Data Sheet for Product

13
Siemens CB1Q3950en
Smart Infrastructure 2020-06-08
Addressing with DIP switches
The extension module is equipped with DIP switches for communication with the controller.
Switches 1, 2, 3, 4, and 5 are configurable to set the slave address, while switch 6 acts as
peripheral bus termination. When the extension module operates as the termination in the
network, switch 6 must be set to "ON"
The bit order for the switches is from 5 to 1. The lowest bit is 5 while the highest bit is 1. The
following table shows the logic of slave address:
Switch 1 2
4
Switch 2 2
3
Switch 3 2
2
Switch 4 2
1
Switch 5 2
0
By combining switches 1, 2, 3, 4 or 5, a maximum of 31 slave addresses can be configured.
The configuration formula is as follows: 24+23+22+21+20=31.
Below are some configuration examples:
DIP switch configuration of extension module
Slave address
(controller)
Switch 1 Switch 2 Switch 3 Switch 4 Switch 5 Schematics
1 Off Off Off Off On
2 Off Off Off On Off
3 Off Off Off On On