I-87004W-G CR ICP DAS Analog IO Modules

• 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
• RoHS Compliant
• Wide Operating Temperature Range: -25 to +75°C

The I-87004W 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 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.

Communication

Interface:  RS-485
Format:  N81, N82, E81, O81
Baud Rate:  1200 to 115200 bps
Protocol:  DCON
Dual Watchdog:  Yes, Module (1.6 Seconds), Communication (Programmable)

LED Indicators/Display

System LED Indicator:  Yes, 1 as Power/Communication Indicator
I/O LED Indicator:  -

Isolation

Intra-module Isolation, Field-to-Logic:  3000 VDC

EMS Protection

ESD (IEC 61000-4-2):  ±4 kV Contact for each Terminal
                      ±8 kV Air for Random Point

Power

Power Consumption:  0.5 W Max.

Mechanical

Dimensions (L × W × H):  115 mm x 30 mm x 102 mm

Environment

Operating Temperature:  -25 to +75°C
Storage Temperature:  -30 to +80°C
Humidity:  10 to 90% RH, Non-condensing