Filter
Top Products
8-30 Field Control™ Genius® Bus Interface Unit User’s Manual
–
October 1999 GFK-0825F
8
Intelligent Analog Module Recalibration Datagram
Subfunction Code: 21 hex
This datagram can be used to recalibrate a 16 Point Analog Grouped module (IC670ALG240), to
restore the factory calibration, or to place the module into “warmup” mode for recalibration.
Byte Value Description
0 F6 hex Message code
1 18 hex Command code
2 Slot # The module's slot number
30Reserved
4 0 Offset of the Least Significant Byte of the data
5 0 Offset of the Most Significant Byte of the data
6 length of data Data length as shown in the following tables.
7-133 data See below.
Message Content for Calibrating Low End of Channel
Byte Value Description
70Reserved
8 Channel # Channel to be calibrated (0 - 15)
9 0 Request to calibrate low end
10, 11 Current in microAmps.
Recommended range is 3500 to 4500 microAmps.
12, 13 0-65535 Number of readings to average.
14 - 20 0 Reserved
Message Content for Calibrating High End of Channel
Byte Value Description
70Reserved
8 Channel # Channel to be calibrated (0 - 15)
9 1 Request to calibrate high end
10, 11 Current in microAmps.
Recommended range is 19500 to 20500
microAmps.
12, 13 0-65535 Number of readings to average.
14 - 20 0 Reserved