ABB FSO-21, Руководство пользователя

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218 PROFIsafe
Safe (Module
passivation) The FSO application is running and there has been an error in the
PROFIsafe communication.
The FSO module and, as a result, all its I/O channels are passivated.
Possible reasons for module passivation are:
1. PROFIsafe communication failure (CRC error)
2. PROFIsafe watchdog timeout exceeded.
The drive is stopped using the configured method. In the end, the drive
STO is activated. The fail-safe value “0” is set to all I/O channels.
If the connection to the PROFIsafe F-Host is possible, the fail-safe value
“0” is transferred to the safety PLC for all I/O channels.
If the PROFIsafe communication is broken, the safety application
continuously attempts to establish a communication to the safety PLC.
A state transition to another RUN state is possible only if the detected
error
has been solved.
PROFIsafe Status Byte bits in the F-Host for the FSO module
(if communication is possible):
• OA_Req_S = 0
• FV_activated_S = 1
• Device_Fault = 0
• CE_CRC = 1, in case of a communication error,
CE_CRC = 0, otherwise
• WD_timeout = 1, in case of a watchdog timeout,
WD_timeout = 0, otherwise
ABB_PS1 or ABB_PS2 profile bits in the F-Host for the FSO module:
• FSO_mode.1 = 0
• FSO_mode.0 = 1
• SF_end_ack_req_local = 0
• SF_end_ack_req = 0
• FSO_state = 1
State Description