33 FUNCTIONS
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33
33 FUNCTIONS
This chapter describes the functions added to the Safety CPU and the functions different (modified or restricted) from the
standard CPU. Functions not described in this chapter are the same as those described in PART 2.
For the availability of Safety CPU functions, refer to the following.
MELSEC iQ-R CPU Module User's Manual (Startup)
Function Description Reference
Function added to
the Safety CPU
Safety operation mode There are two safety operation modes: TEST MODE and
SAFETY MODE. One mode is for changing the safety
program or safety parameters, and the other is for operating
the system as a safety system.
Page 537 Safety
Operation Mode
Continuous RUN prevention in TEST
MODE
Prevents the Safety CPU from running continuously for a long
time in TEST MODE.
Page 541 Continuous
RUN Prevention in
TEST MODE
Safety diagnostic function Self-diagnostic function of the Safety CPU Page 542 Safety
Diagnostic Function
Safety data identify check Checks if the project data created using the engineering tool
and the data in the Safety CPU are the same, and confirms
that the program executed in SAFETY MODE is the one
written by the user.
Page 543 Safety Data
Identify Check
Safety communication function Communicates data between the Safety CPU and modules
supporting safety functions using safety protocols.
Page 543 Safety
Communication
Function
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