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Rules Governing the Use of the S5-115F
Figure 10-8 shows the connection of two-channel sensors. (two-channel configuration through-
.
out)
Corresponding sensors of subunit A and B are connected to DIs with identical addresses and report
the same process state.
Subunit A
DI
430 - 7LA
435 - 7LC
436 - 7LC
. . .
Sensor
Sensor
P
Figure 10-8. Type 2 DI, Safety-Related, Intermittent: Two-Channel Sensors
Permissible modules
Module
430-7LA DI
435-7LC DI
436-7LC DI
Note
After intervals greater than the second error occurrence time, you must check to see
whether the Type 2 DI modules can still recognize a low signal.
You can save yourself these checks if you configure the module as Type 3.
10-20
. . .
failsafe
32 *
failsafe
8 * 115 V, not connected to common 0 V
failsafe
8 * 230 V, not connected to common 0 V
Subunit B
DI
as in
subunit A
. . .
Sensor
Sensor
P
Characteristics
24 V, connected to common 0 V
potential in groups of 8, P input
potential
potential
S5-115F Manual
. . .
EWA 4NEB 811 6148-02
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