Introduction Does your plant use a truly open system? Does you plant rely on luck to deal with downtime? Undoubtedly your company runs the risk not to be competitive. In present times, the industrial automation world counts only with two ways for a company to become competitive: the optimization of processes using truly open systems…
Hardwareor equipment redundancy is one of the most used resources as far as failure tolerance is concerned. Higher tolerance to failures implies higher plant availability and operational safety, both aspects being important. Availability is directly related to the operating time and the business profitability, whereas operational safety refers to the preservation of assets and the…
DF81 – HSE/AS-i Controller This module of the DFI302 – Process Control and Automation Platform came out of the need for one more line of discrete equipment in the industry. The DF81 – HSE/AS-i Controller is the SMAR AS-i solution included in its SYSTEM302 – Process Control System, whose main feature is to work as…
Characteristics: Higher diagnostics availability; Better response time; Different integration methods; Reduced cabling and connections; Reduced total cost; Upgrade for existing plants. Digital networks are now widely used and chosen as the main solution for communication in the Motor Control Center (MCC) to reduce installation costs and ensure access to more information. But earlier MCC projects…
The DF63 and DF75 controllers belong to the DFI302 family – Platform of Process Control and Automation, and integrate SYSTEM302 process control system. A key element on field control distributed architecture, DFI302 present communication features that establish direct I/O access and advanced control to continuous and discrete applications. Its modular concept allows it to be…
One of the most important stages in vegetal oil production is carried out in Desolventizing – toasters or DT. The toaster is formed by a series of trays (normally between 4 to 10) where the flour to be treated is deposited. The flour is admitted by the toaster upper part and passes to the lower…
Quite often, some criteria for projects or installation details must be revised after the industrial process starts running. Even if a project was thoroughly discussed, planned, revised and approved, it is practically impossible not to perform modifications on the field when mounting the instrumentation, or even after the start up of the plant. In some…
Introduction The existence of equipment in different technologies combined with the inadequacy of installations facilitates the emission of electromagnetic energy, a fact that creates problems of elecromagnetic compatibility (EMC). See Figures 1 a and 1b, below. Figure 1 a – EMC sources Figure 1b – Signal affected by EMI effects See the…
Introduction The coexistence of equipment of different technologies and the inadequacy of the installations favors the emission of electro-magnetic energy and often causes problems of electro-magnetic compatibility. EMI is the energy that causes undesirable response to any equipment and may be generated by sparking on the motor brushes, tension circuits switching, activation of inductive and…
Introduction Pressure measurement and control is the most used process variable in the process control industry many segments. In addition, through the pressure it is possible infer a series of other process variables, like level, volume, flow and density. This article will cover the main technologies of the most important technologies used in pressure sensors,…