{"id":1457,"date":"2010-10-20T11:24:01","date_gmt":"2010-10-20T03:24:01","guid":{"rendered":"http:\/\/blog.phoenixcontact.com\/marketing-sg\/?p=1457"},"modified":"2010-10-20T11:24:01","modified_gmt":"2010-10-20T03:24:01","slug":"system-cabling-not-meant-for-every-project","status":"publish","type":"post","link":"https:\/\/blog.phoenixcontact.com\/marketing-sea\/2010\/10\/system-cabling-not-meant-for-every-project\/","title":{"rendered":"System Cabling – Not meant for every project"},"content":{"rendered":"

During my last 4 years in Phoenix Contact, I attended several presentations on system cabling.\u00a0 I had since learnt that system cabling is very easy to install, it not only eliminates installation errors, more importantly, it saves times and money for the customers. Nonetheless, I will not be surprised to know that more than half us are not aware that system cabling is not intended for every project.<\/p>\n

<\/p>\n

Let me take this opportunity to share with you my findings.\u00a0 I had put together an Excel spreadsheet, see below, to exhibit some of the facts and figures that I gathered.\u00a0 Before I orientate you to the rows and columns, let us first recap the 2 current methods of wiring.<\/p>\n

The traditional method of wiring is all about connecting the individual terminal block to the coupling relay or isolator and then finally to the I\/O block in the PLC (Programmable Logic Controller), as below.<\/p>\n

<\/a>\"\"<\/a><\/p>\n

In contrast with this conventional method, the system method of wiring consists of mainly 3 components, namely the system adapter which connects directly to the I\/O block in the PLC, a pre-assembled cable and lastly, a system termination board.\u00a0 The marshaling terminal blocks are connected directly to the system termination board.\u00a0 As a result, it effectively combines both the marshaling and interface panels together.\u00a0 See below picture for further illustration.<\/p>\n

\"\"<\/a><\/p>\n

On my upcoming calculations, I will be making a comparison between these two methods of wiring.\u00a0 Also, to make it easier to understand, I will only focus on the areas as shown below and work on examples based on 32, 500, and 1,000 digital I\/O points.<\/p>\n

<\/a>\"\"<\/a><\/p>\n

And now here is the explanation on the calculation spreadsheet which I have created:<\/p>\n

ROI Calculation Worksheet:<\/strong><\/p>\n

\"\"<\/a><\/p>\n

ASSEMBLY COST:<\/strong> In this section, we will calculate the costs needed to terminate the cable(s).<\/p>\n

\u2022\tTraditional Method: Based on 32 I\/O counts, we will need to cut, strip and terminate 64 points to the I\/O block of the PLC. Over at the other end, we will terminate the 64 points to the coupling relays on the marshaling\/ interface panel.\u00a0 After which, we will connect the individual relay to the marshaling terminal block and thus bringing the total number of termination in the marshaling\/ interface panel to 192 points.<\/p>\n

\u2022\tSystem Cabling Approach: Installer simply plugs the pre-assembled cable into the I\/O block of the PLC and the termination board.<\/p>\n

COMPONENTS COST:<\/strong> In this section, we will sum up the total components cost.\u00a0 We will assume that the average cost of a terminal block is S$0.50\/each, average cost of a 2 change over contact relay is S$7.00\/each and average cost of a 32-channel termination board is S$550.00\/each.<\/p>\n

CABINET COST:<\/strong> In this section, we will assume that the average cost of a 42U cabinet is S$3,000\/each and in a single cabinet, we can install a maximum total of 200 terminal blocks and 100 coupling relays.\u00a0 If we just install the 32-channel termination boards, we can house a total of 5 boards.<\/p>\n

ROI Calculation Worksheet #1:\u00a0 Based on 32 I\/O counts<\/strong>
\n<\/strong><\/p>\n

<\/a><\/a>\"\"<\/a><\/strong><\/p>\n

ROI Calculation Worksheet #2:\u00a0 Based on 500 I\/O counts<\/strong> <\/strong><\/p>\n

\"\"<\/a><\/strong><\/p>\n

ROI Calculation Worksheet #3:\u00a0 Based on 1,000 I\/O counts<\/strong><\/p>\n

\"\"<\/a><\/p>\n

From the above examples, we can conclude that traditional method of wiring is more cost effective when the I\/O counts are less than 500.\u00a0 When the I\/O counts hit 500, customers may want to consider switching to system cabling as the price difference is merely $700 but it adds more value and innovation to their solutions.\u00a0 The cost savings will become apparent when the I\/O counts exceed 500.\u00a0 So, the next time when you decide on the design of your cabinets, you may wish to weigh your options carefully.<\/p>\n

Do write to me if you need me to put up a proposal for you!<\/p>\n

<\/p>\n

From the above examples, we can conclude that traditional method of wiring is more cost effective when the I\/O counts are less than 500.\u00a0 When the I\/O counts hit 500, customers may want to consider switching to system cabling as the price difference is merely $700 but it adds more value and innovation to their solutions.\u00a0 The cost savings will become apparent when the I\/O counts exceed 500.\u00a0 So, the next time when you decide on the design of your cabinets, you may wish to weigh your options carefully.<\/span><\/p>\n

Do write to me if you need me to put up a proposal for you!<\/span><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

During my last 4 years in Phoenix Contact, I attended several presentations on system cabling.\u00a0 I had since learnt that system cabling is very easy to install, it not only eliminates installation errors, more importantly, it saves times and money for the customers. Nonetheless, I will not be surprised to know that more than half […]<\/p>\n","protected":false},"author":54,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[184,185,696,720,755],"class_list":["post-1457","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-easy-installation","tag-easy-wiring","tag-siemens-solution","tag-solution-for-plc","tag-terminal-blocks"],"yoast_head":"\nSystem Cabling - Not meant for every project | Southeast Asia<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blog.phoenixcontact.com\/marketing-sea\/2010\/10\/system-cabling-not-meant-for-every-project\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"System Cabling - Not meant for every project | Southeast Asia\" \/>\n<meta property=\"og:description\" content=\"During my last 4 years in Phoenix Contact, I attended several presentations on system cabling.\u00a0 I had since learnt that system cabling is very easy to install, it not only eliminates installation errors, more importantly, it saves times and money for the customers. 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