30 Rev. 2.4 (3/05)
Honeywell Analytics CM4 Protocol Manual
Conguration These are the commands and responses that the
and Directive CM4 system will support for remote control and
Commands conguration.
Set K-Factor This command congures the manual K-Factor
0x50 for a specic point. An individual point is given
a K-Factor times 1000. The K-Factor is used to
change the sensitivity of a point in the range of
0.200-5.000.
Command packet to instrument:
Command Code (0x50) - 1 byte
Point # - 1 byte
bit 0-1: Point to set K-Factor
00 = Point 1
01 = Point 2
10 = Point 3
11 = Point 4
bits 2-7: Undened
K-Factor (x 1000) value - 2 bytes (200-5000)
Response packet from instrument:
Command Code (0x50) - 1 byte
CM4 Date - 2 bytes
CM4 Time - 2 bytes
Status - 1 byte
0x00 = Point congured and veried
0x01 = Factor <0.200
0x02 = Factor >5.000
0xff = Save problem,
K-Factor unchanged