Hi guys,

I have four s7 400H plc on same network (communicated with each other) and 4 HMI and One redundant Scada system. this system is running very well.

IP address are 192.168.1.11  .........................192,168.1.131

But,

now our system will connect to Honeywell DCS system through modbus TCP/IP, so the DCS guy is saying to change the ip address 10.0.1.11 ......................

this DCS will connect  with our one cp 443- module

could u pls suggest me what should i do.

is it any way to change the ip address of one cp 443 only and other plc and cps address remain old ip.

for your easy reference i have attached screen shot

please reply as soon as possible

i m very upset with this

Please please please

Hello rhmt

I´m Sorry the quality of the Screenshot is so bad that you cannot see any details...

Of course you can use another IP Subnet over the same Network connections. I´m not quite sure whats you problem??

Bye Murof

Hi Murof,

I m very thankful to you for reply,

I have attached here pdf of Netpro,

hope this is clear to view,

in network u can see there are 3 GTG and 1 Other station (DCS) are configured with my system through modbus Tcp/IP with address their addess 192.168.1.223 -------232, and 192.168.1.201 But now they are saying that they have different IP address which is 10.0.1.11---------42. for all 3 GTG and DCS system.

so my question is ' How to change the ip address of the particular CP which is connected with GTG and DCS"

Should I have to change the all address (from 192.168.1.11......... TO 10.0.1.11..........)of my all plc Modules and how to download the whole changes in plc 

I have very little bit knowledge about this s7 400H system 

please guide me .