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Monday, June 8, 2009

http://www.bin95.com/index.htm

Programmable Logic Controller (PLC) Training&
PLC Training equipment with Lessons! & On-Line HMI SCADA and PLC Course & Free online Industrial Training Skills Assessment Tool
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What is Ladder Logic Programming? The programming language of the T1 is ‘ladder diagram’. Ladder diagram is a language which composes program using relay symbols as a base in an image similar to a hard-wired relay sequence. In the T1, in order to achieve an efficient data-processing program, ladder diagram which are combinations of relay symbols and function blocks are used. The ladder diagram program is constructed by units called ‘rung’. A rung is defined as one network which is connected each other.