M-7004-G CR, 4-Port DS18B20 Digital Temperature Sensor Module with Daisy-Chain Wiring using DCON and Modbus Protocols (Gray Cover)
M-7004-G CR
4-Port DS18B20 Digital Temperature Sensor Module with Daisy-Chain Wiring using DCON and Modbus Protocols (Gray Cover)
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Features
- 4-Port DS18B20 Sensor Input Module
- 2/3-wire DS18B20 Wire Connection
- Max 20 Sensors per Port
- Max. Distance of 100 m per Port when using Daisy-Chain Wiring
- Measures Temperatures from -55 to +125°C
- ±0.5°C Accuracy from -10 to +85°C
- 4 kV ESD Protection
- 3000 VDC Intra-module Isolation, Field to Logic
Introduction
The M-7004 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-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.
Applications
-
Temperature Measurement
- Environment Monitoring
- Tunnel Monitoring
- Building Monitoring
Specifications
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