Program Example - Mitsubishi Electric MELSEC iQ-R Series User Manual

Program example

• Master station, standby master station
Classification Label name
Module label RCPU.stSM.bAlways_ON
RCPU.stSM.bAfter_RUN1_Scan_ON
RCPU.stSM.b1sClock
BT11_1.bIn_ModuleFailure
BT11_1.bIn_DataLink
BT11_1.bIn_ModuleReady
BT11_1.bReq_Refresh_StandbyMasterSwitching
BT11_1.bReq_ForcedMasterSwitching
BT11_1.bAcpt_Refresh_StandbyMasterSwitching
BT11_1.bCompl_Refresh_StandbyMasterSwitching
BT11_1.bSts_ForcedMasterSwitchingExecutable
BT11_1.bAcpt_MasterSwitching
BT11_1.bCompl_MasterSwitching
BT11_1.bCompl_ForcedMasterSwitching
BT11_1.bOpe_StandbyMaster
BT11_1.uRslt_Refresh_StandbyMasterSwitching
Label to be Define global labels as shown below:
defined
3 PROGRAMMING
92
3.3 Communication Example Using the Standby Master Function
Description
Always on
Turning on for one scan after RUN
One second clock
Module failure
Own station data link status
Module ready
Refresh instruction at standby master switching
Forced master switching
Refresh instruction acceptance status at standby master
switching
Refresh instruction completion status at standby master
switching
Forced master switching enable status
Master switching request acceptance
Master switching request completion
Forced master switching request completion
Master/standby master operation status of own station
Refresh instruction at standby master switching result
Device
SM400
SM402
SM412
X0
X1
XF
SB0001
SB000C
SB0042
SB0043
SB0046
SB005A
SB005B
SB005D
SB007B
SW0043