Module RS-485 Modbus RTU 4 kênh đầu vào nhiệt độ DS18B20 Daisy-Chain ICP DAS M-2004 CR
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 digital temperature sensor module that provides four ports for 2- or 3 wire DS18B20 digital temperature sensor input. The DS18B20 temperature sensor has a high accuracy of ±0.5°C when measuring temperatures between -10 and + 85°C, with a total measurement range of between -55 and +125°C. Up to 20 DS18B20 sensors can be connected to each port on the M-2004 module in a daisy-chain arrangement with a maximum wiring distance of 100 meters. The M-2004 module is fully RoHS compliant, and features 4 kV ESD protection as well as 3000 VDC intra-module isolation.
Applications
- Temperature Measurement
- Environment Monitoring
- Tunnel Monitoring
- Building Monitoring
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 to +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 to 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 |
Download
Datasheet
Documents
Ordering Information
| M-2004 CR |
4-port DS18B20 Temperature Sensor Module using the DCON and Modbus Protocols (RoHS) |
