Control Modules—Network Control Module 200 Series 41
Table 3: Diagnostic Display, Descriptions, and Remedies
Diagnostic
Display
Error
Action
01
Memory Error
(Catastrophic)
Reseat the NIM and cycle power. If the 01 error still
occurs, either the NIM or the NCM is malfunctioning.
If a known, good NIM fails in the slot, replace the
NCM.
02 - 03
Memory Error
(Catastrophic)
Cycle power and perform a cold restart by pressing
the Reset button. If the NCM does not recover (reset
without catastrophic error), replace the module.
04
N2 Port
Internal Error
Cycle power. If the 04 error still occurs, N2
communications are malfunctioning. Replace the
NCM.
05
Communications
Submodule
Internal Error
Cycle power. Typically used for modem, RS-232, or
L2. If the 05 error still occurs, communications
through this submodule slot are malfunctioning.
Replace the NCM.
06
RS-232 Port Internal
Error
RS-232 port will not operate; replace NCM to use.
07
NT Port Internal Error
NT port will not operate; replace NCM to use.
08
Sanity Timer Failure
The NCM can operate normally, but possibly at a
reduced level of system reliability. (Time-of-day may
also be affected if Sanity Timer fails.)
11
Clock/Calendar Chip
Error. NCM may not
keep proper or accurate
time during power down.
Error 11 indicates a timing variance error. Slight
timing errors may be corrected manually. Severe
errors (or no timing functions at all) indicate a
hardware problem sufficient to replace the NCM.
12
ARCNET Internal Error
Cycle power. If the 12 error still occurs,
communications via the N1 LAN are malfunctioning.
To use N1, replace the NCM.
After self-diagnostics are completed, follow the power-related field checks
provided below if operational problems develop. The sections are listed in
the typical order that a user encounters problems.
Power Indicators and Troubleshooting
The power LED on the NCM should turn on at power up and remain on
throughout NCM operation.
1.
If the power LED turns off (and the power supply module is
functioning properly), power is being lost either in the connections
between the power supply module and NCM, or inside the NCM.
•
Inspect the connectors to ensure that the connector pins or wires
have not been bent, broken, or pulled out.
Power Related
Field Checks
