Aspects Regarding the Configuration of a Functional Node in a Distributed Data Acquisition System, Based on PC/104 Compatible Modules

Abstract

This paper presents a practical approach for a distributed data acquisition system organized on several levels, with functions distributed in functional nodes. A field bus allows the communication between all programmable electronic modules for data acquisition (first level) and the process server (second level); the last one is a data processing and monitoring equipment which also represents the process server in a computer network with many clients. The electronic equipment for monitoring and recording analog and digital inputs (i.e. a functional node from the first level of the distributed data acquisition system) is described in detail. This equipment is organized around the PC/104 central unit and performs four main functions: acquisition, configuration, local monitoring and communication. The experimental results, corresponding to the Server application, are also presented and discussed in this paper.

Equipment for monitoring and analysis of transient electrical events in power system

“…A nonvolatile memory enables the local data storage and the information can be then sent to the higher level of the distributed data acquisition system [9].…”

“…The equipment for monitoring and analysis of transient electrical events can be easily configured as intelligent functional node (first level) in a distributed data acquisition system [9]. The RS-485 bus allows the communication between the programmable electronic modules for data acquisition (presented in [9], [10], [4]) from the first level, and the PC-07/104 process server (the second level of the distributed data acquisition system).…”

“…The RS-485 bus allows the communication between the programmable electronic modules for data acquisition (presented in [9], [10], [4]) from the first level, and the PC-07/104 process server (the second level of the distributed data acquisition system). PC-07/104 is an IBM-PC compatible equipment for data processing, monitoring and remote control; it also represents the process server in a computer network with many clients.…”

“…Causes of disturbances in power systems, power quality improvement techniques and measures used to estimate the power quality are presented in [1] and [2]. Many methods and types of equipment for power quality measurement, monitoring, analysis and diagnosis of electrical events in power systems were designed and implemented in the last years; some of them are presented in [3], [4], [5], [6], [7], [8], [9] and [10]. This paper is focused on the PC-08/104 equipment for monitoring and analysis of transient electrical events.…”