Selecting a Human Machine Interface: software and hardware considerations

In the first part of this article, we looked at size, environmental conditions, materials, IP ratings and outdoor considerations when selecting a Human Machine Interface (HMI). Here, we continue to discuss other factors to consider, looking at data entry methods, touchscreen options, resolution and scaling, functionality, mounting, communications and software.

Selecting and sizing an uninterruptible power supply (UPS)

Having a continuous supply of power is imperative in the modern world. In some situations, where maintaining uninterrupted power supply is critical to the operation of a facility or associated electrical devices, an uninterruptible power supply (UPS) is an option. Here, we look at the different types of UPS and other considerations for selecting the correct unit/s

Battery types, sizes and hold-up time for Uninterrupted Power Supply (UPS) units

In the first part of this article on Uninterruptible Power Supplies (UPS), we looked at the two main types of units, rotary and static, along with what considerations need to be taken into account when selecting a suitable UPS system. Here, we continue our deep dive into UPSs, examining the run or hold-up time, battery types and sizing.

Considerations for selecting Power Factor Correction

Power Factor Correction (PFC) is one way facility and plant managers can reduce energy costs by eliminating charges for inefficient power usage. In the previous article, we looked at power and maintenance cost benefits of PFC, improving load balancing and site Power Factor, along with different types of PFC. Here, we continue the discussion as we delve into active harmonic filtering and electronic VAR control, installation considerations along with potential payback benefits.

Design considerations for Human Machine Interfaces

Deciding to purchase and install a Human Machine Interface (HMI) can be an expensive exercise if not undertaken with due diligence, so it’s important to select one that is suitable for your application. With a range of different hardware options to choose from, it can be overwhelming to know what to start looking for. Here, we look at size, environmental conditions, materials, IP ratings and outdoor considerations that you need to think about during the initial design process.

Reducing energy costs with Power Factor Correction

Large businesses and industrial operations consume large amounts of energy, making power one of the biggest costs for owners. On top of regular daily power charges, many network providers charge these businesses for the demand they place on the electricity grid. For owners and site managers looking to reduce power bills, this means it is now more important than ever to manage their site’s power consumption and importantly the Power Factor (PF). Here, we will look at the power and maintenance cost benefits of Power Factor Correction (PFC), improving load balancing and site Power Factor along with types of PFC.

Considerations when selecting a data historian

In the first part of this article, we looked at the functions of data historians, how they can help improve operations and different types of historian available. Here, we continue the discussion, taking a closer look at some of the major vendors, the licensing options and the benefits of selecting a suitable data historian system relevant to the industrial control industry.