M-2004
4-port Digital Temperature Sensor Module with Daisy-Chain Wiring
Features
- 4-Port DS18B20 Sensor Input Module
- 2/3-wire DS18B20 Wire Connection
- Max. 20 Sensors per Port
- Up to 100 meters per port with Daisy-Chain Wiring
- Measures Temperatures from -55 to +125°C
- ±0.5°C Accuracy from -10 to +85°C
Introduction
The M-2004 is a 4-port digital temperature sensor module supporting 2-wire or 3-wire DS18B20 digital temperature sensors, with a measurement range of -55 to +125 ℃. Within the -10 to +85 ℃ range, the DS18B20 sensor delivers high accuracy of ±0.5 ℃.
With Daisy-Chain wiring, each port supports cable runs of up to 100 meters and can connect up to 20 DS18B20 sensors. Fully RoHS compliant, the M-2004 also features EMS (EFT/ESD/Surge) protection and 3000 VDC I/O isolation, ensuring strong noise immunity and reliable operation in demanding industrial environments.
With Daisy-Chain wiring, each port supports cable runs of up to 100 meters and can connect up to 20 DS18B20 sensors. Fully RoHS compliant, the M-2004 also features EMS (EFT/ESD/Surge) protection and 3000 VDC I/O isolation, ensuring strong noise immunity and reliable operation in demanding industrial environments.
Applications
Ordering Information
| PRODUCT SERIES | DESCRIPTION | QNT. | INQUIRY |
|---|---|---|---|
This combination include other products.
Similar Products
| 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 ~ +125 °C |
| Analog Input | |
|---|---|
| Ports | 4 |
| Sensor Type | DS18B20 |
| Sensors per Ports | 20 |
| Sensor Wiring Cables Length | Max. 100 m per Port |
| Resolution | 12-bit |
| Accuracy | ±0.5 °C (See 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) (O, 8, 1) |
| Protocol | Modbus RTU, DCON |
| Bias Resistor | 1k Ω (DIP switch selectable) |
| Power | |
|---|---|
| Reverse Polarity Protection | Yes |
| Input Range | +10 ~ +48 VDC |
| Consumption | 0.5 W |
| Mechanical | |
|---|---|
| Dimensions (mm) | 33 x 117 x 88 (W x L x H) |
| Installation | DIN-Rail mounting |
| Environment | |
|---|---|
| Operating Temperature | -25 ~ +75 °C |
| Storage Temperature | -30 ~ +80 °C |
| Humidity | 10 ~ 95% RH, Non-condensing |
Specification Memo
Note 1: ±0.5°C Accuracy from -10°C to +85°C
