Siemens S5-135U/155U - Manual (Page 423)

9-41
System Manual
C79000-G8576-C199-06
Example:
Analog input module with 4 inputs
The address is the sum of the significances set with the individual coding
switches.
160 = 128 + 32 = 2 7 + 2 5
IB 160
128
64 32 16
8 4 2 1
ADB7 ADB6 ADB5 ADB4 ADB3 ADB2 ADB1 ADB0
On Setting
(Switch Pressed)
A module with 4 inputs (Channel 0 to 3) and start address 160 reserves the
address range from
160 to address 160 + 3 x 2 = 166
In this example, the next free address for another module is 168.
Addresses already assigned must not be set again.
Example:
On an analog input module with start address 160 (IB 160 = input byte 160),
input channel 3 is to be scanned by the program.
Step Action
1 Affix the self-adhesive label with address 160 on the free field
under the addressing switch on the module. ADB 5 and ADB 7
are marked on the label.
2 Press the appropriate rockers of the addressing switch down on
the side marked by a dot on the module cover. Set the other
rockers to the opposite setting. This way sets the start address of
the module.
ADB 5 and ADB 7 results in 2 5 + 2 7 = 32 + 128 = 160
3 Enter the address 160 + 3 x 2 = 166 in the program for input
channel 3.
Analog Input/Output Modules