ILX Lightwave LDX-32420, User Manual

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R E M O T E O P E R A T I O N
Status Reporting
34
LDX-32420
C H A P T E R
3

For example, the user may enable the current source output (
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-32420, without the need for program looping or
polling that can tie up the communication bus. Operation Complete on the
LDX-32420 is defined as:
1 No operations to the LASER current source hardware are pending.
2 No EEPROM (non-volatile) memory write cycles are in progress.
Figure 3.2 LDX-32420 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.
&
&
&
&
&
&
&
&
LOGICAL
OR
Standard
Event Status Enable
Register
*ESE
*ESE?
Service Request Enable
Register
*SRE
*SRE?
LOGICAL
OR
&
&
&
&
&
&
&
0 - Operation Complete
1 - Request Control
2 - Query Error
3 - Device-Dependendent Error
4 - Execution Error
5 - Command Error
6 - User Request
7 - Power On
0 – N/A
1 - N/A
2 – LASER Event
3 – LASER Cond.
4 - Message Available
5 - Event Status Summary
6 - Request Service/Master Status Summary
7 - Error Available
Status Byte Register
*STB?
SERVICE
REQUEST
GENERATION
{
OUTPUT
QUEUE
NOT-EMPTY
QUEUE
QUEUE
NOT-EMPTY
QUEUE
ERROR
{
{
{
Standard
Event Status Register
*ESR?
0 1 2 3 4 5 6 7
0 1 2 3 4 5 7
0 1 2 3 4 5 6 7
0 1 2 3 4 5 6 7
0 1 2 3 4 5 6 7
7 6 5 4 3 2 1 0
&
&
&
&
&
&
&
&
15 14 13 12 11 10 9 8
&
&
&
&
&
&
&
LAS : ENABl e :
LAS : ENABl e : COND
LASER Condi ti on Status Enabl e
LASER Condi ti on Status Regi ster
LASer : COND?
&
8 9 10 11 12 13 14 15
LOGI CAL
OR
LOGI CAL
OR
15 14 13 12 11 10 9 8
&
LASer : EVEnt?
LASER Event Status Regi ster
LASER Event Status Enabl e
LAS : ENABl e : EVEnt
LAS : ENABl e :
&
&
&
&
&
&
&
8 9 10 11 12 13 14 15
&
&
&
&
&
&
&
&
0 1 2 3 4 5 6 7
7 6 5 4 3 2 1 0
0 – Current Limit
1 – Voltage Limit
2 – N/A
3 – Power Limit
4 – Interlock
5 – N/A
6 – Comp. Voltage Limit
7 – Open Circuit
8 – Output Shorted
9 – Out of Tolerance
10 – Output On
11 – Ready for Calibration
12 – N/A
13 – N/A
14 – N/A
15 – N/A
0 – Current Limit
1 – Voltage Limit
2 – N/A
3 – Power Limit
4 – Interlock
5 – N/A
6 – Comp. Voltage Limit
7 – Open Circuit
8 – Output Shorted
9 – Tolerance Change
10 – Output On/Off change
11 – New Measurement Ready
12 – N/A
13 – N/A
14 – N/A
15 – N/A