Signal Conditioners, Temperature Transmitters and Controllers
Modbus RTU, Modbus TCP, Canbus, PLC's and Hmi's.
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  • RTD to RS485 Modbus, Resistance to RS485 Modbus converter DAT3019.
  • DAT3019 RS485 FEATURES

    • UL, CSA, CE.
    • Modbus RTU Slave.
    • RS485 Communication.
    • 8 Analog Inputs RTD, Resistance.
    • Isolation.

RTD to RS485 Modbus, Resistance to RS485 Modbus converter DAT3019

General Description

The RTD and Resistance to RS485 Modbus converter DAT3019 RS485 Modbus is an 8 Channel RTD and Resistance input RS485 Modbus converter. The DAT3019 RS485 Modbus converts the RTD and Resistance analog signal to a 16 bit digital format. The data is transmitted by the RS485 Modbus protocol on RS-485. There are several options on the RTD and Resistance input on the DAT3019 RS485 Modbus such as is Pt100, Pt1000, Ni100, Ni1000 0-500Ohms and 2000 Ohms. The DAT3019 RS485 Modbus is also available in the RS232 ASCII format.

RTD, Resistance.
Power Supply Voltage 10-30Vdc
Reverse polarity protection 60Vdc
Between 30 and 100 mA
PC Programmable.
Between Input/Comms/Power Supply 2000Vac.
For Industrial environments
Immunity EN 61000-6-2
Emission EN 6100-6-4
Material self-extinguishing
Dimensions W x H x T
4" x 4 3/4" x 3/4"
100 x 120x x 22.5 mm
Weight 3 oz 90 g
Operating Temperature -4°F +140°F -20°C +60°C
Storage Temperature -40°F +185°F-40°C +85°C
Humidity (non condensing) 0-90%



RTD 8 Channels Pt100, Pt1000, Ni100, Ni1000
Resistance 0-500 Ohm, 0-2000 Ohm.
RS485: Modbus RTU Slave.
RS232: Modbus Slave.
Power Supply: 10 - 30 Vdc. Reverse polarity protection 60 Vdc.
Current Consumption: 30 mA.
Temperature rating: Operative Temperature - 4°F +140°F - 20°C +60°C Storage Temperature - 40°F +185°F - 40°C +85°C.
Humidity: (not condensing) 0-90%.
Housing: Material self-extinguishing.
Dimensions: W x L x H 3 3/4X 3 1/2 X 1 7/8 inch, 90 x 74 x 48mm.
Weight: 7 oz 200 g.
EMC. For industrial environments.
Immunity: EN 61000-6-2.
Emission: EN 61000-6-4.
Isolation: Between Modbus Master, Slave/Power supply 1500Vac, 50Hz, 1 Minute.
Configuration: PC Configurable.


RTD and Resistance Input 0 Sensor on 1 and 2
RTD and Resistance Input 1 Sensor on 3 and 4
RTD and Resistance Input 2 Sensor on 5 and 6
RTD and Resistance Input 3 Sensor on 7 and 8
RTD and Resistance Input 4 Sensor on 9 and 10
RTD and Resistance Input 5 Sensor on 11 and 12
RTD and Resistance Input 6 Sensor on 13 and 14
RTD and Resistance Input 7 Sensor on 15 and 16
Power Supply (18-30Vdc). Positive J Negative I.
RS 485 Slave Positive (D+)B Negative (D-) A GND C
  E RX
  F TX
Init Pin D Init Gnd C

RTD to RS485 Modbus, Resistance to RS485 Modbus converter DAT3019.


  • Convert 8 channel Resistance to Modbus RS485.
  • Convert 8 channel RTD to Modbus RS485.
  • Convert 8 channel Pt100 to Modbus RS485.
Back to General Description