Honeywell CM4 - Page 18

13 Rev. 2.4 (3/05)
Honeywell Analytics CM4 Protocol Manual
(Get Unit Status bit 13: Relay state
0x31, continued) 0 = De-energized
1 = Energized
bit 14: Relay Latching state
0 = Non-latching
1 = Latching
bit 15: Alarm Simulation state
0 = Unit not in alarm
simulation mode
1 = Unit in alarm simulation
mode
New Events - 1 byte
bit 0: The alarm history contains an
entry which has not been read via
packet 0x36 or 0x47.
1 = a new entry exists
0 = no new entries
bit 1: The fault history contains an
entry which has not been read via
packet 0x3D
1 = a new entry exists
0 = no new entries
bits 2-7: undened
Concentration Summary - 1 byte
bits 0-1: concentration summary
integer (CSI) for point 1
bits 2-3: CSI for point 2
bits 4-5: CSI for point 3
bits 6-7: CSI for point 4
The CSI expresses the concentration
relative to the alarm levels according to the
following enumeration:
0 0.0 == concentration
1 0.0 < concentration < AL1
2 AL1 <= concentration < AL2
3 AL2 <= concentration
Chemcassette windows remaining - 2 bytes
Chemcassette days remaining - 2 bytes
Internal Filter 2 bytes (days in use)
External Filter - 2 bytes (days in use)
Flow Rate Point 1 - 2 bytes (cc/Min)
Flow Rate Point 2 - 2 bytes
Flow Rate Point 3 - 2 bytes
Flow Rate Point 4 - 2 bytes
(continued)