KEPCO KLR Series Developers Guide - Manual (Page 65)

KLR-DEV 060713
5-3
5.4 USING THE VXI plug&play DRIVER
The example programs are provided to illustrate how to operate the KLR via a remote interface.
The three examples show the following functions:
• Setting Voltage and Current (PAR. 5.4.1)
• Using the Power Supply to Create a Voltage Ramp (PAR. 5.4.2)
• Measurements
5.4.1 EXAMPLE 1: SETTING VOLTAGE AND CURRENT
The simple routine shown in Figure 5-1 sets the power supply to a specific value, then leaves it
at this value. It opens the driver, calls the proper functions and then closes the driver. Four pos-
sible id_str variable statements have been provided, depending on the interface being used.
The id_str statements for the interfaces not used must be commented out, otherwise errors will
result.
Calibration Restore Kpklr_CalRestore instrument receives calibration data in Intel hex format and replaces
the Working Calibration.
ARBITRARY WAVEFORM FUNCTIONS (Standalone configuration only)
Clear List Kpklr_ListCl Clears the list to prepare for adding points.
Add Volt Step Value Kpklr_ListVolt Add a single voltage entry to the end of a list.
Add Current Step Value Kpklr_ListCurrent Add a single current entry to the end of a list.
Add Step Time Kpklr_ListDwell Add a single time entry to the end of a list.
Add relay control step
value Kpklr_ListControl Add a single relay control entry to the end of a list.
Query How Many Points Kpklr_Points Determines the maximum number of points on the list.
Add waveform to a list Kpbop_ListData Add waveform to a list.
Set list execution cycles Kpklr_ListCount A list can be run from 1- 65535 times. It can also be run continuously
if the value is set to 0. The KLR defaults to 1 on a list clear.
Run/stop LIST program Kpklr_Prog Runs or stops LIST program.
LIST Program Run Status Kpklr_Prog_Stat Status of LIST program (running or stopped)
STATUS FUNCTIONS
Set SRQ Condition Kpklr_SetSrqCond Sets SRQ Condition Bit.
Display Status Message Kpklr_getDisplay Displays message in Status Display.
Initialize Status Registers Kpklr_InitReg Clears status Operation and Event registers
Get Questionable Event Kpklr_StatQues Tests and returns contents of Questionable Event register.
Wait for Operation to
Complete Kpklr_WaitOPC~ Waits for operation to complete.
Wait for SRQ Kpklr_WaitSrq Waits for SRQ
TABLE 5-1. KLR VXI PLUG&PLAY DRIVER FUNCTIONS (CONTINUED)
Purpose Function Name Description