37 FUNCTIONS
37.8 Switching Safety Operation Mode
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Safety operation mode switching conditions
The following table lists the conditions under which the safety operation mode can be changed.
How to switch the safety operation mode
The safety operation mode can be switched using the engineering tool.
[Online] [Safety PLC Operation] [Switch Safety Operation Mode]
The execution target of mode switching can be specified from the following options.
For details, refer to the following.
GX Works3 Operating Manual
Safety operation mode
switching direction
Condition
TEST MODE SAFETY MODE The user who operates the mode switching has "Developers" access level or higher, and is currently logged on.
The safety operation mode is currently set to the TEST MODE.
The SIL2 Process CPU operating status is other than RUN.
The SIL2 Process CPU is not in the process of changing operating status.
The following files held by the engineering tool, SIL2 Process CPU, and SIL2 function module match.
• Safety CPU parameter
• Safety module parameter
• Safety program
• Safety FB file
• Safety global label setting file
• Standard/safety shared label setting file
The following files are not being written from another engineering tool.
• Safety CPU parameter
• Safety module parameter
• Safety program
• Safety FB file
• Safety global label setting file
• Standard/safety shared label setting file
SAFETY MODE TEST MODE The user who operates the mode switching has "Developers" access level or higher, and is currently logged on.
The safety operation mode is currently set to SAFETY MODE or SAFETY MODE (wait-for-restart).
The SIL2 Process CPU is not in the process of changing operating status.
Execution target specification Operation
Currently Specified Station Switches the safety operation mode for the CPU module specified in the transfer setup.
Specify Both Systems Switches the safety operation modes for the CPU modules of both systems.
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