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Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840) APPENDIX A-4: Signal I/O Definitions
A-27
Signal Name Bit or Channel
Number
Description
Alarm outputs, U21, J1009, pins 1–12 = bits 4–7, default I/O address 325 hex
ST_SYSTEM_OK2 4 1 = system OK
0 = any alarm condition or in diagnostics mode
ST_CONC_ALARM_1
8
5 1 = conc. limit 1 exceeded
0 = conc. OK
ST_HIGH_RANGE
10 + 13
5 1 = high auto-range in use
0 = low auto-range
ST_CONC_ALARM_2
8
6 1 = conc. limit 2 exceeded
0 = conc. OK
ST_ZERO_CAL
10 + 13
6 1 = in zero calibration
0 = not in zero
ST_HIGH_RANGE2
16
7
1 = high auto-range in use (mirrors ST_HIGH_RANGE
status output)
0 = low auto-range
A status outputs, U24, J1017, pins 1–8 = bits 0–7, default I/O address 323 hex
ST_SYSTEM_OK 0 0 = system OK
1 = any alarm condition
ST_CONC_VALID 1 0 = conc. valid
1 = hold off or other conditions
ST_HIGH_RANGE 2 0 = high auto-range in use
1 = low auto-range
ST_ZERO_CAL 3 0 = in zero calibration
1 = not in zero
ST_SPAN_CAL 4 0 = in span calibration
1 = not in span
ST_DIAG_MODE 5
0 = in diagnostic mode
1 = not in diagnostic mode
ST_AUTO_REF
3
6
0 = in auto-reference mode
1 = not in auto-reference mode
7 Spare
B status outputs, U27, J1018, pins 1–8 = bits 0–7, default I/O address 324 hex
ST_AUTO_REF
2
0
0 = in auto-reference mode
1 = not in auto-reference mode
1–5 Spare
ST_CO2_CAL
7
6 0 = in CO
2
calibration
1 = not in CO
2
calibration
ST_O2_CAL
5
7 0 = in O
2
calibration
1 = not in O
2
calibration
04188D DCN5752