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Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840) APPENDIX A-7: MODBUS Register Map
A-35
Table A-8: Terminal Key Assignments
TERMINAL KEY ASSIGNMENTS
ESC Abort line
CR (ENTER) Execute command
Ctrl-C Switch to computer mode
COMPUTER MODE KEY ASSIGNMENTS
LF (line feed) Execute command
Ctrl-T Switch to terminal mode
APPENDIX A-7: MODBUS Register Map
Table A-9: MODBUS Register Map
MODBUS
Register Address
(dec., 0-based)
Description Units
MODBUS Floating Point Input Registers
(32-bit IEEE 754 format; read in high-word, low-word order; read-only)
0 Detector measure reading mV
2 Detector reference reading mV
4 M/R ratio. none
6 Slope for range #1 none
8 Slope for range #2 none
10 Offset for range #1 none
12 Offset for range #2 none
14
Concentration for range #1 during zero/span calibration, just before
computing new slope and offset
PPM
16
Concentration for range #2 during zero/span calibration, just before
computing new slope and offset
PPM
18 Concentration for range #1 PPM
20 Concentration for range #2 PPM
22 Concentration stability PPM
24 Bench temperature
C
26 Bench temperature control duty cycle Fraction
(0.0 = off,
1.0 = on full)
28 Wheel temperature
C
30 Wheel temperature control duty cycle Fraction
(0.0 = off,
1.0 = on full)
32 Sample temperature
C
34 Sample pressure “Hg
36 Internal box temperature
C
38 Photometer detector temperature drive mV
04188D DCN5752