EPS RS 232, Manual

Page: 23 / 53

Universal interface (Option)
MU[,<Nr>] - Measure U
a
This command shows the measurement value of the present output voltage.
Example:
GTR
Remote operation mode
OVP,200 Over voltage protection 200 V
UA,10 Output voltage 10 V
IA,1 Output current 1 A
SB,R Output open
MU Measures present output voltage
MU,10.0V Unit answers: 10 V
In master/slave mode with serial connection the total current of all connected devices is displayed. Using the
parameter <Nr> will show the value of each connected device. Numbering starts with 0.
Example:
MU,1 displays the measured output voltage at the bus of device number 2.
*OPT? - Optional Identification Query
This command does an optional identification query, which means it displays the software version.
Example:
*OPT?
Query of version number
08.06.2012 V42 Unit answers: Version 42 vom 08.06.2012
OVP[,<U
ovp
>] - Over Voltage Protection
This command adjusts the over voltage protection. Entering the command without parameter displays the present set
point. If the set point is higher than a maximum of 1.2 x voltage of the unit, the range error bit within the ESR register
of the interface is set. The present set point remains unchanged.
Example:
GTR
Remote operation mode
OVP,200 Over voltage protection 200 V
UA,100 Output voltage 100 V
IA,10 Output current 10 A
SB,R Output open
PA[,<P
limit
>] - Set P
limit
This command adjusts the power limitation for UIP mode. Entering the command without parameter displays the
present set point. If the set point is higher than the maximum power of the unit, the range error bit within the ESR
register of the interface is set. The present set point remains unchanged.
Example:
GTR
Remote operation mode
MODE,UIP UIP mode activated
OVP,200 Over voltage protection 200 V
UA,100 Output voltage 100 V
IA,10 Output current 10 A
PA,500 Power limitation 500 W
SB,R Output open
In master/slave mode the power of a programmed device is adjusted. Total output is n x PA.
Example:
2 devices are in M/S mode. The command PA,100 sets the power output to 100 W. Both connected device are adjusted to 100 W. The
total output is 2 x 100 W = 200 W.