Rockwell Automation 1738-IT2IM12 ArmorPoint RTD and Thermocouple Modules, Series A - Manual (Page 13)

ArmorPOINT RTD and Thermocouple Input Modules 13
Publication 1738-IN005B-EN-E - January 2013
Input update rate (per module) 1738-IR2M12
40 ms @ Notch = 50 Hz
33 ms @ Notch = 60 Hz (default)
20 ms @ Notch = 100 Hz
17 ms @ Notch = 120 Hz
10 ms @ Notch = 200 Hz
8 ms @ Notch = 240 Hz
7 ms @ Notch = 300 Hz
5 ms @ Notch = 400 Hz
4 ms @ Notch = 480 Hz
1738-IT2IM12
20 ms @ Notch = 50 Hz
17 ms @ Notch = 60 Hz (default)
10 ms @ Notch = 100 Hz
8 ms @ Notch = 120 Hz
5 ms @ Notch = 200 Hz
4 ms @ Notch = 240 Hz
3 ms @ Notch = 300 Hz
3 ms @ Notch = 400 Hz
2 ms @ Notch = 480 Hz
Step response (per channel) 60 ms @ Notch = 50 Hz
50 ms @ Notch = 60 Hz
30 ms @ Notch = 100 Hz
25 ms @ Notch = 120 Hz
15 ms @ Notch = 200 Hz
13 ms @ Notch = 240 Hz
10 ms @ Notch = 300 Hz
8 ms @ Notch = 400 Hz
6 ms @ Notch = 480 Hz
Input resistance 1738-IT2IM12 only – 1 M Ω
Input impedance 1738-IT2IM12 only – 100 K Ω
Conversion type Delta Sigma
Common mode rejection ratio 120 dB
Normal mode rejection ratio 100 dB
-3 db
Notch filter
13.1 Hz @ Notch = 50 Hz
15.7 Hz @ Notch = 60 Hz
26.2 Hz @ Notch = 100 Hz
31.4 Hz @ Notch = 120 Hz
52.4 Hz @ Notch = 200 Hz
62.9 Hz @ Notch = 240 Hz
78.6 Hz @ Notch = 300 Hz
104.8 Hz @ Notch = 400 Hz
125.7 Hz @ Notch = 380 Hz
Data format Signed integer
Maximum overload 1738-IR2M12 – No input protection
1738-IT2IM12 – Input not overvoltage protected
(1) Includes offset, gain, non-linearity and repeatability error terms
ArmorPOINT RTD and Thermocouple Input Modules –
1738-IR2M12, 1738-IT2IM12
Attribute Value