WAVESHARE · PUBLIC DEVICE MAP

Modbus RTU Relay 16CH register map

Core register map transcribed from the official Modbus RTU Relay 16CH protocol documentation.

MAP OVERVIEW

2 groups, 19 decoded points.

01Relay outputs16 tags02Device information3 tags
REGISTER MAP

Searchable source data.

Documentation addresses are derived from the zero-based PDU address in the public definition. Convert a documentation address to its PDU offset when comparing with the manual. Confirm the map against revision Development Protocol V1 and the installed device before commissioning.

Relay outputs

16 of 16
Signal / registerDoc addressPDUTypeUnitNotes
Relay 1000010–0boolean—Relay state; read with FC01 and control with FC05 or FC15.
Relay 2000021–1boolean—Relay state; read with FC01 and control with FC05 or FC15.
Relay 3000032–2boolean—Relay state; read with FC01 and control with FC05 or FC15.
Relay 4000043–3boolean—Relay state; read with FC01 and control with FC05 or FC15.
Relay 5000054–4boolean—Relay state; read with FC01 and control with FC05 or FC15.
Relay 6000065–5boolean—Relay state; read with FC01 and control with FC05 or FC15.
Relay 7000076–6boolean—Relay state; read with FC01 and control with FC05 or FC15.
Relay 8000087–7boolean—Relay state; read with FC01 and control with FC05 or FC15.
Relay 9000098–8boolean—Relay state; read with FC01 and control with FC05 or FC15.
Relay 10000109–9boolean—Relay state; read with FC01 and control with FC05 or FC15.
Relay 110001110–10boolean—Relay state; read with FC01 and control with FC05 or FC15.
Relay 120001211–11boolean—Relay state; read with FC01 and control with FC05 or FC15.
Relay 130001312–12boolean—Relay state; read with FC01 and control with FC05 or FC15.
Relay 140001413–13boolean—Relay state; read with FC01 and control with FC05 or FC15.
Relay 150001514–14boolean—Relay state; read with FC01 and control with FC05 or FC15.
Relay 160001615–15boolean—Relay state; read with FC01 and control with FC05 or FC15.

Device information

3 of 3
Signal / registerDoc addressPDUTypeUnitNotes
UART parameters481938192–8192uint16—Parity mode in the high byte and baud-rate mode in the low byte.
Device address5638516384–16384uint16—Configured Modbus device address.
Software version7276932768–32768uint16—Raw integer scaled by 0.01; 100 represents version 1.00.
SOURCE & SCOPE

Import the map, then verify the device.

The catalogue provides register metadata, not a connection profile. Serial port, Unit ID, baud rate and site-specific naming stay in your Busloom project.