MATRIX TECHNOLOGY INC.
8
(3) Data bit: 8, stop bit: 1 (fixed value)
2. DB9 serial interface
The DB9 interface on the rear panel of power supply can be connected to the interface of the host.
3. Definition of interface pin
Chapter 6 SCPI Communication Protocol
6.1 Overview of SCPI command
MPS-3600LPLP series programmable DC power supply supports SCPI Communication Protocol.
SCPI is a kind of standard command used for programmable instruments, which defines a set of
command rules of communication. The command used for MPS-3600LP series power supply is
divided into two big types: basic command (IEEE-488.2 common command sets) and the command
sets designated by MPS-3600LPLP series.
SCPI commands are arranged in way of hierarchical structure of command tree. Each command
includes many alphabetic strings (mnemonic symbol), and levels are separated by colon (:). The
command on the top of command tree is called “root command” or abbreviated as “root”. One path
must be designated if visiting the next command. The structure of command tree is as follows:
In the Figure, AA means root path; BB, CC and DD are the direct sub-paths under the root path. EE,
FF and GG means the sub-paths under BB, which HH and JJ are the sub-paths under DD.
Command instruction:
1) [:] AA:CC indicates that the current root path is AA, and CC under AA will be visited.
2) [:] AA:BB:FF indicates that the current root path is AA, and FF under the sub-path BB under the
1
VCC (+3.6V)
2
RXD (receive)
3
TXD (send)
4
NC
5
GND (ground)
6
NC
7
NC
8
NC
9
NC
