Mitsubishi Q01CPU User Manual

12
TROUBLESHOOTING
12.4 Module Change during System Operation
12.4.1 Online module change
12 - 243
9
EMC AND LOW VOLTAGE DIRECTIVES
10
LOADING AND INSTALLATION
11
MAINTENANCE AND INSPECTION
12
TROUBLESHOOTING APPENDICES INDEX
12.4 Module Change during System Operation
This section explains how to change the module online (with power on) without stopping
the system.
12.4.1 Online module change
An online module change
Note12.15
is a function that allows the Q series module mounted on
the main base unit or extension base unit to be changed during system control executed
by the Process CPU or Redundant CPU.Note13
Using an online module change, the module that failed during control can be replaced with
the module of the same model name.
POINT
1. An online module change cannot add a module or change the current module
for another module.
2. When executing an online module change for the Process CPU in the multiple
CPU system, it is necessary to specify "Online module change enable for
other CPU" in the multiple CPU setting of the PLC parameter dialog box.
Also, there are restrictions on the versions of the CPU modules that comprise
the multiple CPU system. Refer to the following manual for details.
QCPU User's Manual (Multiple CPU System)
3. Perform an online module change after confirming that the system outside the
programmable controller will not malfunction.
4. To prevent an electric shock, operating module malfunction, etc., provide a
switch or similar individually cutting-off means for the external power supply of
the module to be changed online.
5. It is recommended to verify that the operations of the unchanged modules will
not be affected by executing an online module change in an actual system
beforehand to confirm the following
• The means and structure that will cut off the connection with the external
device are correct.
• ON/OFF of switches, etc. has no influence.
6. Do not mount/remove the module onto/from base unit or terminal block more
than 50 times (IEC 61131-2 compliant), after the first use of the product.
Failure to do so may cause the module to malfunction due to poor contact of
connector.
Note13
Basic
Universal
UD
Note12.15
High
Performance
The Basic model QCPU, High Performance model QCPU and Universal model QCPU are not
compatible with an online module change.
Note12.15
Basic
High
Performance
Universal
UD

Mitsubishi Q01CPU Specifications

General

Brand	Mitsubishi
Model	Q01CPU
Category	Controller
Language	English