Communication between ABB RTU530 and Siemens 7SJ62 using IEC 60870-5-103 protocol

Hello everyone,

I'm need to connect ABB RTU530 and 9 Siemens 7SJ62 relays using IEC 60870-5-103 protocol. Relays are connected in daisy chain with RS485 ports.
The issue is parity parameter. In relays parity is set to NONE while on RTU side parity is set on EVEN. I tried to change parity on RTU side but there is no option to change parity in RTU configuration after I assign IEC 60870-5-103 protocol to serial port, however if I assign MODBUS RTU protocol to same serial port - option to change parity is there. I tried researching and reading manuals but I couldn't find anything. Did someone experience similar issue and is there any advice you could give me?

I'm new here so I'm sorry if this is the wrong thread for this type of question.

Thank you!