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Siemens SIMATIC S5-115F User Manual

Siemens SIMATIC S5-115F
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S5-115F Manual Rules Governing the Use of the S5-115F
10.9.5 Type 3 Digital Input Modules
Type 3 DIs have the following characteristics:
Safety-related
The input signal can be intermittent or non-intermittent
They are operated in both subunits A and B (in two-channel configuration) and must have the
same module address in both subunits.
The operating system checks the DI inputs once per test cycle to see if the DI modules can read
in a ”0” signal. To make the test, the sensor supply to deactivatable sensors is switched off and
non-deactivatable sensors are switched back on. Additional check digital output modules
(CH DQs) are required for this.
Read loops with L PY and L PW are illegal in OB 2 and OB 13.
Connecting deactivatable sensors
Figure 10-9. Type 3 DI, Safety-Related, Non-Intermittent: Single-Channel,
Deactivatable Sensors
. . .
. . .
Subunit A Subunit B
Sensor
451 - 7LA
458 - 7LA
458 - 7LB
456 - 7LB
CH DQ
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DI
430 - 7LA
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435 - 7LC
436 - 7LC
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DI
430 - 7LA
434 - 7LA
435 - 7LC
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EWA 4NEB 811 6148-02
10-21

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Siemens SIMATIC S5-115F Specifications

General IconGeneral
BrandSiemens
ModelSIMATIC S5-115F
CategoryController
LanguageEnglish

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