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CHAPTER 3 CPU MODULE FUNCTIONS
3
3.
26
M
odule E
rror
Collect
io
n F
unct
ion
3.26
Module Error Collection Function
This function collects errors occurred in the connected intelligent function modules in the CPU module. By storing the
errors in a memory that can hold data in the event of power failure, the errors can be held even after power-off or reset.
(1) Supported module
The CPU module collects errors occurred in the connected intelligent function modules. The CPU module does
not collect errors of those modules on other stations in the network.
(2) Timing when module errors are collected
Module errors are collected in END processing. Executing the COM instruction does not collect errors.
(3) Storing module errors
The module errors can be stored either the system memory
*1
or the standard RAM. The errors are stored
separately from error history (CPU module) data.
*1 The memory is managed inside the system.
CPU module System memory Standard RAM
L02CPU, L26CPU-BT 100 (fixed) 1000 (fixed)
Programming tool
[Example of screen display]
Error history display
19:29
19:33
19:34
19:36 Module A
CPU
Module B
Module A
Error A1
Error C1
Error B1
Error A2
Time Module in error Error code
Error history (CPU module)
Module error log
Time Module in error Error code
19:29
19:34
19:36 Module A
Module B
Module A Error A1
Error B1
Error A2 19:33 Error C1
CPU
Module A
Module B
19:33 Error C1 occurred!
19:29 Error A1 occurred!
19:36 Error A2 occurred!
19:34 Error B1 occurred!
Error history (CPU module including built-in I/O and built-in
CC-Link) and error log (intelligent function module) are
displayed on one screen.
Errors that occurred in the entire system can be monitored
in reverse chronological order.