Siemens M7-400 Benutzerhandbuch

13-26

S7-400, M7-400 Programmable Controllers Module Specifications

A5E00069467-07

The base address depends on the interface submodule slot in the expansion
module or the programmable module. See the descriptions “M7-300 Expansions”,
“M7-400 Expansions” or the description of the M7-400 programmable modules for
the slot-dependent base address of the interface submodule.

The I/O address is the sum of the base address and the offset address.

The registers and their meanings and the offset addresses are described below.

Table 13-21

Offset Address Assignments for the IF 961-DIO Interface Submodule

00

H

User data digital input function

DI0 - DI7 (Digital Input)

01

H

User data digital output function

DO0 - DO7 (Digital Output)

02

H

Acknowledgment register

Acknowledge interrupt

03

H

Interrupt register

Read cause of interrupt

04

H

Interrupt enable register

General enable of interrupt

05

H

Selection register rising edge

Interrupt generation at rising edge of
a digital input

06

H

Selection register falling edge

Interrupt generation at falling edge of
a digital input

07

H

Mode register

Set input delay

Tables 13-22 and 13-23 give an overview of the digital input function.

Table 13-22

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

0

User data digital input function

 Read only

Table 13-23

Assignment of the Digital Input (DI) Channels to the Bits (IF 961-DIO)

2

0

DI channel 0

In the range
-30 V to 5 V

In the range

from 13 V to 30 V

 :

 :

:

:

2

7

DI channel 7

In the range
-30 V to 5 V

In the range

from 13 V to 30 V