Siemens S5-135U/155U User Manual
Page 422
9-40
System Manual
C79000-G8576-C199-06
Press the individual rockers of the addressing switch downwards with a
ballpoint pen or similar object, but not a pencil.
On Setting
(Switch Pressed)
Addressing Switch
Address Bit
Decimal Significance of
the Address Bit
Adresse (dezimal)
ADB2 is not connected
ADB0 and ADB1 are not assigned
128
64
32
16
8
4
2
1
ADB7
ADB6
ADB5
ADB4
ADB3
ADB2
ADB1
ADB0
Free Field for Label with
Module Address and
marked Switch Settings
Figure 9-14
Labeling of the Addressing Switch
The address under which the module is referenced by the STEP 5 program is
independent of the slot.
For analog input and analog output modules (4 inputs) only the lowest
address (start address) is set. Other addresses (subaddresses) are decoded on
the module.
Note
The start address of the analog module must be a multiple of the double
channel number.
4 channels : 0, 8, 16, 24, ... 248
If one of the inputs or outputs (Channel 0 to 3) of a module is to be
addressed, the relevant subaddress must be specified in the program.
The subaddress of the input or output, based on the start address of the
module, is given by:
Start address + 2 x channel no. = subaddress
Start Address,
Subaddress
Analog Input/Output Modules