Teledyne Model 300EU manual Signal Name, Bit or Channel, Description, Number, Rev K.6, A-13

M300EU Addendum to M300E/EM Manual APPENDIX A-4: Signal I/O Definitions for 300E/EM Series Analyzers, Rev. K.6

APPENDIX A-4: Signal I/O Definitions for 300E/EM Series Analyzers, Rev. K.6

Table A-7: Additional or Changed Test Signal I/O Definitions for M300EU, Revision K.6

Signal Name		Bit or Channel		Description
		Number
A status outputs, U24, J1017, pins 1–8 = bits 0–7, default I/O address 323 hex
ST_AUTO_REF		6	0	= in auto-reference mode
			1	= not in auto-reference mode
ST_CONC_ALARM_2		7	0	= conc. limit 2 exceeded
			1	= conc. OK
A status outputs, U24, J1017, pins 1–8 = bits 0–7, default I/O address 323 hex
ST_AUTO_REF		6	0	= in auto-reference mode
			1	= not in auto-reference mode
	Relay board digital output (PCF8574), default I2C address 44 hex
OVEN_HTR		3	0	= oven heaters on
			1	= off

Table A-8: M300E/EM Signal I/O Definitions Not Applicable to the M300EU, Revision K.6

Because the CO2 and O2 sensor options are not available on the M300EU, the following signals listed in Appendix A-4 of the M300E/EM Operators Manual (P/N 04288) are not present in the M300EU software.

Signal Name			Bit or Channel		Description
			Number
Alarm outputs, U21, J1009, pins 1–12 = bits 4–7, default I/O address 325 hex
ST_CONC_ALARM_1		5		1	= conc. limit 1 exceeded
				0 = conc. OK
ST_CONC_ALARM_2		6		1	= conc. limit 2 exceeded
				0	= conc. OK
A status outputs, U24, J1017, pins 1–8 = bits 0–7, default I/O address 323 hex
ST_CONC_ALARM_1		6		0	= conc. limit 1 exceeded
				1	= conc. OK
ST_CONC_ALARM_2		7		0	= conc. limit 2 exceeded
				1	= conc. OK
	Relay board digital output (PCF8574), default I2C address 44 hex
O2_CELL_HEATER 5		3		0	= O2 sensor cell heater on
				1	= off
			Rear board primary MUX analog inputs
O2_SENSOR		10		O2 concentration sensor
CO2_SENSOR		12		CO2 concentration sensor
			Rear board temperature MUX analog inputs
TEMP_INPUT_5		5		Diagnostic temperature input

05924 Rev K.6 A-13