Honeywell CM4 Operating Instructions Manual page 39

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Start New Cycle
0x55
Program
Chemcassette
Counter - 0x56
This command allows you to toggle the unit into
and out of the Monitor mode.
Command packet to instrument:
Command Code (0x55) - 1 byte
State - 1 byte
bit 0: Take/put into analysis
bits 1-7: Undefined
Response packet from instrument:
Command Code (0x55) - 1 byte
CM4 Date - 2 bytes
CM4 Time - 2 bytes
Status - 1 byte
This command enables/disables the
Chemcassette counter. When enabled, the
system will provide a fault when there is
approximately 24 hours of Chemcassette
remaining.
Command packet to instrument:
Command Code (0x56) - 1 byte
Enable/disable -1 byte
bit 0: Enable/disable the
Chemcassette counter
bits 1-7: Undefined
Response packet from instrument:
Command Code (0x56) - 1 byte
CM4 Date - 2 bytes
CM4 Time -2 bytes
Return Status - 1 byte
34
CM4 Protocol Manual
0 = Take out of Monitor
mode
1 = Put in Monitor or pull
window
0x00 = Request Executed
0xff = Error
0 = Disable
1 = Enable
0x00 = Counter is enable/
disable
0x01 = No windows left
0x02 = Maintenance status
exists (Low Chemcassette)
0xff = Error in programming
counter
Rev. 2.4 (3/05)