Rockwell Automation 1771-N SERIES High Resolution Analog Module User Manual - Manual (Page 56)

4–16 Configuring the Module
Publication 1771ĆUM127B-EN-P - December 2002
Bit/Word Description of Word 0
Word Bit Definition
Word 0 00Ć03 Constant = 0
Bits 04Ć07 Number of outputs = 0010
Bits 10Ć15 Constant = 00 1000
Bits 16Ć17 Block transfer write type = 10
The next group of words sets the outputs of the module, if the
module has outputs. For example, if this is a 2 output/6 input
module, words 1 and 2 would contain the data for the two output
channels. If the module has four outputs, words 1 thru 4 would
contain output channel data.
Output Configuration Words 1 and 2
Word/Dec. Bit 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
Word/Octal Bit 17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00
1 Channel 1 Output Data
2 Channel 2 Output Data
Bit/Word Description of Output Configuration Words 1 and 2
Word
Decimal Bit
(Octal Bit)
Definition
Word 1 Bits 00Ć15 (00Ć17) First Output channel data
Word 2 Bits 00Ć15 (00Ć17) Second Output channel data
Additional module configuration data is contained in the next two
words. This includes verify, temperature scale, BCD select, cold
junction alarm enable and real time sample time. These are explained
in the bit/word description.
Output Configuration Words 3 and 4
Word/Dec. Bit 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
Word/Octal Bit 17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00
3
CJ alarm
enable
Unused = 0
BCD
select
Temp
scale
Verify
4 RTS Sample Time: 1 millisecond units