Fail-Safe Blocks
Fail-Safe Systems
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8.2 Driver Blocks for F-I/Os
To ensure fail-safe data exchange between the Safety Program and F-I/Os,
additional safety-related information is also transmitted in addition to the actual
user data (process values).
The following driver blocks are available for the transfer of user data with a safety
protocol:
F Channel Drivers
Block Description
F_CH_DI F channel driver for digital input
F_CH_DO F channel driver for digital output
F_CH_AI F channel driver for analog input
F Module Drivers
Block Description
F_M_DI8 F module driver for 8-channel digital input
F_M_DI24 F module driver for 24-channel digital input
F_M_DO10 F module driver for 10-channel digital output
F_M_DO8 F module driver for 8-channel digital output
F_M_AI6 F module driver for 6-channel analog input
The F module drivers belong to the group of F control blocks.
See Also
Common Features of the Driver Blocks