Checking Programs
Address
A294
The type of task and the task number at the
point where operation stopped will be stored
here if operation stops due to a program error.
FFFF Hex will be stored if there are no active
cyclic tasks in a cycle, i.e., if there are no cyclic
tasks to be executed.
A298/A299
The program address at the point where opera-
tion stopped will be stored here in binary if
operation stops due to a program error.
If the END(001) instruction is missing (A29511
will be ON), the address where END(001) was
expected will be stored.
If there is a task execution error (A29512 will be
ON), FFFFFFFF Hex will be stored in A298/
A299.
70
address will be stored in A298/A299. The cause of the program error can be
determined from this information.
Description
Note If the Error Flag or Access Error Flag turns ON, it will be treated as a program
error and it can be used to stop the CPU from running. Specify operation for
program errors in the PLC Setup.
Stored Data
Cyclic task: 0000 to 001F Hex (cyclic tasks 0 to 31)
Interrupt task: 8000 to 80FF Hex (interrupt tasks 0 to 255)
A298: Rightmost portion of program address
A299: Leftmost portion of program address
Section 2-3