35 BASIC CONCEPT
35.10 Running a Safety Program
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35
35.10
Running a Safety Program
This section describes how to execute a safety program. Information not described in this chapter is same as that of the
standard CPU. (
Page 92 MEMORY CONFIGURATION OF THE CPU
For details on the setting method (registration procedure) of safety programs, refer to the following.
GX Works3 Operating Manual
Overview
The SIL2 Process CPU executes standard programs and safety programs, and the SIL2 function module executes safety
programs only. During operations, the SIL2 Process CPU verifies the execution results of safety programs with those of the
SIL2 function module.
Devices/labels that can be used in safety programs
Only safety devices and safety labels can be used in safety programs.
• Safety device:
• Safety Label:
Safety program file
FB file for the
safety program
Safety program file
Standard program file
FB file for the
safety program
FB file for the
standard program
Device/label memory
Data required for programming
SIL2 function module
(Performs safety control only.)
<Program A>
<FB
Ò
>
FB
Safety control
Standard/safety
shared label
Safety device
Safety label
File register
Standard latch device,
standard latch label
Standard label
Standard device
SIL2 Process CPU
(Performs both standard control and safety control.)
<Program B>
<FB α>
<Program A>
<FB
Ò
>
FB
Safety control
Standard control
FB
Data are sent and
received using
the standard/safety
shared label.
Execution results are verified.
Summary of Contents for MELSEC iQ-R-R00CPU
Page 2: ......
Page 151: ...9 MONITOR FUNCTION 9 1 Real Time Monitor Function 149 9 MEMO ...
Page 323: ...18 SEQUENCE SCAN SYNCHRONIZATION SAMPLING FUNCTION 321 18 MEMO ...
Page 330: ...328 20 ROUTING SETTING 20 3 Precautions MEMO ...
Page 423: ...26 BASIC CONCEPT 26 8 State Transition of the Redundant System 421 26 MEMO ...
Page 1014: ...1012 APPX Appendix 15 Added and Enhanced Functions MEMO ...
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