Integrated measurement system based on the IEEE-488 bus

The article presents a description of measurement systems from the perspective of their configuration and system components. Based on this characteristic, a measurement system based on the IEEE-488 interface is presented, highlighting its advantages and providing examples of measurement applications.

1. INTRODUCTION
The operation of modern measurement, production, or other processes related to the necessity of reading measurement data is based on data provided from sensors placed in key locations from the point of view of process control and execution. Data acquisition, transmission, and processing take place within a measurement system defined as a set of devices, organizational resources, and information processing programs used to ensure the proper operation of the production process. A characteristic feature of such a measurement system that distinguishes it from a measurement circuit is the presence in the system of a device responsible for the flow of information, referred to as a controller. Usually, this is a microprocessor controller or a computer.
The construction and configuration of a measurement system entail the way information flows and the possibility of its subsequent expansion. There are three main types of measurement system configurations: bus, loop, and star.

2. MEASUREMENT SYSTEM CONFIGURATIONS
2.1 Bus configuration
In the bus configuration, all devices of the measurement system are connected to a common data transmission line (bus). None of the devices connected to it has a privileged position, and each of them can perform the function of a device for reading measurement data as well as managing the system (controller), provided it has such a capability.
The assumption is the limitation that only one device acting as a manager can be active at a time. The purpose of such a device is to control the sending and receiving of information between devices. This involves the necessity of assigning unique addresses to all system devices, and this is done by granting permissions for transmission or reception of data, the so-called addressing for sending and receiving. (…)

IEEE-488, GPIB, measurement system, SCPI, VEE – PDF file for download