Rs485 addresses for KC868-A6 relays

[Yuriy]

Addition
 
KC868-A6 don’t get response by different requests (address scan, slave scan, write single coil, etc) - Timeout error, by Modbus Poll software

Am I right, that

Code:

uart:
  - id: rs485
    tx_pin: GPIO27
    rx_pin: GPIO14
    baud_rate: 9600
    stop_bits: 1
    parity: NONE

modbus:
  id: modbus1
  uart_id: rs485

modbus_controller:
- id: modbus_device
  address: 0x1
  modbus_id: modbus1
  setup_priority: -10

in ESPhome firmware enough to enable modbus for KC868-A6 and it must give back response for example for request 01 05 00 00 FF 00 8C 3A by Modbus Poll?