M-7004-G 4-Port DS18B20 Temperature Sensor Module, DCON/Modbus RTU
Four-port DS18B20 digital temperature input module with daisy-chain wiring, supporting up to 20 sensors per port over RS-485 using Modbus RTU or DCON. Gray cover, RoHS.
- Four independent ports for DS18B20 digital temperature sensors
- 2- or 3-wire sensor connection
- Up to 20 sensors per port in daisy-chain arrangement
- Up to 100 metres of sensor wiring per port
- Measurement range of -55 ~ +125 °C with ±0.5 °C accuracy between -10 and +85 °C
- Single RS-485 port with Modbus RTU and DCON support
€157.00 per piece
| 1–9 pcs | €157.00 | |
|---|---|---|
| 10–30 pcs | €152.00 | −3 % |
| 31+ pcs | €149.00 | −5 % |
Product information "M-7004-G 4-Port DS18B20 Temperature Sensor Module, DCON/Modbus RTU"
The M-7004-G is a four-port temperature input module for engineers who need to collect readings from DS18B20 digital sensors across a distributed installation. Each port accepts 2- or 3-wire sensor connections, and up to 20 sensors can be daisy-chained on a single port over a wiring run of up to 100 metres.
Measurement and communication: Each DS18B20 sensor offers a measurement range of -55 ~ +125 °C and an accuracy of ±0.5 °C between -10 and +85 °C, with 12-bit resolution and a 1 Hz sampling rate. Readings are returned to the host over a single RS-485 port that supports Modbus RTU and DCON, with a baud rate from 1200 to 115200 bps.
Build and installation: The module provides 3000 VDC intra-module isolation and 4 kV ESD protection, and is designed for DIN-rail mounting on a +10 ~ +48 VDC supply with reverse polarity protection. The gray cover variant is the one to specify for this ordering code.
Applications
- Temperature Measurement
- Environment Monitoring
- Tunnel Monitoring
- Building Monitoring
| Product type: | Temperature sensor input module |
|---|---|
| Interface: | RS-485 |
| Protocol: | DCON, Modbus RTU |
| Analog inputs: | 4 |
| Ports: | 4 |
| Isolation: | 3000 VDC |
| Power input: | +10 ~ +48 VDC |
| Operating temperature: | -25 ~ +75 °C |
| Mounting: | DIN-rail |
Specifications
| CPU Module | |
|---|---|
| Watchdog Timer | Module, Communication (Programmable) |
| Isolation | |
| Intra-module Isolation | 3000 VDC |
| EMS Protection | |
| EFT (IEC 61000-4-4) | ±4 kV for Power Line |
| ESD (IEC 61000-4-2) | ±4 kV Contact for Each Terminal ±8 kV Air for Random Point |
| Surge (IEC 61000-4-5) | ±2 kV for Power Line |
| LED Indicators | |
| Status | 1 x Power and Communication |
| Temperature Measurement | |
| Range | -55 °C ~ +125 °C |
| Analog Input | |
| Channels | 4 |
| Sensor Type | DS18B20 |
| Sensors per Ports | 20 |
| Sensor Wiring Cables Length | Max. 100 m per Port |
| Resolution | 12-bit |
| Accuracy | ±0.5 °C (*Note 1) |
| Sampling Rate | 1 Hz |
| COM Ports | |
| Ports | 1 x RS-485 |
| Baud Rate | 1200 ~ 115200 bps |
| Data Format | (N, 8, 1), (N, 8, 2), (E, 8, 1), or (O, 8, 1) |
| Protocol | Modbus RTU, DCON |
| Power | |
| Reverse Polarity Protection | Yes |
| Input Range | +10 ~ +48 VDC |
| Consumption | 0.5 W |
| Mechanical | |
| Dimensions (mm) | 72 x 123 x 35 (W x L x H) |
| Installation | DIN-Rail Mounting |
| Environment | |
| Operating Temperature | -25 ~ +75 °C |
| Storage Temperature | -30 ~ +80 °C |
| Humidity | 10 ~ 90% RH, Non-condensing |
Specifications as published by the manufacturer. Subject to change.
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