6
Installation
and Operation
EDBC250SIO | 2.0
177
Two-channel contact-type sensors
Two-channel contact-type sensors allow different inputs to be connected to the test pulse out-
put of a two-channel sensor. A software module of the safe control unit provides the required
analysis of the input signals.
The software can be used to interconnect any of the safe inputs. Wiring should take account of
the fact that every input signal is allocated to the test pulse output. You must use the configu-
ration to enable the safe inputs you use
►
6.4.3 Input Parameters
.
The process data image of a safe input transfers
•
"0" if a "0" signal is supplied to the input or if an error has been detected;
•
"1" if a "1" signal is supplied to the input or if an error has not been detected.
Refer to section
►
7.2 Safety Function with Two-channel Input for connection examples.