Mitsubishi Electric MELSEC-Q Series User Manual page 244

7 ONLINE MODULE CHANGE
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(f) Before restarting the control, check the following on the Q62HLC. If there is
any problem, refer to Chapter 8 and take a corrective action.
1) The RUN LED is on.
2) The ERR. LED is off.
3) Watchdog timer error flag (Xn0) is off.
4) Error flag (Xn2) is off.
(g) Since the new module is in the default status, the initial settings need to be
configured using a sequence program after the control is restarted.
Before configuring the initial settings, check that the initial setting program
is created correctly.
1) Normal system configuration
Create a sequence program so that the initial settings are configured
when Module ready flag (Xn3) of the Q62HLC turns on.
When the control is restarted, Module READY flag (Xn0) turns on and
the initial settings are configured. (In a sequence program where the
initial settings are configured only for a single scan after RUN, the
initial settings are not configured.)
2) When used on remote I/O network
Include a user device (initial setting request signal) that configures the
initial settings at any timing in a sequence program. After the control is
restarted, turn on the initial setting request signal and configure the
initial settings. (In a sequence program where the initial settings are
configured only for a single scan after a data link start of the remote
I/O network, the initial settings are not configured.)
(5) Restarting control
(a) Select [Diagnosis] - [Online module change] from the menu of GX
Developer to display the Online module change screen again. Click the
[Execution] button and restart the control. Module ready flag (Xn3) turns on.
(b) The Online module change completed screen appears.
MELSEC-Q
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