GFK-2721A
Chapter 4 Diagnostics
4-7
4
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 or not 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 Proficy Machine Edition may
show new alarms occurring before previous alarms clear. For example, if field power is restored
on an IC200ALG240, new low level alarms may arrive before the clear of the Loss of User
Power.
The IC200MDL730 module requires manual intervention to clear fault conditions. The
application can use the PROFINET Scanner’s status and control bits Clear Faults and Clear
Faults Acknowledge to clear such faults.
