Mitsubishi Q12PRHCPU - Page 223

5
REDUNDANT SYSTEM FUNCTIONS
5.11 Access to Module Mounted on Extension Base Unit
5 - 140
1
OVERVIEW
2
SYSTEM CONFIGURATION
3
TRACKING CABLE
4
PROCEDURE FOR STARTING UP A REDUNDANT SYSTEM
5
REDUNDANT SYSTEM FUNCTIONS
6
REDUNDANT SYSTEM NETWORKS
7
PROGRAMMING CAUTIONS
8
TROUBLESHOOTING
* 1: CC-Link IE Controller Network, MELSECNET/H module cannot be mounted to the extension
base unit.
* 2: An error code (4248
H
) is returned to the request source when system switching occurs during
monitoring.
* 3: An error (OPERATION ERROR: 4122) occurs.
* 4: Accessing to a module mounted on the extension base unit from the standby system is disabled.
When buffer memory batch monitor or device batch monitor is executed from GX Developer, the
following message box is displayed.
* 5: Input (X) from the input module on the extension base unit will be an undefined value.
Table5.65 Access to Module Mounted on Extension Base Unit (Continued)
Item
Execution
timing
Name
Access from control system Access from standby system
Backup mode Separate mode Backup mode Separate mode
Dedicated
instruction
Dedicated
instruction
At instruction
execution
Intelligent function module
(U \G )
Inexecutable
*3
Inexecutable
*3
Inexecutable
*3
Inexecutable
*3
1) When executing buffer memory batch monitor 2) When executing device batch monitor