Siemens S7-400 Benutzerhandbuch

A-9

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

The figure below shows the structure of data record 1 (bytes 3 and 4) for the
parameters of the digital output modules.

You enable a parameter by setting the corresponding bit to “1”.

7 6

0

5 4 3 2 1

7 6

0

Enable substitute value 1 on channel 31

5 4 3 2 1

Enable substitute value 1 on channel 23

Enable substitute value 1 on channel 22

Enable substitute value 1 on channel 21

Enable substitute value 1 on channel 20

Enable substitute value 1 on channel 19

Enable substitute value 1 on channel 18

Enable substitute value 1 on channel 17

Enable substitute value 1 on channel 16

Enable substitute value 1 on channel 24

Enable substitute value 1 on channel 25

Enable substitute value 1 on channel 26

Enable substitute value 1 on channel 27

Enable substitute value 1 on channel 28

Enable substitute value 1 on channel 29

Enable substitute value 1 on channel 30

Bytes 3 and 4 are not relevant for SM 421; DO 16 

 

  20-125 VDC/1.5 A

Figure A-4

Data Record 1 for Parameters of the Digital Output Modules