User Manual
Chapter 4
GFK-2721B
Sep 2019
Diagnostics
41
Channel
Error
Type
Diagnosis
Alarm
Type
Module
or
Channel
Error
Cause
Fault Text
Recommendation
mode on an
ALG240
with < 2mA
input
-Verify output is
within range
(remove shorts)
259
Channel
Diagnosis
Appears /
Disappears
Module
Nonvolatile
Store Fault.
Non-Volatile
Store Failed
There are no
corrective actions for
this. Try store again
or fix hardware.
260
Channel
Diagnosis
Appears /
Disappears
Channel
Wiring Fault.
RTD
measurement
s
are such that
wiring
problems are
suspected
Wiring Fault
Verify RTD wiring
and configuration.
261
Channel
Diagnosis
Appears /
Disappears
Module
Thermistor
fault.
The
thermistor in
the
thermocouple
carrier is out
of range
Thermistor
Fault
Verify the
thermocouple
carrier.
768
Channel
Diagnosis
Channel
A PROFIBUS
slave is not
connected to
IC200BEM003
PROFIBUS DP
Master
module
Loss of
Check PROFIBUS DB-
9 connector and
cable on
IC200BEM003
module and the
slave.
or,
Wait for a time when
the PROFIBUS data
rate is set very low.
4.2.3
Clearing Faults on VersaMax Analog Modules
The VersaMax PROFINET Scanner clears alarms as soon as the underlying condition returns
to normal.
For some VersaMax modules such as the IC200ALG240, IC200ALG331, IC200ALG620, and
IC200ALG630, the VersaMax PROFINET Scanner automatically checks every five seconds to
see whether a module error condition is still present. When these modules are checked
periodically, a historical log of alarms such as the IO Fault log in PAC Machine Edition may
show new alarms occurring before previous alarms clear. For example, if field power is