Hi, I was hoping I could get help.

I have a Siemens logo 8.3 and I would like to integrate a Phoenix

IL ETH BK DI8 DO4 2TX-PAC modbus coupler into the project.

The main problem I have is that the modbus coupler only supports

FC3,4,6,16,23 and what would normally be fc1/2 can only be accessed

Via holding registry.

When I use the network analog input I can read the integer representation

Of the 16bit word, but how do I convert that into some thing I can

Use ie which inputs and outputs are on.

I am able to write to the phoenix digital outputs using a maths instruction FB

But I just need to figure out how to reverse this process.

I have attached a working example of the logo having its inputs switched,

converting it to a analog value, sending it through a maths function and

on to the Network analog output. Each logo input will switch the corresponding

phoenix output on/off, ie logo input 1 will switch phoenix output 1 on/off

Any help would be much appreciated.

Thanks

Worked perfectly!!! Thanks ixo65.

Anyone wishing to reproduce results on base module IL ETH BK DI8 DO4 2TX-PAC

With no other i/o attached.

Phoenix inputs                 8000 = 8001 on the Logo

Phoenix outputs               8001 = 8002 on the logo.

Once again thanks.