Connection examples of safe inputs
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7.4.2
Cross-circuit monitoring disabled, supply through a clock
output or external supply
Figure 7
-
10
2-channel non-equivalent assignment of the inputs,
supply through OUT_T1(T2), cross-circuit monitoring disabled
Figure 7
-
11
2-channel non-equivalent assignment of the inputs:
external supply
Basic specifications
Typical parameterization
S1, S2
OUT_T1(T2)
Switching elements
Supply through OUT_T1
or
OUT_T2
S1, S2
+24 V
Switching elements
Supply through external 24 V
S1
S2
IN _C 1
0 H
IN _C 2
0 H
OUT_T1(T2)
S1
S2
IN _C 1
0 H
IN _C 2
0 H
+24 V
Sensor
2-channel non-equivalent
Sensor supply
– Internally through clock output OUT_T1
or
OUT_T2 (clocking disabled)
– External (24 V)
Achievable
SIL/SILCL/Cat./PL
SIL 3/SILCL 3/Cat. 3/PL d
Parameterization
Parameterized as/value range
Comment
Input xx, channel 1/channel 2
Assignment
Used, 2-channel non-equivalent
Mandatory setting
Filter time (t
Filter
)
3 ms
Application-specific
Symmetry
100 ms
Application-specific
Start inhibit due to symmetry
violation
Enabled
Application-specific
Cross-circuit monitoring
Disabled
Mandatory setting
