Dear experts

I want to make analog interface ( Level , temperature and presure Value )with two independence project by  pn/pn coupler and I know  this device communicate digital bits peer to peer   . just I wanna know how can I  send and recive analog value by that .  if somebody make Example I will be pleasure .

Hello,

as you've defined 2 BYTE I/O area, this is full memory for your right INT/WORD value. Look to your reserved address memory, first device has address 212...213 second 5...6. So in this case you can read/write your analog values like

Write to first device analog value from second device:

PQW5:=16#45;

Read in first device analog from second device:

#my_value:=PIW212;

So in #my_value you will have 16#45.

I expect your preparation right data before to put inside that Addresses as you need.

Active member

thanks for your quick help .

best regards