Installation Instructions
RTD Input Module12
Publication 1771Ć5.63 - November 1998
Agency Certification
(when product or packaging is marked)
• CSA certified
• CSA Class I, Division 2, Groups A, B, C, D certified
• UL listed
• CE marked for all applicable directives
User Manual Publication 1771Ć6.5.129
Major differences between series of the 1771-IR RTD Input module
are shown below.
Use of Data Table 8 in; 8 out; 8 read words, 14 write words 8 in; 8 out; 9 read words, 15 write words
Resistance Range 18.4 to 400.00 ohms 1.00 to 600.00 ohms
Common Mode Impedance <50 megohms shunted by <4700pF Greater than 10 megohms
Input Overvoltage Protection 40V rms continuous 120V rms continuous
Scan Time 50ms for 6 channels 50ms for 6 channels
Real Time Sampling None 50ms to 3.1s
AutoĆCalibration None Yes - Uses Block Transfer Write word 15
Open RTD Response Time None Open excitation (terminal A) to overrange: <0.5sec
Open common (terminal C) to underrange: <0.5sec
Open sense (terminal B): drift high
Power Dissipation 5.0W maximum 4.75W maximum
Thermal Dissipation 17.0 BTU/hr 16.2 BTU/hr
Agency Certification
(when product or packaging is marked)
• CSA certified
• CSA Class I, Division 2, Groups A, B, C,
D certified
• UL listed
• CSA certified
• CSA Class I, Division 2, Groups A, B, C, D
certified
• UL listed
• CE marked for all applicable directives
AllenĆBradley, a Rockwell Automation Business, has been helping its customers improve
productivity and quality for more than 90 years. We design, manufacture and support a broad
range of automation products worldwide. They include logic processors, power and motion
control devices, operator interfaces, sensors and a variety of software. Rockwell is one of the
world's leading technology companies.
Worldwide representation.
Argentina•Australia•Austria •Bahrain •Belgium•Brazil•Bulgaria •Canada •Chile •China, PRC •Colombia •Costa Rica •Croatia •Cyprus •Czech Republic •Denmark •
Ecuador •Egypt •El Salvador • Finland •France •Germany •Greece •Guatemala •Honduras •Hong Kong •Hungary •Iceland •India •Indonesia • Ireland •Israel • Italy •
Jamaica •Japan •Jordan •Korea•Kuwait •Lebanon•Malaysia •Mexico •Netherlands • New Zealand •Norway •Pakistan•Peru •Philippines •Poland •Portugal •Puerto
Rico •Qatar •Romania •Russia-CIS •Saudi Arabia•Singapore•Slovakia •Slovenia •SouthAfrica, Republic•Spain •Sweden •Switzerland •Taiwan•Thailand •Turkey•
United Arab Emirates • United Kingdom • United States • Uruguay • Venezuela • Yugoslavia
AllenĆBradley Headquarters, 1201 South Second Street, Milwaukee, WI 53204 USA, Tel: (1) 414 382Ć2000 Fax: (1) 414 382Ć4444
Publication 1771Ć5.63 - November 1998 PN 955132-08
Copyright 1998 Rockwell Automation Printed in USA