Hello Avinash Banda;

It is possible to assign IP addresses using a CP 443-1 Advanced communication processor.

You can download the link to the manual of the CP 443-1 Advanced in the following discussion:

https://sieportal.siemens.com/en-ww/support/forum/posts/dhcp-on-s7400-cpus/105603

See section 6.5 for an explanation of the use of DHCP with a CP 443-1 Advanced.

Hope this helps,

Daniel Chartier

Hello Avinash Banda;

Looks like you need a CP 443-1 Advanced to use DHCP on your S7-400.

Here is an extract from the manual I suggested you look at:

Hope this helps,

Daniel Chartier