Read and write words for calibration – Rockwell Automation 1794-IRT8XT FLEX I/O Thermocouple/RTD /Millivolt Input Module User Manual User Manual
Page 54
Publication 1794-6.5.12 - September 2011
42
Calibrate Your Module
Read and Write Words for Calibration
The following tables provide read and write words for module calibration.
7
30
31
29
32
24V DC Power
34 and 50
24V DC
Common
35 and 51
(1)
Terminals 16, 33 and 40…45 are chassis ground.
Wiring to the 1794-TB3G and 1794-TB3GS Terminal Base Units
RTD or
Thermocouple
Channel
1794-TB3G and 1794-TB3GS Terminal Base Units
(1)
High Signal
Terminal (H)
Low Signal
Terminal (L)
RTD Source
Current (+)
Signal Return
(-)
Write Words for Calibration
Decimal
15
14
13
12
11
10
09
08
07
06
05
04
03
02
01
00
Octal
17
16
15
14
13
12
11
10
07
06
05
04
03
02
01
00
Word
⇓
Write
0
Reserved
Data Format
Flt
Mode
Ch
0…3
Flt
Mode
Ch
4…7
Reference Junction
Filter Select
1
TC/RTD
Ch. 4…7
Sensor
Mode
Ch 4…7
Sensor Type Ch 4…7
TC/RTD Ch.
0…3
Sensor Mode
Ch 0…3
Sensor Type Ch 0…3
2
RTD Offset
Ch 7
RTD Offset
Ch 6
RTD Offset
Ch 5
RTD Offset
Ch 4
RTD Offset
Ch 3
RTD Offset
Ch 2
RTD Offset
Ch 1
RTD Offset
Ch 0
3
EDT command
EDT command data
Where:
Flt = Fault
TC/RTD = Thermocouple/Resistance Temperature Detector
EDT = Extended Data Transfer
Read Words for Calibration
Decimal
15
14
13
12
11
10
09
08
07
06
05
04
03
02
01
00
Octal
17
16
15
14
13
12
11
10
07
06
05
04
03
02
01
00
Word
⇓
Read
0
Channel 0 Input Data
1
Channel 1 Input Data
2
Channel 2 Input Data
3
Channel 3 Input Data
4
Channel 4 Input Data