Mitsubishi Q12PRHCPU - Access to Module Mounted on Extension Base Unit

5 - 139
5.11 Access to Module Mounted on Extension Base Unit
5
REDUNDANT SYSTEM FUNCTIONS
5.11 Access to Module Mounted on Extension Base Unit
Table5.65 shows the access to a module mounted on the extension base unit when
accessing from the control system and when accessing from the standby system.
(To the next page)
Table5.65 Access to Module Mounted on Extension Base Unit
Item
Execution
timing
Name
Access from control system Access from standby system
Backup mode Separate mode Backup mode Separate mode
I/O access
Refresh
At END
processing
Input from input module Execute Execute
-
*5
-
*5
Output from output module Execute Execute Not execute Not execute
Instruction
At instruction
execution
Direct access of input
device (DX)
Executable Executable Inexecutable Inexecutable
Direct access of output
device (DY)
Executable Executable Inexecutable Inexecutable
I/O refresh instruction Executable Executable Inexecutable Inexecutable
Access to
buffer
memory
Refresh
At END
processing
Refresh of intelligent
function module
Executable Executable Inexecutable Inexecutable
Refresh of CC-Link IE
Controller Network module
Inexecutable
*1
Inexecutable
*1
Inexecutable
*1
Inexecutable
*1
Refresh of MELSECNET/H
module
Inexecutable
*1
Inexecutable
*1
Inexecutable
*1
Inexecutable
*1
Refresh of CC-Link master
module
Executable Executable Inexecutable Inexecutable
Device initial value of link
direct device (J \ )
Inexecutable
*1
Inexecutable
*1
Inexecutable
*1
Inexecutable
*1
Device initial value of
intelligent function module
(U \G )
Executable Executable Inexecutable Inexecutable
Instruction
At instruction
execution
Data link instruction Executable Executable Inexecutable Inexecutable
Refresh instruction Executable Executable Inexecutable Inexecutable
Read/write from/to
intelligent function module/
special function module
Executable Executable Inexecutable
• SM1593=ON:
Inexecutable
(An error does
not occur)
• SM1593=OFF:
Stop error
Link direct device (J \ )
Inexecutable
*1
Inexecutable
*1
Inexecutable
*1
Intelligent function module
(U \G )
Executable Executable Inexecutable
Monitor
At END
processing
Buffer memory batch
monitor/device batch
monitor
Executable
*2
Executable
*2
Inexecutable
*4
Inexecutable
*4