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EDH0170FE1010 – 09/98
LDS1000 Controller for Laser Diode Sensors
• BAUD RATE : 9600
• MSG TERM : CR
• WORD LENGTH
: 8
• STOP BITS : 1
• PARITY : NONE
Start up the LDS1000 Controller and check, in Manual mode, the interface
parameters by selecting the RS-232-C protocol.
=>
(
F4
) =>
(
F2
)
If the display is:
The RS-232-C interface is active (otherwise press the
(
F1
) key of the
controller to return to the RS-232-C protocol).
Use
(
F2
) mode to visualize and modify the interface parameters if
necessary.
Return to the main display menu of the controller with the
(
F5
) key.
The system is ready to communicate in RS-232-C.
RECOMMANDATION
Refer to the Appendix A: “Example of Program Using RS-232-C Link”.
10.1.2
IEEE-488 Interface
IEEE-488 interface is only possible if the computer is equipped with an IEEE-
488 communication card. Several models are available on the market.
RECOMMANDATION
NEWPORT recommends the National Instrument AT-GPIB/TNT card for
its software.
An IEEE-488 cable is required for the interface between the LDS1000
Controller and the IEEE-488 card. The cable is symmetrical and allows seve-
ral instruments to be chained. This is the advantage of a parallel interface.
When setting up, make sure the support screws are properly tightened.
The communication must be obtained with a program. Read the software
documentation to configure the parameters of the IEEE-488 output. It is
recommended, as far as possible, to select the following parameters, that
are the LDS1000 Controller’s default parameters:
• MSG TERM : CR LF
• PRIM ADRESS : 15
• SECOND ADRESS : 00
• TIME OUT : 0.5 sec
The controller operates the IEEE-488 interface in SRQ mode: the controller
status can be read with the SPOL function of the IEEE-488 card. This status
is coded by an 8 bits word, bit 7 of which (value 128) is worth 1 if a messa-
ge is near: The reading must always be carried out before a new request.
