TP-6461 1/0834 Section 2 Controller Troubleshooting
Fault or Event Message
See
Section
CheckPossible Cause
Module Status Change
A new accessory module is
detected
Press the reset button to open Reset
New Module screen. Then press Reset
again.
2.7.2
A module has been disconnected Check connections from the controller
to the I/O module assembly and at the
top of each I/O module.
Verify that the module is securely
installed.
If a module has been removed, go to
Set Inputs/Outputs screen and uninstall
the module.
2.7.2
Communication to an installed I/O
module has been lost
Check I/O module connections. 2.7.2
Real-time clock failure on logic
board
If the procedures in Section 2.7.2 fail to
clear the error message, replace the
controller’s logic board.
2.7.2
4.14
Module Status Conflict One type of module was replaced
with another type of module that
has the same address
Follow the procedure in Section 2.7.3 to
uninstall the old module and then install
the new module.
2.7.3
External Fault
Fault condition in customer-
supplied equipment connected to
external input
Identify and correct the cause of the
fault condition.
Manuals
for
connected
equipment
Looose or faulty connection Check connection to external input. ATS OIM