INTRODUCTION
I-E96-607A
5 - 1
SECTION 5 - TROUBLESHOOTING
INTRODUCTION
Troubleshooting the INFI-NET interface modules is limited to
viewing the contents of the error counters (CPU LEDs) and the
module status report from any INFI 90 operator interface. Refer
to the product instruction for your specific interface for infor-
mation on accessing module status reports.
INNIS01 ERROR CODES
The NIS module halts operation and displays an error code if a
module failure or hardware error occurs. Group A CPU LEDs
display error codes. Group B CPU LEDs are off when group A
CPU LEDs are displaying error codes. Refer to Table
for a
list of error codes and corrective action.
Table 5-1. INNIS01 Module Error Codes
Group A LEDs
8
7
6
5
4
3
2
1
Code
Error Condition
Corrective Action
0
0
0
1
0
0
1
1
13
ROM checksum error.
Replace NIS.
0
0
0
1
0
1
1
0
16
Loopback test failure.
Check cabling and termination
unit; replace NIS.
0
0
1
1
0
0
0
1
31
Memory or CPU fault.
Replace NIS.
0
0
1
1
0
0
1
0
32
Address or bus error.
Reset INIIT02/03; replace NIS if
error continues.
0
0
1
1
0
0
1
1
33
Illegal instruction.
0
0
1
1
0
1
0
0
34
Trace/privilege violation.
0
0
1
1
0
1
0
1
35
Spurious/unassigned excep-
tion.
0
0
1
1
0
1
1
0
36
Divide by 0/checksum/ format
error.
0
0
1
1
0
1
1
1
37
Trap instruction.
0
0
1
1
1
0
0
0
38
Invalid dipswitch setting on
INNIS01.
Check dipswitches SW1 through
SW3.
0
0
1
1
1
1
0
0
3C
Termination unit failure.
Check termination unit fuse, power
and relays.
0
0
1
1
1
1
1
0
3E
INNIS01 handshake failure.
Check dipshunt on module mount-
ing unit backplane between
INNIS01 and INIIT02/03. If dip-
shunt exists, replace INNIS01 or
INIIT02/03.
