Blog Archives

The Importance of Health and Safety Checks in Manufacturing and Engineering

In any workplace, health and safety should always be the top priority. Regardless of whether your facility is automated, health and safety should be paramount. The fact is that manufacturing and engineering industries have the most workplace accidents each year.

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Posted in Guest Posts, Safety, Training

Ladder Logic 207: Interrupts and Periodic Tasks

Today’s post is in response to Darko’s comment on my Ladder Logic 206: Scanning post. He mentioned that readers might want to learn a little bit about interrupts. It can be difficult to discuss this subject generically since different manufacturers

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Posted in Software & Programming

The Importance Of Machine Safety And Hiring A PLC Programming Specialist

Today’s article is a guest post from Automation Solutions, a Melbourne, Australia-based company. If you would like to post an article on this site, let me know! The Importance Of Machine Safety And Hiring A PLC Programming Specialist. Automated production

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Posted in Controls Design, Guest Posts, Safety

Safety PLCs

As safety systems become more and more complex (primarily because of the influence of European safety standards), the cost-effectiveness of safety PLCs has improved. I first noticed Safety PLCs being used only about five or six years ago, though according

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Posted in Applications, Controllers, Controls Design, Safety, Vendors and Manufacturers

Emergency Stops and Guard Circuits

Before the implementation of safety standards as defined in the machinery directive and OSHA the single channel circuit on the left was often used for most machines regardless of the hazard level. In the 1990s several events led to the

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Posted in Automation Concepts, Controls Design, Safety

CE Marking and the Machinery Directive

Last week I covered some of the US safety standards that apply to to machine building. As Tony mentioned in his comment on the subject, not all machines stay in the USA. This week I am going to discuss European

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Posted in Controls Design, Machine Design, Safety

Safety Standards

When designing machinery for automated processes, one of the most important factors to consider is the safety of the personnel who will be using the equipment. Of secondary importance is the protection of the machinery itself. Due to the movement

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Posted in Safety

Intrinsic Safety

When using control devices in hazardous areas such as explosive or flammable atmospheres special care must be taken to reduce or eliminate the possibility of heat or an electrical arc or spark causing damage to personnel or equipment. Because of

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Posted in Hardware, Safety, Sensors

Safety and Safety Analysis

The picture above is a manually operated station where an operator places two metal parts into a fixture. When the second item is placed a sensor activates a press mechanism and the two pieces are pressed together. When evaluating an

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Posted in Safety

Safety Classifications

I have spent the last few days working on a fairly elaborate safety system that involves linking and unlinking safety zones. Usually I have used on machine as a “master” and the the other a “slave” or sub-zone, but this

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Posted in Safety
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