Honeywell CM4 - Get Alarm History - 0 X36

18 Rev. 2.4 (3/05)
Honeywell Analytics CM4 Protocol Manual
Get Alarm This command queries the unit for any alarms. The unit
History saves only the 16 most recent alarms regardless of point.
0x36 The alarms can all be on one point or there can be alarms
from several points.
Command packet to instrument:
Command Code (0x36) - 1 byte
Response packet from instrument:
Command Code (0x36) - 1 byte
CM4 Date - 2 bytes
CM4 Time - 2 bytes
# of Alarms - 1 byte
(alarm data, up to 16 possible)
CM4 Date of Alarm - 2 bytes
CM4 Time of Alarm - 2 bytes
Gas Abbr. 6 bytes
Point # - 1 byte
bits 0-1: Point #
00 = Point 1
01 = Point 2
10 = Point 3
11 = Point 4
bits 2-7: Undened
Format Code - 1 byte
Conc. - 2 bytes
Alarm Level - 1 byte
bit 0: Alarm Level
0 = Level 1
1 = Level 2
bits 1-5: Undened
bit 6: Previously Read
0 = new (not previously read)
1 = old (previously read)
bit 7: Undened