Module RS-485 Modbus RTU 4 kênh đầu vào nhiệt độ DS18B20 với Daisy-Chain ICP DAS M-7004-G CR
The M-7004 is a digital temperature sensor module that provides four ports for 2- or 3 wire DS8B20 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-7004 module in a daisy-chain arrangement with a maximum wiring distance of 100 meters. The M-7004 module is fully RoHS compliant, and features 4 kV ESD protection as well as 3000 VDC intra-module isolation.
• Temperature Measurement
• Environment Monitoring
• Tunnel Monitoring
• Building Monitoring
| CPU Module |
| Watchdog Timer |
Yes, Module (1.6 Seconds), Communication (Programmable) |
| Isolation |
| Intra-module Isolation |
3000 VDC |
| EMS Protection |
| EFT (IEC 61000-4-4) |
±4 kV for Power |
| 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 liner |
| 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 (See Note 1) |
| Sampling Rate |
1 Hz |
| Individual Channel Configuration |
– |
| COM Ports |
| Ports |
1 x RS-485 |
| Baud Rate |
1200 to 115200 bps |
| Data Format |
N81, N82, E81, O81 |
| Protocol |
DCON Modbus/RTU |
| Power |
| Reverse Polarity Protection |
Yes |
| Input Range |
+10 ~ +48 VDC |
| Consumption |
0.5 W |
| Mechanical |
| Dimensions (mm) |
123 x 72 x 35 (W x L x H) |
| Installation |
DIN-Rail |
| Environment |
| Operating Temperature |
-25 ~ +75 °C |
| Storage Temperature |
-30 ~ +80 °C |
| Humidity |
10 ~ 90% RH, Non-condensing |
Specification Memo
Note 1: ±0.5°C Accuracy from -10°C to +85°C
