Siemens S5-135U/155U - Manual (Page 328)

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