Siemens SIMATIC S5-95F - Page 344

Interrupt Processing S5-95F
Example 3: Two sensors, S1a and S1b, are to be connected to interrupt input I 59.0 (type C).
Figure 12-3. Connecting Two Independent Sensors to an Interrupt Input
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S1a
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I 59.0
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M (ground)
Example 4: Two sensors, S1a and S1b, with line monitoring compared with other signal lines via
test DQ 33.1, are to be connected to interrupt input I 59.0 (type E).
Figure 12-4. Connecting Two Independent Sensors and a Line Monitor to an Interrupt Input
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OUT
12× 24 V DC
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IN
16× 24 V DC
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DIGITAL
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Subunit B
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DQ33.1
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It is also possible
to connect other
inputs from IB 59.
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Note
A separate test DQ bit is required for the DI line test. You may only use this test DQ bit
for monitoring DIs from IB 59. DIs from other input bytes must not be connected to this
test DQ bit.
12-8 EWA 4NEB 812 6210-02