Parameter Dual Channel Evaluation Ix & Ix+1 - WAGO -I/O-SYSTEM 750 Series Manual

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8.3.4.3 Parameter Dual Channel Evaluation Ix & Ix+1
The Dual channel evaluation parameter is used to switch the dual channel
evaluation of the digital inputs on or off. The value of the parameter can be set to
"yes" or "no". If you have set the value of the operating mode parameter to
"Rotary table, you must set the Dual channel evaluation parameter to "no".
Depending on the value of the Dual channel evaluation parameter, the signal
states of the Ix and Ix+1 inputs are analyzed differently (normal, dual channel),
reproduced in the process image and transferred to the safe PLC.
If you have set the Dual channel evaluation parameter to "no", then the signal
states of the digital inputs are transmitted independently, i.e., single-channel
without analysis to the safe PLC (see Process Image section).
If have you set the Dual channel evaluation parameter to "yes", the respective
digital inputs Ix and Ix+1 are combined into an input pair by the PROFIsafe I/O
module. The signal states of the digital inputs are analyzed based on the rule set
using the Valence evaluation parameter and applied to the process image as 0
signal or 1 signal (see Valence Evaluation Parameter section).
The PROFIsafe I/O module can be used to create two input pairs from the four
digital inputs.
• Input pair 1: digital input I1 & I2
• Input pair 2: digital input I3 & I4
You can set the value of the Dual channel evaluation parameter for each input
pair separately.
If the Dual channel evaluation is set to "yes", then the Short circuit test
parameter must be the same!
If you have set the Dual channel evaluation parameter to "yes" for two digital
inputs, then you have to set the value of the Short circuit test parameter to the
same for both digital inputs concerned. The PROFIsafe I/O module checks your
setting after transferring to the I/O module and makes automatic corrections if
necessary by setting the value to "active" for both digital inputs. The automatic
correction is displayed in the WAGO parameterization tool. You can set the
values of both digital inputs to the same value after the automatic correction is
made.
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WAGO-I/O-SYSTEM 750
753-661/000-003 4FDI 24V PROFIsafe V2 iPar
Version 1.4.0, valid from HW/SW Version 01/02
Manual