EPS RS 232 - Internal Resistance and Controller Commands (RA, REGLER)

Universal interface (Option)
Example:
PC1 Query of first interface parameters
PC1,RS232,9600,N,8,2,N,E Unit answers: PC1 is a RS232 interface, 9600 bauds, 8 data bits, 2 stop bits, no handshake, no
parity, echo on.
PC1,115200,N,8,2,N,E Adjust baud rate to 115200 baud.
The new baud rate is active immediately after the command has been sent!
PC2 Query of second interface parameters
PC2,RS485,9600,N,8,1,1 Unit answers: PC2 is a RS485 interface, 9600 bauds, 8 data bits, 1 stop bit.
Timeout when switching between receiving and sending is 1 ms.
PC2,9600,N,8,1,50 Increase timeout to 50ms.
PC3 Query of third interface parameters
PC3, EMPTY Unit answers: Interface 3 is not available in this unit.
SS Save settings.
RA[,<R
i
>] - Set R
i
This command adjusts the internal resistance for UIR mode. Entering the command without parameters displays the
present set point. If the set point is out of adjustment range the range error bit of the interface is set in the ESR
register. The present set point remains unchanged. Adjustment range can be requested with the commands
LIMRMAX and LIMRMIN .
Example:
GTR Remote operation mode
MODE,UIR UIR mode activated
OVP,200 Over voltage protection 200 V
UA,100 Output voltage 100 V
IA,10 Output current 10 A
RA,0.1 Internal resistance 0,1 Ohm
SB,R Output open
REGLER[,<Nr>,<Kp>,<Ki>,<Kd>] – Controller Parameter
Settings for controller parameters in UIP, UIR and PV
sim
mode. Entering the command without parameters displays the
present settings as a table. The number of the parameter determines the parameter set which is to be adjusted.
0 Controller for UIP
1 Controller for UIR
2 Controller for PV
sim
The range of values for controller parameters is 0 - 30000. New settings can permanently be saved with the command
SS . For a detailed description of the controller parameters see Controller.
Example:
REGLER Read present settings
Type P I D
P 10 20 5
Ri 20 20 2
Pv 10 5 5
Unit answers:
UIP Mode Kp = 20 Ki = 10 Kd = 5
UIR Mode Kp = 20 Ki = 20 Kd = 5
PV Mode Kp = 10 Ki = 5 Kd = 5
REGLER,0,10,10,5 New controller parameters for UIP mode
REGLER,1,22,18,5 New controller parameters for UIR mode
SS Save new settings
RI or *RST - Reset Instrument
The unit executes a hardware reset. No return value.