Omron CX-PROCESS MONITOR PLUS V2 - 01-2007 Operation Manual page 246

Troubleshooting
Phenomenon
An illegal response was received from
the Net@, Node@ PLC.
A timeout occurred in communica-
tions with an LCB registered at Net@,
Node@.
A timeout occurred in communica-
tions with an LCU registered at Net@,
Node@, Unit@.
An illegal response was received from
an LCB registered at Net@, Node@.
An illegal response was received from
an LCU registered at Net@, Node@,
Unit@.
The LCB model registered at the
Net@, Node@ is incorrect.
The LCU model registered at Net@,
Node@, Unit@ is incorrect.
The EM bank number for the LCB
registered at Net@, Node@ is incor-
rect.
The HMI interface setting for the LCB
registered at Net@, Node@ is incor-
rect.
Block Execution Error is displayed in
the System Monitor Messages.
Unit Address Setting Disagrees With
Actual Unit Number is displayed in
the System Monitor Messages.
ERROR CODE: is displayed during
Loop Control Unit Run/stop in the
System Monitor Screen.
An address error message is dis-
played on the System Monitor
Screen.
Cause
An illegal response was received from
the CPU Unit.
A timeout occurred in communications
with the Loop Controller.
An illegal response was received from
the Loop Controller.
The Loop Controller model is incorrect.
The EM bank number used by the LCB
is incorrectly set.
The HMI interface settings for the LCB
are not enabled.
An execution error has occurred in the
Function Block data downloaded to the
Loop Control Unit.
The actual Loop Control Unit's address
and the node PLC's Unit address in the
System Monitor Builder Screen do not
agree.
The FinsGateway setting or the network
setting is incorrect.
It's possible that the ladder program or
another Unit is writing data to the area
of memory used for system information.
The system information is stored in the
following areas.
DM 16020 to DM 16044 for the Loop
Control Unit
20 words from the first word used for the
HMI for the Loop Control Board
Action
Check to make sure that the FinsGate-
way settings are correct.
Check for an error at the CPU Unit and
remove the cause of the error if neces-
sary.
Check to make sure that the Loop Con-
troller is correctly installed.
Check to make sure that the Loop Con-
troller is correctly installed.
Check for an error at the Loop Control-
ler.
The registered Loop Controller is not
the one that is connected. Check the
model.
The EM bank numbers that can be used
by Loop Control Boards are 0 to C. Set
a number within this range.
The CX-Process Monitor Plus will not
operate correctly if the HMI interface
settings for the LCB are not enabled.
Enable the HMI interface settings.
1. Click the E Button on the Loop Con-
trol Unit in the System Monitor
Screen.
2. Click the Execution Error Button in
the Function Block Error Dialog Box.
3. Check the Execution error's Function
Block using the Details Of Function
Block Error Dialog Box.
4. Correct the settings for the relevant
Function Block using CX-Process
Tool.
Make sure the actual Loop Control
Unit's address and the System Monitor
Builder's node PLC Unit's address
agree.
Correct the FinsGateway setting and
the network settings.
Check the ladder program and Unit con-
figuration to see if the system informa-
tion area is being written to.
Section 6
231