In this section we try to explain many basic concepts about design of control systems that are not always clear and recommend some good practices on how to make the design. There are many aspects we treat: the control panel, options for redundant architectures, design of a fail safe system, different types of logics (1oo2, 2oo2, 2oo3,…), some tips when selecting I/O modules, etc. Let us know if you are interested in a specific topic.
Availability versus Safety
This is an important point to be considered when designing a control system with a programmable logic controller. The analysis must be performed …
What is a safety PLC?
Let’s try to explain it in a simple way for non-experts. The fundamental difference with a general purpose PLC is summed …
Why range 4 – 20 mA?
Since a lot of years the use of 4-20 mA standard range has been popularized because it has many advantages …
Phase 8: Design of Control Cabinet
In this article we discuss some options about the internal layout of the control cabinet (index of design phases).
8-Design of …
Basic concepts of redundant architecture of PLC
In this article we will go over the most usual options to configure a redundant architecture. We will focus …