The block reports system failure

– Power supply: +5VDC ±5%;
– Communication standards: RS-485 Modbus RTU;
– Speed: 9600bps;
– Output: relay contact;
– Operating mode: ON/OFF, Delay_ON, Delay_OFF;
– LED indicator;
– LED power indicator;
– Size, mm: 66 x 33 x 17
(± 5%).