Specifications

SIX: REMOTE OPERATION
INTRODUCTION
AMREL PD series Power Supplies have GPIB, RS-232 and Ethernet (E-Option Only) interfaces for users
to remotely operate.
REMOTE INTERFACE FUNCTIONS
The SCPI interface operations allow for constant talk and listen between systems. The PD-MC1 is able to
act as both talker and listener. The computer is able to act as a talker, listener, and controller.
LISTENER: A device capable of accepting data over an interface.
TALKER: A device capable of transmitting data over an interface.
CONTROLLER: A device capable of specifying the talker and listener for an information
transfer.
Even though the GPIB/RS-232 control is implemented in the power supply, instructions are only enabled
when a computer is equipped with a GPIB/RS-232 interface controller card. A controller manages the
operation of the bus systems by designating which devices to send and receive data. The controller also
provides command specifications within other devices.
The PD Series supports the following IEEE-488 interface functions:
L4 - Basic Listener, Un-addressable if MTA
T6 - Basic Talker, Serial Poll, Un-addressed if MTA
SH1 - Full Source Handshake
AH1 - Full Acceptor Handshake
RL1 - Remote & Local Lockout
DC1 - Device Clear
E1 - Open Collector Driver Electronics (250kb/s max)
C0 - Non-system controller
SR1 - Service Request Function
TE0 - Omitted extended talker function
LE0 - Omitted extended listener function
PP0 - Omitted parallel poll function
DT0 - Omitted device trigger
ADDRESS SETTING FOR THE REMOTE INTERFACE
The main purpose of address setting is for specifying unit identification between the instruments and
controller in a GPIB or RS-232 connection system. The Master Controller has 32 addresses (0-31) available
and is set through front panel of the controller unit. If a number higher than 31 is selected, the GPIB or the
RS-232 communication will not function. The default GPIB address value is set to 5.
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