Communication between Op73micro and S7-200

Help me, please. I’m using OP73 micro. I transfered data from computer to OP73micro.. I use cable RS485 series ES7 972-E118536. In Connection, I choose MPI, 19200 baud rate. But I can’t make communication between HMI and PLC S7-200, CPU 226. Example, Realweight in PLC type Dint, address VD 4000. In WinCC Flexible 2008, Realweight modeutput, tag Realweight, type: DInt, address VD 4000. Then on OP73micro, Realweight display #####, I can’t understand

Hi! Im trying to do the same! I transfered data from wincc to HMI but I can't get any response. I dont know what is wrong. Is the configuration of my cable? ( I made it point to point rs485 by conecting 3 and 8 pin) Any help is really really welcome