I-87004W-G
4-port DS18B20 Temperature Sensor Input Module
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
• 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
Introduction
The I-87004W 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 I-87004W module in a daisy-chain arrangement with a maximum wiring distance of 100 meters. The I-87004W 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
• Environment Monitoring
• Tunnel Monitoring
• Building Monitoring
Ordering Information
| PRODUCT SERIES | DESCRIPTION | QNT. | INQUIRY |
|---|---|---|---|
This combination include other products.
Similar Products
| CPU Module | |
|---|---|
| Watchdog Timer | Yes, Module (1.6 Seconds), Communication (Programmable) |
| Isolation | |
|---|---|
| Intra-module Isolation | 3000 VDC |
| EMS Protection | |
|---|---|
| ESD (IEC 61000-4-2) | ± 4 kV Contact for Each Terminal ±8 kV Air for Random Point |
| 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 | DCON |
| Power | |
|---|---|
| Consumption | 0.5 W Max. |
| Mechanical | |
|---|---|
| Dimensions (mm) | 30 x 102 x 115 (W x L x H) |
| 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 only applies for measurements between -10°C and +85°C
