Mitsubishi Electric MELSEC iQ-R Series Manual page 19

■Changing a module directly
[When the system is configured using a CPU module]
Step in online module change
Checks before replacement
Module removal
Module mounting
Module recognition
Module control start
*1 The status of online module change is stored.
0: Normal operation
1: Module selection in progress
2: Module selection completion
3: Module removal in preparation
4: Module removal ready
5: Module removal completion
6: Module mounting completion
7: Module recognition in progress
8: Module recognition completion
9: Module control resumption in progress
*2 If a continuation error (the ERROR LED turns on) has occurred before online module change, the ERROR LED remains on during the
module change.
*3 A failure in the module can cause the status to be different from the description above.
*4 As a module is removed by means of the direct change, the CPU module enters the following state: the READY LED flashes; a module
verification error occurs; and the ERROR LED turns on. Even though the direct change is completed successfully, the module
verification error is not cleared and the ERROR LED remains on.
*5 Turning off the ERROR LED requires the error to be cleared by using the module diagnostics of the engineering tool or other means.
Change in 'Online module
*1
changing status' (SD1617)
0
0  5
5  7
7  9
9  0
LED status on CPU module
READY LED ERROR LED
ON OFF
ON  Flashing (interval OFF  ON
of 400ms)
Flashing (interval of ON
400ms)
Flashing (interval of ON
400ms)
ON  OFF
Flashing (interval of
400ms)  ON
3 REPLACEMENT PROCEDURE
LED status on target
*3
module
*2
RUN LED
ON
*4

OFF
OFF  ON
*5
ON
3.1 Specifications
3
17