Sil2 Process Cpu Operating Status - Mitsubishi Electric MELSEC iQ-R-R00CPU User Manual

SIL2 Process CPU operating status

The following is a list of SIL2 Process CPU operating statuses.
• RUN state
• STOP state
• PAUSE state
Operation processing based on SIL2 Process CPU operating status
Operation processing based on the SIL2 Process CPU operating status is the same as that of the standard CPU. ( Page
87 Operation Processing by Operating Status)
■Safety communications processing based on SIL2 Process CPU operating status
The following table shows safety communications processing based on the SIL2 Process CPU operating status.
SIL2 Process CPU operating status
RUN state
STOP state
PAUSE state
*1 If the safety operation mode is TEST MODE, output is based on the output hold and clear settings when the status of network modules
(RJ71GF11-T2) for which safety communication settings are specified is CPU STOP. ( Manual for network module used)
*2 Safety communications are not performed if a stop error occurs at the SIL2 Process CPU.
■Operation processing when operating status of the SIL2 Process CPU changes
The following table shows operation processing in the safety program when the operating status of the SIL2 Process CPU is
changed.
SIL2 Process SIL2 Process CPU processing
CPU operating
Safety program
status
STOP  RUN
Executes safety programs.
RUN  STOP
Executes up to the END
instruction and then stops.
RUN  PAUSE
Stops operation after the
execution of one scan.
PAUSE  RUN
Executes the program from the
start.
PAUSE  STOP
Operation remains stopped.
STOP  PAUSE
Operation remains stopped.
*1 Assignment device data for standard/safety shared labels is processed in the same way as operation processing with standard
programs.
*2 Values for safety devices when the SIL2 Process CPU operating status changes are cleared or turn off, regardless of the safety
operation mode.
*3 If the safety operation mode is TEST MODE, output is based on the output hold and clear settings when the status of network modules
(RJ71GF11-T2) for which safety communication settings are specified is CPU STOP. ( Manual for network module used)
Operation processing with standard programs is the same as the following.
Page 88 Operation Processing When Operating Status Is Changed
Safety communications processing
Executes the set safety communications.
Executes the set safety communications, however, send data is turned off (0).
Executes the set safety communications, however, send data is turned off (0).
External output Safety device data
Other than SA\Y
Outputs the value after safety Retains the safety device data
program execution. status immediately before the
RUN state. Clears safety local
devices.
Turns off all safety Retains the device data status
*3
communication outputs. immediately before the STOP
state.
Turns off all safety Retains the device memory
*3
communication outputs. status immediately before the
PAUSE state.
Outputs the value after safety Retains the device data status
program execution. immediately before the RUN
state. Clears safety local
devices.
All safety communication Retains the device data status
*3
outputs remain off. immediately before the STOP
state.
All safety communication Retains the device data status
*3
outputs remain off. immediately before the PAUSE
state.
*1*2
*1
*1
SA\Y
Retains the SA\Y value
immediately before the RUN
state.
Turns off all SA\Y values.
Turns off all SA\Y values.
Retains the device data status
immediately before the RUN
state.
*2
Retains the SA\Y value
immediately before the STOP
state.
Retains the SA\Y value
immediately before the PAUSE
state.
35 BASIC CONCEPT
35.10 Running a Safety Program
35
*2
*2
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