
The Thurlby Thandar PL-P series offers
a high performance fully programmable
power supply system at low cost.
Based around the 32V-3A versions of the
standard PL series, the PL-P models in-
clude single, dual and triple output units
suitable for bench or rack mounting.
When not connected to the bus, these
PSUs can be operated exactly as a stan-
dard PL series PSU.
GPIB and RS-232 (ARC)
interfaces
Each PL-P series supply is fitted with
both a GPIB (IEEE-488) interface and an
ARC (addressable RS232) interface as
standard.
Both interfaces provide full bus control of
voltage and current settings along with
full readback of actual current and volt-
age levels.
The GPIB interface conforms fully with
IEEE-488.2 as well as IEEE-488.1. The
ARC interface can be used as a conven-
tional RS-232 interface or as part of a
multi-instrument ARC system.
On dual and triple output models a single
bus address controls all outputs.
Fully isolated outputs for
maximum flexibility
Each output is fully floating and is opto-
isolated from the bus interfaces.
Outputs can be linked in series or parallel
to produce higher voltages or higher cur-
rents as required.
High resolution control
and readback
Voltage and current levels can be set via
the bus to a resolution of 10mV and 1mA
for each main output.
The 7 Amp logic output of the PL330TP
can also be set to a resolution of 10mV
but the current control resolution is lim-
ited to 1 Amp steps.
Each main output can be read back via
the bus to a resolution of 10mV and
1mA.
G
Full bus control and readback of voltage and current.
G
GPIB interface conforms to IEEE-488.2.
G
ARC (Addressable RS-232) interface for low-cost
PC based control.
G
Can be operated as a conventional bench PSU.
G
Single, dual and triple output models available.
G
Triple output model incorporates fully controllable
high current logic output.
G
Rack mounting kit (4U) available for all models.
Simple and consistent
control
PL-P series supplies use simple and
consistent command structures which
make programming particularly easy re-
gardless of which interface is used.
A National Instruments LabWindows*
device driver is available as an option.
ARC, an exclusive Thurlby
Thandar innovation
ARC stands for “Addressable RS-232
Chain” and is a low-cost system for link-
ing instruments together so that they can
be controlled and monitored by a per-
sonal computer.
The ARC interface is an extension of the
industry standard RS-232 interface and
is exclusive to Thurlby-Thandar instru-
ments.
It differs from conventional RS-232 in
that it allows multiple instruments (up to
32) to be controlled using the normal
RS-232 or RS-422/423 port of a PC.
ARC provides a low-cost alternative to
GPIB which utilises lower cost instru-
ments, inexpensive cables, and can be
controlled by any personal computer
without the need for a special interface
card or special software.
* LabWindows is a trademark of National
Instruments Corporation.
Thurlby Thandar PL-P series
programmable power at surprisingly low cost
PL-P series