Delta MS300 Series User Manual page 521

Chapter 13 Warning CodesMS300
ID No. Display on LCD Keypad
54
Action Condition
Action Time
Warning Setting Parameter
Reset Method
Reset Condition
Record
Cause
The program detects internal
source code error during PLC
operation
Warning Name
PLC buffer overflow
(PLor)
Action and Reset
When PLC runs the last command and the command exceeds the maximum
capacity of the program, then PLor warning occurs.
Immediately act when the fault is detected
N/A
Check if the program is correct and download the program again. If the fault
does not exist, the warning automatically clears.
N/A
N/A
1. Disable PLC
2. Reset the PLC program (Pr.00-02 = 6)
3. Enable PLC
4. Re-download the PLC program
512
Description
PLC register overflow
Corrective Actions