Rockwell Automation 1790D-XXXX DeviceNet Analog Base Terminal Block CompactBlock LDX I/O - Manual (Page 11)

11
Publication 1790-IN002B-EN-P - April 2003
Once you have properly wired the drop line to the connector,
attach the connector to the block. If applicable, use the
locking screws on the connector to fasten it to the block.
I/O Memory Mapping
1790D-TN4C0, -TN4V0 Input Data File
Word/Bit Descriptions for 1790D-TN4C0, -TN4V0 Analog Input Module
Wor
d Bit Position
1
5 1
4 1
3 1
2 1
1 1
0 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 S
3 S
2 S
1 S
0
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 (4-20mA current input only)
• Under range (4-20mA 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