
Publication 1794-UM064B-EN-P - May 2014
32 Communicate With Your Module
1794-IT8 – Thermocouple Input Module Image Table Mapping
1794-IT8 Read and Write Words
Dec. Bit 151413121110 09 08 07 06 050403 02 01 00 Size
Octal Bit171615141312 11 10 07 06 050403 02 01 00 Read/Write
Words
Reserved Read Word 0
Channel 0 Input Data Read Word 1
Channel 1 Input Data Read Word 2
Channel 2 Input Data Read Word 3
Channel 3 Input Data Read Word 4
Channel 4 Input Data Read Word 5
Channel 5 Input Data Read Word 6
Channel 6 Input Data Read Word 7
Channel 7 Input Data Read Word 8
Overrange Bits Underrange Bits Read Word 9
00000Bad
Cal
Cal
Done
Cal out
of
Range
0 Critical Error Pwr
Up
Bad TC
Type
Selected
CJC
Over
CJC
Under
Read Word 10
8-bit Calibration Mask Cal
Clk
Gain
Offset
Cal
Notch
Frequency
FFE Module
Data Type
Write Word 0
Thermocouple3 Type Thermocouple 2 Type Thermocouple 1 Type Thermocouple 0 Type Write Word 1
Thermocouple 7 Type Thermocouple 6 Type Thermocouple 5 Type Thermocouple 4 Type Write Word 2
Where: FFE = Fixed Filter Enable
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