WAGO-I/O-SYSTEM 750
Commissioning 109
750-666/000-003 4FDI/2FDO 24V/10A PROFIsafe V2 iPar
Manual
Version 1.2.0, valid from HW/SW Version 01/01
The
Restart inhibit
parameter is used for the dual channel evaluation of two
digital inputs. The restart inhibit is then only used by the PROFIsafe I/O module if
you have set the value of the
Operating mode
parameter to "Standard" and the
value of the
Dual channel evaluation
parameter to "yes".
You can set the
Restart inhibit
parameter to "Yes" or "No".
If you have set the
Restart inhibit
parameter to "Yes", then the PROFIsafe I/O
module behaves as follows:
A fixed discrepancy error can only be acknowledged if the input signals have
taken the values listed in the following table.
Table 32: Necessary signal states for acknowledgement if the restart inhibit is set to "yes"
Input pair
Digital inputs:
Valence evaluation
I2
I1
I1 & I2
"1"
"0"
"Antivalent"
"0"
"0"
"Equivalent"
I4
I3
I3 & I4
"1"
"0"
"Antivalent"
"0"
"0"
"Equivalent"
If you have set the
Restart inhibit
parameter to "No", then acknowledgement of a
discrepancy error is successful once the deviation from the valence rule on the
digital inputs concerned not longer exists. You can set the value of the
Restart
inhibit
parameter for each input pair separately.
7.4.5.7
Operating Mode Parameter
Evaluation of the input signal state in the "Rotary table" operating mode!
If you have set the
Operating mode
to the "Rotary table" value, the temporal
logic evaluation of the signal state must be performed by a suitable function block
in the safe PLC. Under certain circumstances, you can use the process image of
the digital inputs without the suitable function blocks.
An overview for using PROFIsafe I/O modules in combination with a safe PLC is
summarized in an application note. This application note is available on the
Internet at
in the area "Service > Documentation > Application
Notes...".
You can use the
Operating mode
parameter to choose between safe standard
analysis of the digital inputs (single-channel, two-channel) and the specific
"Rotary table" operating mode.
If you want to use the digital inputs single-channel or two-channel, you must set
the
Operating mode
parameter to the "Standard" value.