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Siemens Simatic S7-400 User Manual

Page 523

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Interface Submodules

13-27

S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07

Digital Output Function

Tables 13-24 and 13-25 give an overview of the digital output function.

Table 13-24

Offset Address for the Digital Output Function (IF 961-DIO)

Offset

Address

Function

Remarks

1

User data digital output function

Read/write

Table 13-25

Assignment of the Digital Output (DO) Channels to the Bits (IF 961-DIO)

Bit

Function

= 0

= 1

2

0

DO channel 0

0 V

+ 24 V

:

:

:

:

2

7

DO channel 7

0 V

+ 24 V

Acknowledgment Register

The interrupt is acknowledged in this register. Tables 13-26 and 13-27 give an
overview of the acknowledgment register.

Table 13-26

Offset Address for the Acknowledgment Register (IF 961-DIO)

Offset

Address

Function

Remarks

2

Acknowledgment register

Write only

Table 13-27

Meaning of the Bits in the Acknowledgment Register (IF 961-DIO)

Bit

Function

= 0

= 1

2

0

Reserved

:

:

2

6

Reserved

2

7

Acknowledge interrupt

No

Yes

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