EYC DPT02-C Digital Universal Input Signal Converter is a DIN-rail signal converter designed to scale and isolate field signals for PLC, SCADA and instrumentation systems. It accepts multiple input types (mA, V, RTD, thermocouple and resistance) and converts them to standard outputs. This -C version provides one analogue output plus RS-485 Modbus RTU communications.
🔧 Technical Highlights:
- Universal inputs: DC voltage (0-10 V, 2-10 V, 0-1 V, 0-5 V, 0.2-1 V, 1-5 V); DC current (0-20 mA, 4-20 mA); RTD (Pt10, Pt20, Pt50, Pt100, Pt200, Pt250, Pt300, Pt400, Pt500, Pt1000; 2/3/4-wire); thermocouple (B, E, J, K, N, R, S, T, U; internal cold junction compensation); linear resistance (0-10 kΩ); potentiometer (10-100 kΩ).
- Analogue output ranges: current (0-20 mA, 4-20 mA, 20-0 mA, 20-4 mA) and voltage (0-1 V, 0.2-1 V, 0-5 V, 1-5 V, 0-10 V, 2-10 V, 1-0 V, 1-0.2 V, 5-0 V, 5-1 V, 10-0 V, 10-2 V).
- Outputs: 1 analogue output (A.OUT1) on terminals 11 (-) and 12 (+), plus RS-485 Modbus RTU on terminals 13 (D-) and 14 (D+).
- RS-485 communication: Modbus RTU (master or slave), baud rates 9600 to 115200 bps.
- Display & setup: 3-digit LED display (-199 to +999), 0-2 decimal places, keypad programming; sampling 4 cycles/sec; response time adjustment 0.5-60 sec.
- Analogue output performance: 16-bit resolution; load resistance for current output < 500 Ω; voltage output load ≥ 10 kΩ; signal error detection supported.
- Power & auxiliary supply: 85-253 V AC supply; auxiliary output 16-25 V DC, 23 mA for 2-wire/3-wire transmitters.
- Isolation: galvanic isolation between power supply, analogue input, analogue output and RS-485.
- Power connections: 85-253 V AC on terminals 31 and 34.
- Input & excitation terminals (1-4): 1 = +TC / Pt(b) (RTD 3/4-wire); 2 = -mA / -V / -TC / Pt(B) (RTD 2/3/4-wire) / Potm.1 / Lin.R; 3 = +mA / Pt(A) (RTD 2/3/4-wire) / Potm.3 / Lin.R; 4 = +exc. / +V / Pt(a) (RTD 4-wire) / Potm.2. Typical wiring: mA input on 2(-) & 3(+); V input on 2(-) & 4(+); thermocouple on 1(+) & 2(-); potentiometer on 2/4/3; auxiliary transmitter supply on 4(+V) & 2(-V).
- Environment & build: operating -10 to +60 °C, 0-95% RH (non-cond.); IP20; ABS UL94V-0; 99.5 x 25.5 x 104.2 mm; approx. 158 g.
- Calibration: 20-point linear calibration function.
✅ Benefits:
- Converts many sensor and transmitter signals to standard analogue outputs to simplify panel design
- Built-in galvanic isolation helps prevent ground loops and improves measurement stability
- Local LED display and keypad make scaling and diagnostics quicker during commissioning
- DIN-rail form factor saves space in control panels
- 20-point linear calibration supports fine tuning for demanding processes
🚀 Applications:
- Factory automation signal conditioning
- Energy, water circulation and process skids
- Oil & gas and marine instrumentation panels
- Metal, cement, pulp & paper and chemical plants
- Food & beverage and pharmaceutical process control
Designed for stable, isolated signal conversion, DPT02 helps deliver reliable measurements and control signals in industrial automation environments.
FAQs
- Q: How do I wire RS-485 on DPT02-C?
A: Connect RS-485 D- to terminal 13 and RS-485 D+ to terminal 14. Configure Modbus RTU parameters (master/slave and baud rate) from the keypad.
- Q: What is the analogue output wiring on DPT02-C?
A: The analogue output A.OUT1 is wired on terminals 11 (-A.OUT1) and 12 (+A.OUT1) and can be configured for current or voltage ranges.