Teledyne t320, t320u MODBUS Register Address (dec., 0-based) , Description Units

APPENDIX A-7: MODBUS Register Map Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)
A-36
MODBUS
Register Address
(dec., 0-based)
Description Units
40 Diagnostic test input (TEST_INPUT_7) mV
42 Diagnostic test input (TEST_INPUT_8) mV
44 Diagnostic temperature input (TEMP_INPUT_4) C
46 Diagnostic temperature input (TEMP_INPUT_5) C
48 Ground reference (REF_GND) mV
50 4096 mV reference (REF_4096_MV) mV
52 1 Purge pressure PSIG
54 1 Sample flow cc/m
56 1 Vacuum pressure "Hg
58 1 Internal box temperature #2/oven C
60 1 Internal box temperature #2/oven control duty cycle F raction
(0.0 = off,
1.0 = on full)
62 1 Auto-zero reading M/R
100 2 O
2 concentration %
102 2 O2 concentration during zero/span calibration, just before computing
new slope and offset
%
104 2 O
2 slope —
106 2 O
2 offset %
108 2 O
2 sensor cell temperature C
200 3 CO2 concentration %
202 3 CO2 concentration during zero/span calibration, just before
computing new slope and offset
%
204 3 CO2 slope —
206 3 CO2 offset %
MODBUS Floating Point Holding Registers
(32-bit IEEE 754 format; read/write in high-word, low-word order; read/write)
0 Maps to CO_SPAN1 variable; target conc. for range #1 Conc. units
2 Maps to CO_SPAN2 variable; target conc. for range #2 Conc. units
100 2 Maps to O2_TARG_SPAN_CONC variable %
200 3 Maps to CO2_TARG_SPAN_CONC variable %
06864B DCN6314