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Siemens S5-135U/155U User Manual

Page 328

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8-16

System Manual

C79000-G8576-C199-06

Example
Digital input module with 8 inputs (IB 23) or
digital output module with 8 outputs (QB 23).

The address is the sum of binary significances set with the individual coding
switches:

23 = 1 + 2 + 4 + 16 = 2

0

+ 2

1

+ 2

2

+ 2

4

On Setting
(Switch Pressed)

IB 23 (or QB 23)

128

64

32

16

8

4

2

1

ADB7

ADB6

ADB5

ADB4

ADB3

ADB2

ADB1

ADB0

Example
Digital input module with 32 inputs (IB 80) or
digital output module with 32 outputs (QB 80).

The address is the sum of binary significances set with the individual coding
switches:

80 = 16 + 64 = 2

4

+ 2

6

On Setting
(Switch Pressed)

128

64

32

16

8

4

2

1

ADB7

ADB6

ADB5

ADB4

ADB3

ADB2

ADB1

ADB0

IB 80 (or QB 80)

Digital Input/Output Modules