Rockwell Automation 1771-N SERIES High Resolution Analog Module User Manual - Manual (Page 137)

Block Transfer Write and Block Transfer Read Configurations for 3 Output/5 Input 1771-N Series Modules G–5
Publication 1771ĆUM127B-EN-P - December 2002
Definition
Decimal Bit
(Octal Bit)
Word
Bits 08-15
(10-17)
Filter time constant. Specifies the time constant of a digital, first order lag filter on the
input in 0.1 second units. Legal values are 0.1 to 9.9 seconds. A value of 0 disables
the filter.
Bits 00-07
10 ohm offset. Compensates for a resistance offset on a 10 ohm copper RTD. Range
of +0.99 ohms, in units of 0.01 ohms. This field must be 0 for all other RTDs.
Bits 08-10
(10-12)
RTD type. Specifies type of RTD linearization on RTD channels:
001 = 100 ohm Pt, European standard;
010 = 100 ohm Pt. US standard;
011 = 10 ohm copper;
100 = 120 ohm nickel.
This field is 0 for non-RTD channels.
Word 30
Bit 11 (13) Constant = 0
Word 30
Bits 12-15
(14-17)
Thermocouple type. Specifies type of TC linearization on TC channels.
0000 = millivolts;
0001 = B;
0010 = E;
0011 = J;
0100 = K;
0101 = R;
0110 = S;
0111 = T.
This field must be 0 for non-thermocouple channels.
Words 31 thru 37 Same as words 24 thru 30 but for channel 5.
Words 38 thru 44 Same as words 24 thru 30 but for channel 6.
Words 45 thru 51 Same as words 24 thru 30 but for channel 7.
Words 52 thru 58 Same as words 24 thru 30 but for channel 8.