Rockwell Automation 1794-APB/B FLEX I/O PROFIBUS Adapter Module User Manual - 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.