25 Rev. 2.4 (3/05)
Honeywell Analytics CM4 Protocol Manual
Get Pyrolyzer This command returns the temperatures of the
Temperatures four pyrolyzers, in integer degrees Celsius the
0x42 slave’s internal temperature. This is applies to a
model CM4-P only and not to an ordinary CM4.
Command Packet to slave:
Command code (0x42) - 1 byte
Response from slave:
Command code (0x42) - 1 byte
CM4 date 2 bytes
CM4 time 2 bytes
pyrolyzer temp pt1 - 2 bytes
pyrolyzer temp pt2 - 2 bytes
pyrolyzer temp pt3 - 2 bytes
pyrolyzer temp pt4 - 2 bytes
Status - 1 byte (always 0x00 as
implemented)
Get Pump Limits This command returns the user’s settings for
0x43 pump limits.
Command Packet to slave:
Command code (0x43) - 1 byte
Response from slave:
Command code (0x43) - 1 byte
CM4 date 2 bytes
CM4 time 2 bytes
High Limit - 2 bytes (defaults to 600)
Low Limit - 2 bytes (defaults to 400)
Status - 1 byte (always 0x00 as currently
implemented)