Rockwell Automation 1794-APB/B FLEX I/O PROFIBUS Adapter Module User Manual User Manual
Page 45
2–25
How Communication Takes Place and I/O Image Table Mapping
Publication 1794ĆUM057B-EN-P - November 2001
Description
Dec. Bits
(Octal Bits)
Word
Write word 1
00-01
Module Data Type
Bit
01
00
0
0
o
C (default)
0
1
o
F
1
0
Bipolar counts scaled between -32768 and +32767
1
1
Unipolar counts scaled between 0 and 65535
02
Enhanced mode select - measures voltage drop across a precision resistor in the module to
compare with the unknown input.
03-05
A/D Filter First NotchFrequency
Bit
05
04
03
Definition
0
0
0
10Hz (default)
0
0
1
25Hz
0
1
0
50Hz
0
1
1
60Hz
1
0
0
100Hz
1
0
1
250Hz
1
1
0
500Hz
1
1
1
1000hZ
06
Calibration High/Low bit - This bit is set during gain calibration; reset during offset calibration.
07
Calibration clock - this bit must be set to 1 to prepare for a calibration cycle; then reset to 0 to
initiate calibration.
08-15
Calibration mask - The channel, or channels, to be calibrated will have the correct mask bit set.
Bit 0 corresponds to channel 0, bit 1 to channel 1, and so on.