ABB FSPS-21 - Description of States and Modes

Operaonal
Safe
(Module
passivaon &
reintegraon)
Safe
(Module
passivaon with
a command)
Safe
(Module
passivaon)
Start up
(STO acve)
A
B
RUN
Description of states and modes
The tables describe the FSPS-21 module states and modes and how they are shown in the
PROFIsafe messages. The Status Byte and the profiles are described in detail in chapter
PROFIsafe description (page 113).
The tables refer to several variables that are available to the programmer of an F-Host
program (for example, an AC500-S program in CoDeSys).
DescriptionState
PROFIsafe communication is up and running. Safe stopping function (eg. SS1) is not
requested or it is not yet performed to the end.
Operational
PROFIsafe Control Byte bits in the F-Host to the FSPS-21 module:
• "Active_FV" = 0 (PROFIsafe control byte) ***)
PROFIsafe Status Byte bits from the FSPS-21 module to the F-Host:
• "WD_Timeout" and "CE_CRC" and "FV_activated" = 0 ***)
ABB_PS3 profile bits from the module to the F-Host:
• device_state = 0
***) Bits may/will be active during transition period from operational state to safe state.
PROFIsafe 119