448
27 TROUBLESHOOTING
27.1 Checking Module Status
Error information clear
This section explains the factors causing the ERR LED to be turned ON and the error code initialization (clear) for C24.
Factors causing ERR LED to turn ON
When any of the following errors occurs, its error code is stored in the buffer memory corresponding to the interface (CH)
where the error occurred, and the ERR LED turns ON.
Factors causing ERR LED to flash
When any parameter error was detected, the ERR LED flashes, and the buffer memory address which is set out of the range
of the parameter setting value is stored in the error address storage area (Un\G20224 to 20231).
Turning OFF the ERR LED and initializing the error codes
Turn 'Error initialization request' (YE) ON to turn the ERR LED OFF and initialize the error code.
• The buffer memory, which is a factor in turning the LED ON, is initialized.
• The protocol execution logs are not initialized.
Error factor Error code storage buffer memory Applicable protocol
Address Name MC Nonpr
ocedu
ral
Bidire
ctiona
l
Prede
fined
CH1 CH2
Parameter setting error Un\G515 Parameter setting error, mode switch error
status
Mode switching error
On-demand execution error Un\G598 Un\G614 On-demand execution results
Data transmission error Un\G599 Un\G615 Data transmission result
Data reception error Un\G600 Un\G616 Data reception result
Modern function error Un\G545 Modern function error code
MC protocol send error Un\G602 Un\G618 MC protocol send error code
Monitoring device error Un\G8709 Un\G8965 Programmable controller CPU monitoring
function execution result
Predefined protocol function
error
Un\G16450 Un\G16466 Predefined protocol function error code
To Next Page
Loading...
