TROUBLESHOOTING
ERROR INDICATIONS AND CORRECTIVE ACTION
5 - 2
I-E96-313A
®
Master Module Errors
The master module performs status checks on the DSO. An
error will appear in the report function of an operator interface.
Refer to the Product Instruction for the operator interface you
are using for an explanation of these reports.
Function Code (FC) 83 output block N in the master module
configuration is the DSO status flag (logic 0=good; logic 1=bad).
You can use an operator interface to monitor this block. If the
status flag is a logic 1, check the front panel module status
LEDs and the operator interface report function to determine
corrective actions.
NOTE: If FC 83 specification 3 is set to 0, the master module will trip
when the DSO module fails. Changing specification 3 to a 1 allows
the master module to continue to operate if any DSO error condition
exists.
The address set on address switch (S1) and in the master mod-
ule configuration must be the same. The master module gener-
ates a
MISSING SLAVE MODULE
error if they do not match.
Verify that the address set on S1 is the same as the address in
FC 83 specification 1. If not:
5. Remove the module and change the setting of S1 to corre-
spond with the master module configuration (refer to
Off
(continued)
No power to slave mod-
ule
Module not completely inserted
in MMU
Verify module is completely
inserted in MMU: faceplate flush
with MMU and captive retaining
screws latched
Red
Bus fault timer error
(
time-out)
Slave expander bus clock failure Check master module for proper
operation
Dipshunt not installed between
master and slave module
Verify dipshunt is installed in the
slave expander bus socket on
the MMU backplane between
master and slave module
Table 5-1. Status LED Indications and Corrective Actions
(continued)
LED State
Indication
Probable Cause
Corrective Action
CAUTION
Disable the digital output signals before removing the module
to prevent damage to the edge connector (P3) pins.
ATTENTION
Invalider les signaux de sortie numerique avant de retirer le
module afin d'eviter d'endommager les broches du connecteur
plat (P3).