Et system LAB-HP/E Series Manual page 20

Universal interface
*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 >] - Over Voltage Protection
ovp
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
PCx[,<baud>,<parity>,<data bits>,<stop bits>,<handshake>,<echo>,<timeout>] - Program Communication
This command adjusts the interfaces. The LAB/HP/E has a maximum of 3 digital interfaces (x = 1, 2 or 3). The
corresponding commands are
Currently there are no settings available for GPIB and LAN. Entering the command without parameter displays present
interface parameters.
Parameter
<baud> Baud rate in bps
Data parity
O = Odd = Uneven parity
<parity>
E = Even = Even parity
N = None = No parity bit
<data bits> Number of data bits
<stop bits> Number of stop bits
Handshake
H = Hardware
<handshake>
S = Software
N = None (no handshake)
Character echo
<echo> E = Echo = echo on
N = None = echo off
<timeout> Timeout in ms when switching between sending and receiving (RS485 only)
Allowed parameters for RS232 interface:
PCx,<baud>,<parity>,<data bits>,<stop bits>,<handshake>,<echo>
Parameter
Baud: 1200, 2400, 4800, 9600, 14400, 19200, 38400, 57600, 62500, 115200
Parity: O, E, N
Data bits: 7, 8
Stop bits 1, 2
Handshake: H, S, N
Echo: E, N
14
PC1 PC2 PC3
, or . Type and number of parameters depend on the type of interface.
Function
Function
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