Technical data

With the help of the ENTER button [12] the menu point is confirmed and the following
message is displayed:
INTERFACE
SEL : [RS 232C]
On pressing cursor buttons “∧” and “∨” [13] the desired interface GPIB or RS 232C is set.
The new setting RS 232C is saved with the ENTER button [12] and the following message
appears on the display [5]:
RS 232C
RATE: [24ØØ Bd]
On pressing cursor buttons “
∧” and “∨” [13] the selected transmission rate from 12ØØ Bd to
96ØØ Bd is set. The new setting is saved with the ENTER button [12] and the following
message appears on the display [5]:
RS 232C
PROT: [RTS/CTS]
On pressing cursor buttons “
∧” and “∨” [13] the communication protocol can be changed.
With the help of the ENTER button [12] the current protocol is saved and the settings are
finished.
After switching off the settings are saved.
7.2 Transition: Remote Control ⇔ Local Control
On transmission of the command REN from the personal computer the power supply unit is in
the state of REMOTE CONTROL which is indicated by the LED REMOTE [14]. Afterwards
control of the unit by the local control elements is not possible (except LOCAL button [14]).
On changing to remote control the outputs of sources A and B are deactivated.
There are several ways of switching from remote control to local control of the unit:
- by transmission of the command GTL (Go To Local) from the PC,
- by pressing the LOCAL button [14] on the power supply unit if the unit keyboard
has not been locked by the command LLO (Local Lock Out),
- by switching off and on the power switch [1].
The following enquires and instructions can be transmitted and received by the PC even when
the unit is on local control:
*IDN?,*CLS,*ESR?,*ESE,*ESE?,*STB?,*SRE,*SRE?,ERR?,DER?.
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Operating Instructions PN 300
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