Teledyne M300EM operation manual Signal Name, Bit or Channel Number, Description, A-27

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840) APPENDIX A-4: Signal I/O Definitions

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 CO2 calibration
		1	= not in CO2 calibration
ST_O2_CAL 5	7	0	= in O2 calibration
		1	= not in O2 calibration

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