Rockwell-automation 1790-XXXX CompactBlock LDX I/O DeviceNet RTD and T Manual de usuario descargar pdf (Pagina 16)

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Publication 1790-IN011B-EN-P - April 2003

1790D-4T0, -T4T0 Input Data File

Word/Bit Descriptions for 1790D-4T0, -T4T0 Thermocouple Module

Word Bit Position

1514131211109876543210

0 Thermocouple Input Data Channel 0

1 Thermocouple Input Data Channel 1

2 Thermocouple Input Data Channel 2

3 Thermocouple Input Data Channel 3

4 Not Used S11 S10 S9 S8 Not Used S3 S2 S1 S0

Word Decimal Bit Description

Read Word 0 Bits 00-15 Channel 0 input data

Read Word 1 Bits 00-15 Channel 1 input data

Read Word 2 Bits 00-15 Channel 2 input data

Read Word 3 Bits 00-15 Channel 3 input data

Read Word 4

Bits 00-03 Underrange for individual channels - Bit 00 corresponds to

input channel 0, bit 01 corresponds to input channel 1 and

so on.

When set (1) the input signal is below the input channel’s

minimum range.

Bits 04-07 Not used: Set to 0

Bits 08-11 Overrange for individual channels - Bit 08 corresponds to

input channel 0, bit 09 corresponds to input channel 1 and

so on.

When set (1) the input signal is above the input channel’s

maximum range, or open thermocouple is detected.

Bits 12-15 Not used: Set to 0

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 22 23 24

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