Waveshare Analog Input 8CH (B) · Modbus RTU / TCP
Monitor analógových vstupov — Interaktívne demo
Osem priemyselných senzorov zapojených do modulu Waveshare Modbus RTU Analog Input 8CH (B) — živé simulované hodnoty, rozsahové režimy kanálov a prepočet na inžinierske jednotky. Prepínaj medzi priamym RS485 (RTU) a gateway RS485-to-ETH (B) (Modbus TCP ).
MODBUS RTU
MODBUS TCP
PC ↔ USB-to-RS485 adapter ↔ module · 9600 8N1 · slave 1
Waveshare
V3
Modbus RTU
Analog Input 8CH (B)
MODE RANGE
0 0~10V
1 2~10V
2 0~20mA
3 4~20mA
RXD
TXD
STATUS
V/I
24 V DC
24V
+
−
USB/RS485
USB-to-RS485
USB
Waveshare
RS485-TO-ETH (B)
PWR
ACT
RJ45
Modbus TCP → RTU gateway
ETH
8CH AI MONITOR
PC — monitor app
Legend:
sensor signal (mA / V)
RS485 A+
RS485 B−
USB / Ethernet
status LED
hover a sensor or a card to trace its wiring
TX → 01 04 00 00 00 08 F1 CC RX ← —
Channel range modes (register 0x1000 + ch)
Mode Range Raw output
0 0–10 V 0–10000 mV 1 2–10 V 2000–10000 mV 2 0–20 mA 0–20000 µA 3 4–20 mA 4000–20000 µA
Modbus protocol
Action Code Registers
Read 8 channels FC04 0x0000–0x0007 Read / set modes FC03/06/10 0x1000–0x1007 UART / address FC03/06 0x2000 / 0x4000