Lightwave Communications LDX-3232 User Manual
Page 45
R E M O T E O P E R A T I O N
Status Reporting
04_06
LDX-3232
29
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:
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-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.
&
&
&
&
&
&
&
&
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