a hub is used, check that all
cables are properly connected
to the hub, proper crossover
cables are used, that the hub
is powered, and it supports
100 Base-T.
3. Check cable shielding for
proper grounding and noise
immunity.
4. Make sure the cables have the
correct pin out.
5. Cycle power to the Scanner 2.
6. Cycle power to the hub.
7. Cycle power to the C70R.
8. Replace the expansion rack’s
scanner module.
9. Replace the expansion rack’s
power supply.
10. Replace the expansion rack.
11.Replace the main CPU.
HARDWARE
FAILURE
h)
The I/O interface has a
hardware failure.
Controller continues
to run but is not able
to access any I/O.
Replace the CPU.
PORT A/B
CABLE
MISMATCH
The I/O cables from
CPUA and CPUB are
connected to the wrong
ports on the I/O scanner
CPU
Controller continues
to run but is not able
to access the I/O on
the associated rack
Swap the cables so that I/O A is
connected to I/O on CPUA and I/O
B is connected to I/O on CPUB
PROTOCOL
MISMATCH
The firmware version in
the controller CPU is not
compatible with the
firmware version in the I/O
scanner
Controller continues
to run but is not able
to access the I/O on
the associated rack
Upgrade the firmware in the CPU
and/or scanner to be compatible
versions
NETWORK
PORT E1
REFER TO Table 11 Ethernet Port E1/E2: Port Diagnostic status page 28
NETWORK
PORT E2
REFER TO Table 11 Ethernet Port E1/E2: Port Diagnostic status page 28
SERIAL PORT
S1
REFER TO Table 7 Serial Port S1/S2: Port Diagnostic status page 24
SERIAL PORT
S2
REFER TO Table 7 Serial Port S1/S2: Port Diagnostic status page 24