The following documentation is for the DIN-RYx-N devices CFLink protocol messages.

The TRLYSET (Send) command is used to send a command to the relay channels.

> [F2]<ID>[F3]TRLYSET[F4]<PORT>:<STATE>[F5][F5]

• <PORT> = The relay channel (port) to be controlled. Relay channels would be from P01-P08.
• <STATE> = The command to set the status of relay. 0 would set the relay to open, 1 would set the relay to close, T would set the relay to toggle.

// The reply comes from only the port where the change event happens
< [F2]<ID>[F3]RRLYCHA[F4]<PORT>:<STATE>[F5][F5]

To minimize the data traffic on the communication bus, the RRLYCHA will only reflect the affected ports only. It will also be sent as unsolicited messages when buttons on the display panel are set.