Wiring Examples; Information On The Wiring Examples; Single-Channel Assignment Of The Safe Digital Inputs; Cross Circuit Monitoring Switched On - Leuze electronic MSI 200 Series User Manual

6

Wiring examples

Sensor
Sensor supply
Attainable safety integrity
Configuration
Input xx channel 1/channel 2
Cross circuit monitoring
Leuze electronic
6.1

Information on the wiring examples

In the following examples, clock outputs T0 and T1 are used.
With safe extension module MSI-EM200-8I4IO, these correspond to clock outputs TM0 and
TM1 if they are configured as clock outputs.
Terminals IO0 to IO3 of safe extension module MSI-EM200-8I4IO function as inputs if they are
appropriately configured as inputs.
6.2

Single-channel assignment of the safe digital inputs

With the single-channel assignment of the safe digital inputs, the inputs function independent
of one another.
6.2.1

Cross circuit monitoring switched on

If an input pair is configured single-channel with cross circuit monitoring, the following perma-
nent assignment applies:
– – All "even" inputs I0, I2, ... are permanently assigned to clock output T0.
– – All "odd" inputs I1, I3, ... are permanently assigned to clock output T1.
S1
I0
T0
Figure 6-1 Single-channel assignment of the inputs
Key dates
One-channel
Internally through clock output T0 (clocked) or T1 (clocked)
SIL 1/SILCL 1/Cat. 1/PL c
Example configuration
Configured as
Yes, with test pulse T0 for all "even" inputs I0, I2, ...
Yes, with test pulse T1 for all "odd" inputs I1, I3, ...
Legend:
S1
I0
T0
MSI 100/200
Wiring examples
Safety switches
Input
Clock output
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