Appendix 7 List Of Safety Special Register Areas - Mitsubishi Electric MELSEC iQ-R-R00CPU User Manual

Appendix 7
The following table lists items in the list.
Item
No.
Name
Description
Details
Set by (setting timing)
CPU
*1 As an operation from the GOT or other external devices, only data read is available.
Do not change the data set by the system in a program or by a device test. Doing so may result in system
down or communication failure.
List of Safety Special Register Areas
Description
Safety special register number
Safety special register name
Data stored in the safety special register
Detailed description of the data stored
Set side of data (system or user) and timing when data is set by the system
<Set by>
• S: System
• U: User (safety program, engineering tool)
• U/S: User and system
<Set timing>
• Every END: Data is set every time END processing is performed.
• Initial: Data is set when initial processing is performed (e.g. powering on the system, changing the operating status from
STOP to RUN).
• Status change: Data is set when the status is changed.
• Error: Data is set when an error occurs.
• Instruction execution: Data is set when an instruction is executed.
• Request: Data is set when requested by a user (using the safety special relay).
• Switch change: Data is set when the switch of the CPU module is changed.
• Card insertion/removal: Data is set when an SD memory card is inserted or removed.
• Writing: Data is set when a user performs a writing operation.
• During END: Data is set when END processing is performed.
The following shows the supported CPU modules. Each of the CPU module is represented by the following symbols.
• Rn: Programmable controller CPU
• RnP: Process CPU
• RnPSF: SIL2 Process CPU
• RnSF: Safety CPU
• ALL: All the above CPU modules
*1

Appendix 7 List of Safety Special Register Areas

A
APPX
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