Gpib Remote Operation (Option); Introduction; Description Of The Gpib; Gpib Interface Parameters Set Up - COSINUS ESCORT 3145A Bedienungsanleitung

ESCORT 3145A / 3146A

7 GPIB Remote Operation (Option)

7.1

Introduction

This section describes how to operate the meter via GPIB interface. It
also explains the detail information of all IEEE 488.2 command sets and
Standard Commands for Programmable Instruments (SCPI) used in the
meter. The remote control operation enables the user either to manually
operate the meter via a terminal or executes a host computer program
automatically.
The IEEE-488 interface function subsets of the meter support SH1
(Source Handshake), AH1 (Acceptor Handshake), T5 (Talker), L4
(Listener), SR1 (Service Request), RL1 (Remote/Local) and DC1 (Device
Clear).
7.2

Description of the GPIB

The GPIB is a bus structure that links the meter to desktop computers and
others GPIB controlled instruments to form an automated measurement
system. GPIB can connect up to 15 devices on one contiguous bus, star or
linear bus network. Total transmission path length is 2 meters times
number of devices, whichever is less, with a maximum of 3 meters
separating any two devices. Asynchronous 8 bits parallel data transfer
using a 3-wire handshake.
One megabyte per second (maximum) over limited distances; actual data
rate depends upon the capability of the slowest device involved in the
transmission.
7.3

GPIB Interface Parameters Set up

With the optional GPIB (IEEE-488) interface installed, the meter is fully
programmable for used on the IEEE-488.1 interface bus (1978). The meter is
also designed to comply with the supplemental standard IEEE-488.2 (1987).
In order to operate the meter via a host computer or terminal, the parameters in
GPIB interface within the meter has to match the parameters in the bus
interface provided by the host or terminal.
The following procedures will guide the user to set up GPIB interface
parameters within the meter to comply GPIB interface with the host. The default
settings of the meter at factory are address 8 and talk off.
Table 7-1 indicates the GPIB interface factory settings and user selectable
communication parameters.
Cosinus Computermesstechnik GmbH • Tel. 089-665594-0 • www.cosinus.de
Seite 7-83