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Home › Products › IO Cards › WT30i
IO Cards
Analog Modbus IO Card — 2i Module
Compact Analog Modbus IO card for reliable voltage, current, digital and pulse input monitoring — a generic RS485 Modbus RTU slave that works with any Modbus master.
4× ANALOG IN|2× 4–20 mA|2× PULSE|RS485 MODBUS RTU
4
Analog Inputs(0–10 V · float)
2
Current Inputs(4–20 mA)
2
Digital Inputs(0–24 V)
32-bit
Pulse Counters(0 – 999999)
RS485 · Modbus RTU
Slave Interface
12 – 24V DC
Wide Voltage Input
Generic Modbus Analog IO card — works with any Modbus RTU master.
Mechanical drawings & pin details are included in the datasheet.
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Industrial Grade
OEM Ready
Long Term Support
Specifications
| I/O Specification | |
|---|---|
| Digital Input | 2 × 0–24 V |
| Analog Input (0–10 V) | 4 channels (float) |
| Current Input (4–20 mA) | 2 channels (float) |
| Pulse Counter | 2 × 32-bit (optional) |
| Serial | |
|---|---|
| Interface | RS485 — Modbus RTU Slave |
| Baud Rates | 2400 – 115200 bps (reg 40102) |
| Data Bits | 8 |
| Parity | None / Even / Odd (reg 40104) |
| Stop Bits | 1 / 2 (reg 40105) |
General Specifications
| Power Supply | 12–24 V DC |
| Interface | RS485 · Modbus RTU (Slave) |
| Status LEDs | RX · TX · CON · PWR |
| Field Wiring | Screw terminals |
| Configuration | Via holding registers — any Modbus master |
Configuration Registers
| Device ID | 40101 · 1 – 247 (R/W) |
| Baud Rate | 40102 · 0–7 = 2400 – 115200 |
| Parity | 40104 · None / Even / Odd |
| Stop Bits | 40105 · 1 or 2 |
| Scaling & Modes | Configurable via holding registers |
Interfaces
Power Supply
12–24 V DC
Analog Inputs
4× 0–10 V (registers 40012–40018)
Current Inputs
2× 4–20 mA (registers 40020 / 40022)
Digital Inputs
2× 0–24 V
Pulse Counters
2× 32-bit, configurable input mode
RS485 Port
Modbus RTU slave · D+ / D–
LED Indicators
RX · TX · CON · PWR
Terminals
Screw terminals — 16-pin field wiring
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OEM / White-Label Ready
Your brand. Our technology.
Quality Assured
Rigorous testing & certified quality.
Designed & Built in India
Engineering excellence with global standards.
