7
1. Error Message 7-1
Error Correction
1. Error Message
There are five kinds of error messages displayed on the POD:
1. Communication error
2. Check
3. Warning
4. SYSTEM ERROR
5. Touch switch is active
1. Communication Error
* If the above error messages are displayed on the unit without establishing communication 
between POD and PLC, test the solution of remark “1.”
If the error occurs suddenly in communication, test the solution of remark “2.”
SYSTEM
F2
F3
F4
F5
F1
POWER
MENU
Communication Error
Time-Out
SYSTEM
F2
F3
F4
F5
F1
POWER
* When you go to [Comm. Parameter], bring 
up the [Detail] tab window and set [Continue] 
for [Comm. Err. Handling], a screen like the 
one shown below is displayed.
Error Message Contents Solution Remarks
Time-Out
Although a request to send is given to 
the PLC, no answer is returned within 
the specified time.
1. Check the communication parameters.
2. Check the cables and wiring.
1
3. Data may be disrupted because of noise.
Fix noise.
2
Parity An error occurred in parity check.
1. Check the cables and wiring. 1
2. Data may be disrupted because of noise.
Fix noise.
2
Framing
Although the stop bit must be [1], it is 
detected as [0].
1. Check the communication parameters.
2. Check the cables and wiring.
1
3. Data may be disrupted because of noise.
Fix noise.
2
Overrun
After one character is received, the next 
character is received before internal 
processing is completed.
1. Check the communication parameters. 1
2. Data may be disrupted because of noise.
Fix noise.
2
Check Code
The check code in the PLC response 
was not correct.
1. Check the communication parameters. 1
2. Data may be disrupted because of noise.
Fix noise.
2