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Rockwell Automation Publication 1790-UM001B-EN-P - April 2021
Chapter 3 Module Data, Status, and Channel Configuration for Analog Input Modules
•
1790-8BV8BX, 1790-T8BV8BX discrete expansion module
•
1790-8BV8VX, 1790-T8BVX discrete expansion module
•
1790-T8A0X discrete expansion module
shows the structure for an analog base module with two 16-input 1790-
16BV0X, 1790-T16BV0X discrete expansion modules.
Table 15 - 1790D-N4C0, 1790D-TN4C0, 1790D-TN4V0 Input Data File with 24-Bit Discrete
Expansion Module
Word
Bit Position
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
Not Used
Analog Input Data Channel 0
1
Not Used
Analog Input Data Channel 1
2
Not Used
Analog Input Data Channel 2
3
Not Used
Analog Input Data Channel 3
4
Not Used
S3
S2
S1
S0
5
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
6
Not Used
D23
D22
D21
D20
D19
D18
D17
D16
Table 16 - Word/Bit Description
Word
Decimal Bit
Description
Read Word 0
Bits 00…11
Channel 0 input data
Bits 12…15
Not used: Set to 0
Read Word 1
Bits 00…11
Channel 1 input data
Bits 12…15
Not used: Set to 0
Read Word 2
Bits 00…11
Channel 2 input data
Bits 12…15
Not used: Set to 0
Read Word 3
Bits 00…11
Channel 3 input data
Bits 12…15
Not used: Set to 0
Read Word 4
Bits 00…03
Status bits for individual channels — Bit 00 corresponds to input channel 0, bit 01
corresponds to input channel 1 and so on. When set (1) indicates:
No field power
Open wire —
4…20 mA current input only
Under range —
4…20 mA current input only
Recoverable module fault (whole channel to be set)
Unrecoverable module fault (whole channel to be set)
Bits 04…15
Not used: Set to 0
Read Word 5
Bits 00…15
First discrete Input expansion data
Read Word 6
Bits 00…07
Second discrete Input expansion data
Bits 08…15
Not Used
Table 17 - 1790D-N4C0, 1790D-TN4C0, 1790D-TN4V0 Input Data File with 32-Bit Discrete
Expansion Module
Word
Bit Position
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
Not Used
Analog Input Data Channel 0
1
Not Used
Analog Input Data Channel 1
2
Not Used
Analog Input Data Channel 2
3
Not Used
Analog Input Data Channel 3
4
Not Used
S3
S2
S1
S0
5
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
6
D31
D30
D29
D28
D27
D26
D25
D24
D23
D22
D21
D20
D19
D18
D17
D16
Table 18 - Word/Bit Descriptions
Word
Decimal Bit
Description
Read Word 0
Bits 00…11
Channel 0 input data
Bits 12…15
Not used: Set to 0
Содержание Allen-Bradley 1790D-N0C2
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Страница 24: ...24 Rockwell Automation Publication 1790 UM001B EN P April 2021 Chapter 2 Installation and Wiring Notes ...
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Страница 63: ...Rockwell Automation Publication 1790 UM001B EN P April 2021 63 CompactBlock LDX I O Analog Modules User Manual ...