Rockwell Automation 1771-IFF/A,D17716.5.116 FAST ANALOG INPUT MODULE User Manual
Page 65

7-3
Publication 1771Ć6.5.116 - May 1996
Description
Decimal Bit
(Octal Bit)
Word
Word22
Bits 00-15
(00-17)
Gain calibration results bits - Each bit represents a channel. After a
calibration BTW has been sent, the module confirms calibration by
echoing back the channels that were calibratedduring the gain
calibration BTW. In differential mode, channels 09 thru 16 are zero.
Word23
Bits 00-15
(00-17)
Time Stamp- This wordis a 1ms counter to timestamp the Block
Transfer Read. You can subtract the time stamp of 1 BTR from
another to findthe difference. The counter is a 15Ćbit rolling counter,
which counts from 0 to 32767, andthen rolls over to 0.
Word24
Bits 00-15
(00-17)
Scan Time - This wordcontains the rate at which the inputs are being
updated.
Table 12.B
Input Range Selection
Voltage input
Current input
1
1 to 5V d c
4 to 20mA
0 to 5V d c
0 to 20mA
1
-5 to +5V dc
-20 to +20mA
2
-10 to +10V dc
2
0 to 10V dc
1
Current input mode selected by configuration plug.
2
Configurable using bi-polar scaling.