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Word/bit descriptions for 1790p-t4r0 rtd module – Rockwell Automation 1790-TXXXX CompactBlock LDX I/O Profibus Analog, RTD and Thermocouple User Manual

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Publication 1790-IN010B-EN-P - April 2003

Word/Bit Descriptions for 1790P-TN0C2 Analog Output Module

1790P-T4R0 RTD Module Input Data File

Word/Bit Descriptions for 1790P-T4R0 RTD Module

Word

Decimal Bit

Description

Write Word
0

Bits 00-11

Channel 0 output data

Bits 12-15

Not used: Set to 0

Write Word
1

Bits 00-11

Channel 1 output data

Bits 12-15

Not used: Set to 0

Word

Bit Position

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

0

RTD Input Data Channel 0

1

RTD Input Data Channel 1

2

RTD Input Data Channel 2

3

RTD 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 RTD is detected.

Bits 12-15

Not used: Set to 0