Backing Up The Data; Canceling Errors - Mitsubishi Electric MELSEC iQ-F Series User Manual

9.5

Backing Up the Data

Saving the following information immediately after the occurrence of an error helps analyzing the cause of the error.
• Parameters, programs, and device memory
• Error histories
Backing up parameters, programs, and device memory
The procedure for backing up parameters, programs, and device memory by using an engineering tool is explained below.
[Online] [Read from PLC]
1.
Check the parameters, programs, and device memory to back up.
2.
Click the [Execute] button to read the data.
Backing up devices and buffer memory
The procedure for backing up devices and buffer memory using the engineering tool is explained below.
[Online] [Read from PLC]
1.
Click the "Device Memory" check box.
2.
Click [Detail].
3.
Input character strings in "Device Data Name" and select the devices to back up.
4.
Select the "Buffer Memory Intelligent Module No." and input module number.
5.
Click [OK], and then click [Execute] to read the data from the PLC.
9.6

Canceling Errors

Only continuable errors can be canceled.
If an error is canceled and the CPU module is recovered, the status of SM, SD, or LEDs returns to the status before the
occurrence of the error. After an error is canceled and when the same error occurs again, this error is recorded again in
the error history.
When all errors are cancelled at once, annunciators will also be cleared. To clear annunciators individually, use the
RST instruction. Continuable errors can be canceled by the following method.
Using special relays (SM)
Turning on and off SM50, all errors will be canceled.
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