Lightwave Communications manual LDX-3232 Status Reporting Schematic Diagram

REMOTE OPERATION

Status Reporting

C H A P T E R 3

For example, the user may turn the current source on (LAS:OUT 1), enable an SRQ on Operation Complete (set *ESE 1 and *SRE 5), and have an SRQ handling routine in the user's software, that reads a new measurement after the output on state has been reached. This allows the use of the operation complete features of the LDX-3232, without the need for program looping or polling that can tie up the GPIB. Operation Complete on the LDX-3232 is defined as:

1No operations to the LASER current source hardware are pending.

2No EEPROM (non-volatile) memory write cycles are in progress.

		Standard											LASER Condition Status Register
	Event Status Register													LASer:COND?										0	– Current Limit
			*ESR?
																								1	– Voltage Limit
											15 14 13 12 11 10			9	8	7	6	5	4	3	2	1	0
7	6	5	4	3	2	1	0	0	- Operation Complete															2	– N/A
																								3	– Power Limit
								1	- Request Control		&
&	&	&						2	- Query Error		&	&	&											4	– Interlock
LOGICAL			&					3	- Device-Dependendent Error															5	– N/A
				&	&								&	&										6	– Comp. Voltage Limit
OR								4	- Execution Error				&		&
						&	&	5	- Command Error		LOGICAL					&								7	– Open Circuit
																	&							8	– Output Shorted
								6	- User Request		OR							&	&
7	6	5	4	3	2	1	0	7	- Power On											&	&	&		9	– Out of Tolerance
		Standard																					&	10		– Output On
									QUEUE															11		– Ready for Calibration
	Event Status Enable										15 14 13 12 11 10			9	8	7	6	5	4	3	2	1	0	12		– N/A
		Register							NOT-EMPTY	{														13		– N/A
			*ESE										LASER Condition Status Enable											14		– N/A
			*ESE?							OUTPUT														15		– N/A
										QUEUE			LAS :ENABle :COND
														LAS :ENABle :

											Status Byte Register					LASER EventStatus Register												0	– Current Limit
																		LASer:EVEnt?
SERVICE	{										*STB?																	1	– Voltage Limit
										0	– N/A			15 14 13 12 11 10				9	8	7	6	5	4	3	2	1	0	2	– N/A
REQUEST		7	6	5	4	3	2	1	0
GENERATION										1	- N/A			&														3	– Power Limit
		&																										4	– Interlock
										2	– LASER Event				&
	LOGICAL			&	&					3	– LASER Cond.				&	&	&											5	– N/A
						&				4	- Message Available																	6	– Comp. Voltage Limit
	OR						&	&									&	&	&									7	– Open Circuit
									&	5	- Event Status Summary		LOGICAL							&								8	– Output Shorted
										6	- Request Service/Master Status Summary										&	&
	{	7		5	4	3	2	1	0	7	- Error Available		OR										&	&				9	– Tolerance Change
																									&	&		10		– Output On/Off change
		Service Request Enable																									&	11		– New Measurement Ready
				Register																								12		– N/A
QUEUE				*SRE										15 14 13 12 11 10				9	8	7	6	5	4	3	2	1	0	13		– N/A
				*SRE?																								14		– N/A
NOT-EMPTY
																	LASER EventStatus Enable											15		– N/A
{
																	LAS :ENABle :EVEnt
ERROR
QUEUE																		LAS :ENABle :
									Figure 3.2			LDX-3232 Status Reporting Schematic Diagram

Note: If the GPIB times out while waiting for a response, either set the GPIB time-our longer or use SRQ generated interrupts in your program. See your GPIB manual for time-out configuration or SRQ programming setup.

The *OPC, *OPC? and *WAI commands should not be used inside a calibration routine.

04_06 LDX-3232 29