Allen-Bradley 1794-IRT8 - Thermocouple;Rtd;MV Input Module (1794-IRT8) Write Words; Output Mapping; Bit;Word Definitions for the Block Transfer Write Words for the Tc;Rtd;MV Input Module

Publication 1794-6.5.12 - November 1997
Writing Configuration to and Reading Status from Your Module with a Remote I/O Adapter 4-5
Thermocouple/RTD/mV Input Module (1794-IRT8) Write Words
Output Mapping
Bit/Word Definitions for the Block Transfer Write Words for the
TC/RTD/mV Input Module
Decimal
Octal
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00
Word ⇓ Write
0 Not used Data Format
Flt
Mode
Ch 0-3
Flt
Mode
Ch 4-7
Reference Jct. Filter Cutoff
1
TC/RTD
Ch. 4-7
Sensor Mode
Ch. 4-7
Sensor Mode Ch. 4-7 TC/RTD Ch. 0-3
Sensor
Mode
Ch. 0-3
Sensor Mode 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
Cmd
Flag
EDT command EDT command data
Word
Dec. Bits
(Octal Bits)
Description
Write Word 0 00-02 Input Filter Cutoff bits
Bit 02 01 00 Definition
000Hardware filtering only (default filtering)
0 0 1 40Hz
0 1 0 10Hz
0114Hz
1002Hz
1011Hz
1 1 0 0.5Hz
1 1 1 0.2Hz
Bits 03-05 Reference Junction – used when input type is set to thermocouple and sensor mode
is set to internal compensation. Sets a fixed reference junction to compensate all
thermocouple channels.
Bit050403Reference Junction
0000°C
00120°C
010
25
o
C
01130°C
10040°C
10150°C
11060°C
11170°C