Parameter Two-Channel Analysis Ix & Ix+1 - WAGO -I/O-SYSTEM 750 Manual

WAGO-I/O-SYSTEM 750
750-667/000-003 4FDI/4FDO 24V/2A PROFIsafe V2 iPar
8.3.4.3 Parameter Two-Channel Analysis Ix & Ix+1
The Two-channel analysis parameter is used to switch the two-channel analysis
of the digital inputs on or off. The value of the parameter can be set to "yes" or
"no". You can set the Restart barrier parameter to "yes" or "no". If you have set
the value of the operating mode parameter to "Rotary table", you must set the
Two-channel analysis parameter to "no".
Depending on the value of the Two-channel analysis parameter, the signal
states of the Ix and Ix+1 inputs are analyzed differently (normal, two-channel),
reproduced in the process image and transferred to the safe PLC.
If you have set the Two-channel analysis 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 Two-channel analysis parameter to "yes", the respective
digital inputs Ix and Ix+1 are combined into an input pair by the F I/O module.
The signal states of the digital inputs are analyzed based on the rule set using
the Valence analysis parameter and applied to the process image as 0 signal or
1 signal (see Valance Analysis Parameter section).
The F 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 two-channel analysis parameter for each input pair
separately.
If the two-channel analysis is set to "yes", then the Short circuit test
parameter must be the same!
If you have set the Two-channel analysis 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 F 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 correction is made.
Version 1.4.2, valid from HW/SW Version 01/02
Commissioning 97
Manual