DLS DLS 400A, Руководство по эксплуатации

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REMOTE CONTROL
Page 56
7. REMOTE CONTROL
The DLS 400 is controlled via the IEEE 488 (also known as the GPIB bus), or the RS–232
(serial) interface, allowing the integration of the DLS 400 into a larger test system. The
DLS 400 remote control is designed with several standards in mind:
• The GPIB physical interface follows IEEE 488.1. The functions implemented are out-
lined in Section 7.1 “IEEE 488 Interface”. The Common Commands follow IEEE
488.2.
• The Device Dependent Commands (see chapter 9) are based upon the Standard Com-
mands for Programmable Interfaces (SCPI). However, we had to create some device
dependent commands since none of the pre-defined SCPI commands apply to the
DLS 400.
• The serial port physical interface follows the EIA RS–232 standard.
The IEEE 488 and the serial interfaces are always enabled, and can be used alternatively.
The DLS 400 directs its output to the last interface from which it received data. Both inter-
faces use the same command set and produce the same results. Section 7.1 describes fea-
tures specific to the IEEE 488 interface; section 7.2 describes features specific to the RS–
232 interface. The rest of this chapter describes commands common to both interfaces.
7.1 IEEE 488 Interface
The IEEE 488.1 Interface functions supported by the DLS 400 are as follows:
SH1 Source handshake – full capability
AH1 Acceptor handshake – full capability
T5 Basic talker – serial poll, untalk on MLA
L3 Basic listener – unlisten on MTA
SR1 Service request – full
DC1 Device clear – full
C4 Respond to SRQ
E1 Open Collector drivers
RL1 Remote Local – full