Variant 2: User Acknowledgement Via "Oa_Req" And "F_Ack; Figure 38: Schematic Representation For User Acknowledgement Via "Oa_Req" And "F_Ack - WAGO -I/O-SYSTEM 750 Manual

120 Diagnostics
9.3.2 Variant 2: User Acknowledgement via "OA_Req" and
"F_Ack"
For safe PLCs that offer the safe application no access to the "OA_Req", only
PROFIsafe communication errors can be acknowledged via the "OA_Req" bit in
the PROFIsafe control byte. To acknowledge other errors, the F I/O module
provides an acknowledgement via the "F_Ack" in the output process data.
For this variant, the acknowledgement request is only displayed for PROFIsafe
communication errors by the PROFIsafe status display element to the F I/O
module. For other errors, the acknowledgement request is not displayed by the
PROFIsafe status display element. The acknowledgement request for these
errors is only displayed by the group error display element (red) and channel
status (red) of the F I/O module.
To acknowledge both PROFIsafe communication errors and other errors with one
button, the "User Acknowledgement" signal must affect the "OA_Req" and
"F_Ack" bits. The figure below provides a schematic representation of this variant
for user acknowledgement.

Figure 38: Schematic Representation for User Acknowledgement via "OA_Req" and "F_Ack"

Manual
Version 1.4.2, valid from HW/SW Version 01/02
750-667/000-003 4FDI/4FDO 24V/2A PROFIsafe V2 iPar
WAGO-I/O-SYSTEM 750