
Publication 1794-UM064B-EN-P - May 2014
Communicate With Your Module 31
1794-IR8 Word/Bit Descriptions
Write Word 1 00…03 Channel 0 RTD Type
Bit 03 02 01 00 RTD Type – Range
0 0 0 0 Resistance (default)
0 0 0 1 No sensor connected – do not scan
0010100 Ω Pt α = 0.00385 Euro (-200...630 °C)
0011100 Ω Pt α = 0.003916 U.S. (-200...630 °C)
0100200 Ω Pt α = 0.00385 (-200...630 °C)
0101500 Ω Pt α = 0.00385 (-200...630 °C)
0 1 1 0 Reserved
011110 Ω Copper (-200...260 °C)
1000120 Ω Nickel (-60...250 °C)
1001100 Ω Nickel (-60...250 °C)
1010200 Ω Nickel (-60...250 °C)
1011500 Ω Nickel (-60...250 °C)
1 1 0 0 Reserved
1101…1111 – Reserved
04…07 Channel 1 RTD Type (see bits 00…03)
08…11 Channel 2 RTD Type (see bits 00…03)
12…15 Channel 3 RTD Type (see bits 00…03)
Write Word 2 00…03 Channel 4 RTD Type (see write word 2, bits 00…03)
04…07 Channel 5 RTD Type (see write word 2, bits 00…03)
08…11 Channel 6 RTD Type (see write word 2, bits 00…03)
12…15 Channel 7 RTD Type (see write word 2, bits 00…03)
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