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3-2
Module Data, Status, and Channel Configuration for DeviceNet
Input Data File
Publication 1790-UM003A-EN-P
The input data table lets you access thermocouple/mV input module read
data for use in the control program, via word and bit access. The data
table structure is shown in the tables below.
Table 3.1 Input Data Table
Word/
15
14
13
Bit
0
1
2
3
4
Not Used
Table 3.2 Input Data Table
Word
Decimal Bit Description
Read Word 0 Bits 00-15
Read Word 1 Bits 00-15
Read Word 2 Bits 00-15
Read Word 3 Bits 00-15
Read Word 4 Bits 00-03
Bits 04-07
Bits 08-11
Bit 12-15
Input Data Values
Data words 0 through 3 correspond to channels 0 through 3 and contain
the converted analog input data from the input device.
Under-Range Flag Bits (S0 to S3)
Under-range bits for channels 0 through 3 are contained in word 4, bits
0-3. When set (1), the under-range flag bit indicates a thermocouple
temperature that is less than the minimum allowed temperature. The
module automatically resets (0) the bit when the data value is again
within the normal operating range.
12
11
10
9
8
Thermocouple Input Data Channel 0
Thermocouple Input Data Channel 1
Thermocouple Input Data Channel 2
Thermocouple Input Data Channel 3
S11
S10
S9
S8
Channel 0 input data
Channel 1 input data
Channel 2 input data
Channel 3 input data
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.
Not used: Set to 0
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.
Not used: Set to 0.
7 6 5 4 3
2
1
Not Used
S3
S2
S1
0
S0
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