Edt calibration command and command data summary – Rockwell Automation 1794-IRT8XT FLEX I/O Thermocouple/RTD /Millivolt Input Module User Manual User Manual
Page 56
Publication 1794-6.5.12 - September 2011
44
Calibrate Your Module
EDT Calibration Command and Command Data Summary
Config Word 3
EDT Command
bits 8…15
Meaning
Config Word 3
bits 4…7
Config Word 3
bits 0…3
Meaning
Dec. (Hex)
Channel No.
Command data
4 (4)
General calibration
by channel
0…7
1
Channel internal current source
and current sense resistor, with
4-wire external 383
Ω
inputs
0…7
2
Channel internal current source
and current sense resistor with
4-wire external 100
Ω
inputs
0…7
3
Loop channel compensation for
2-wire RTD
0…7
4
CJC calibration
5 (5)
Offset calibration
by channel
0…7
0
gain= 1, input = -320 mV
0…7
1
gain = 2, input = 0.0 mV
0…7
2
gain = 4, input = -50 mV
0…7
3
gain = 8, input = -10.0 mV
0…7
4
gain = 16, input = -9 mV
0…7
5
gain = 32, input = 1.0 mV
6 (6)
Gain calibration by
channel
0
gain = 1, input = 320 mV
1
gain = 2, input = 320 mV
2
gain = 4, input = 110 mV
3
gain = 8, input = 70 mV
4
gain = 16, input = 29 mV
5
gain = 32, input = 19 mV
36 (24)
Calibration all
channels
General calibration
all channels
0
1
Channel internal current source
and current sense resistor, with
4-wire external 383
Ω
inputs
0
2
Channel internal current source
and current sense resistor with
4-wire external 100
Ω
inputs
0
3
Loop channel compensation for
2-wire RTD
0
4
CJC calibration
Offset calibration
all channels
1
0
gain = 1, input = -320 mV