INTRODUCTION
I-E96-310B
5 - 1
SECTION 5 - TROUBLESHOOTING
INTRODUCTION
This section explains the error indications and corrective
actions for the IMDSO01, IMDSO02 and IMDSO03 Digital Out-
put Modules (DSO).
ERROR INDICATIONS
Troubleshooting is limited to viewing the faceplate LEDs and
the module status report from any INFI 90 operator interface.
Refer to the product instruction for the operator interface used
for information about accessing module status reports.
Module Status LED
The module status LED has three possible states to indicate
normal operation and error conditions. Table
lists the LED
states, error indication, probable causes, and corrective
actions.
CAUTION
Disable the module output signals before removing the mod-
ule. Damage to the module may result.
ATTENTION
Il est nécessaire de désactiver les signaux de sortie du module
avant de le retirer de sa position. Un manquement à cette pré-
caution pourrait endommager le module.
Table 5-1. Module Status LED Error Indications and Corrective Actions
LED State
Error Indication
Probable Cause
Corrective Action
Green
I/O module operating nor-
mally and
communicating with the
control module
Normal operation
No action required
Off
I/O module not respond-
ing
Address set by
dipswitch S1 not the
same address in con-
trol module configura-
tion (specification S1 of
function code 83)
Change address on dipswitch S1 to
match address in specification S1 of
function code 83
or
Change address in specification S1 of
function code 83 to match address set
by dipswitch S1
Dipshunt not installed
between control mod-
ule and I/O module
Verify dipshunt is properly installed in
the I/O expander bus socket on the
module mounting unit backplane
between the control module and the
I/O module
