Module configuration word, Specifications – Rockwell Automation 1769-IT6 Compact I/O Thermocouple/mV Input Module User Manual
Page 20
20 Compact I/O Thermocouple/mV Input Module
Publication 1769-IN026C-EN-P - February 2010
Module Configuration Word
Word 6 of the configuration data file contains the Enable/Disable Cyclic Calibration bit.
Specifications
To select
Make these bit settings
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Enable/Disable
Cyclic
Calibration
Enabled
(1)
(1)
When enabled, an autocalibration cycle is performed on all enabled channels every 5 min.
0
Disabled
1
Technical Specifications - 1769-IT6
Attribute
1769-IT6
Number of inputs
6 input channels plus 2 CJC sensors
Bus current draw, max
100 mA at 5V DC
40 mA at 24V DC
Heat dissipation
1.5 Total Watts
(The Watts per point, plus the min Watts, with all points energized.)
Converter type
Delta Sigma
Input filtering
Programmable notch filter with multiple frequencies
Response speed per channel
Input filter and configuration dependent
(refer to the Compact I/O Thermocouple/mV Input Module User Manual,
publication
)
Rated working voltage
(1)
30V AC/30V DC
Common mode voltage range
(2)
±10V DC max per channel
Common mode rejection
115 dB (min) at 50 Hz (with 10 Hz or 50 Hz filter)
115 dB (min) at 60 Hz (with 10 Hz or 60 Hz filter)
Normal mode rejection ratio
85 dB (min) at 50 Hz (with 10 Hz or 50 Hz filter)
85 dB (min) at 60 Hz (with 10 Hz or 60 Hz filter)
Cable impedance, max
25
Ω
Input impedance
>10M
Ω
Open-circuit detection time
7 ms to 2.1 s
(4)
Calibration
The module performs autocalibration upon powerup and whenever a
channel is enabled; you can also program the module to calibrate every
5 min. by using the Enable/Disable Cyclic Calibration bit
Non-linearity (in percent full scale)
±0.03%
Repeatability
(3)
±0.03%
Overload at input terminals, max
±35V DC continuous
(5)