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About DMC

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    Hi, I am New!

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  1. Encapsulating your data into custom Data Structures will allow you to Dominate (maybe not the world, but at least your PLC)! I have recently been examining the benefits of Data Structures, particularly through a series of the IEC61131-3 Standard. I first reviewed the standard data types that virtually every PLC will support. Once I reviewed the data types I was able to then discuss the Data Structures or UDT's as a way to cluster or group native data types. I will post my blog to a link of the charts I used (provide a better visual demonstration): Please let me know if I missed anything vital here. I am in interested in knowing your thoughts on this! Thanks!
  2. InFocus LiteShow III

    We have three of these on our office network. The LiteShow III is a small box with a wired and wireless network connections, and a VGA video output. We have hooked up a LiteShow III to each of our conference room displays. Now, anyone on our network can project their laptop's screen onto any display without connecting a monitor cable. We use the displays' HDMI input to connect with dedicated conference room PCs. The LiteShow III can operate through wired networking, or using its wireless interface as a client or an access point. We have found it best to connect the LiteShow to a wired infrastructure network, and use wireless other access points to connect to the network. Unintuitively, before disabling the wireless network, it is important to set the SSID to the room name because that is what will be used to select which LiteShow on the network to connect to. We have found that it important to configure a static IP address for the LiteShow. While it has a DHCP client, it only seems to look for an address at startup. After we had an extended power outage, when the liteshows booted before the DHCP server, they took a default address and never connected to DHCP. We found several advantages using the Infocus LiteShow III, as well as some drawbacks as well....I made a list of both these pros and cons on my blog. Here is a link for further input if you need it:
  3. S7-200 Pros and Cons

    In response to your post on s7-1200, If you find yourself working with Analog IO on the Siemens S7-1200 for the first time, you may wonder how and where to start as I did. I came up with a few basic tips for others working with Analog IO on this PLC platform. I was mainly focusing on implementing 4-20mA inputs and outputs, but the concepts should apply to other signal types as well. Here is a link to the blog with my function blocks and configurations: Hope this is helpful!