CM4 Four-Point Continuous Monitor
CM4 Technical Manual
viii
Table of Contents
D.2 Jumpers ........................................................................................................ D-3
D.3 Cabling .......................................................................................................... D-4
D.3.1 EMC Considerations ..................................................................... D-4
D.3.2 Cabling Diagrams .......................................................................... D-5
D.4 Instructions and Checklist ..................................................................... D-7
D.5 Other Applications ................................................................................... D-9
E Serial Communications Protocol
E.1 Introduction ................................................................................................. E-2
E.1.1 Overview .................................................................................................... E-2
E.1.2 Communication Port ............................................................................. E-2
E.1.3 Set up Procedure ..................................................................................... E-3
E.1.4 Protocol Specifics .................................................................................... E-3
Data and Packets ....................................................................................... E-3
Checksum (Check Character) ................................................................ E-4
ACK/NAK Handshake ............................................................................... E-4
.......................................................................... E-5
NOP - 0x28 ................................................................................................... E-7
Get System Information - 0x30 ............................................................. E-7
Get Unit Status - 0x31 .............................................................................. E-8
Get Idle Time - 0x32 ................................................................................E-10
Get Date & Time - 0x33 ..........................................................................E-10
Get Maintenance Dates - 0x34 ............................................................E-10
Get Point Configuration - 0x35 ...........................................................E-11
Get Alarm History - 0x36 .......................................................................E-11
Get Current Point Status - 0x37 ..........................................................E-12
Get TWA Time - 0x38 ..............................................................................E-12
Get Display Cycle Time - 0x39 ........................................................E-12
Get the Number of Gas Tables Available - 0x3A ...........................E-13
Get Printer Setup - 0x3B ........................................................................E-13
Get Gas Table Data - 0x3C .....................................................................E-13
Get Fault History - 0x3D ........................................................................E-14
Get K-Factor - 0x3E ..................................................................................E-14
Get Pyrolyzer Temperatures - 0x42 ...................................................E-15
Get Pump Limits - 0x43 .........................................................................E-15
Get Filter Life - 0x44 ................................................................................E-15
Get Floating Status - 0x45 ....................................................................E-16
Get One Alarm - 0x47 ............................................................................E-17
E.4 Configuration and Directive Commands .........................................E-17