In this lesson we are going to discuss two functions that may be accessible in the property selections of your CPU. Those functions are test mode and process mode. These functions allow you to test your program in different modes. The default mode, which is test mode, allows you to test your program without restriction. However, process mode applies a maximum cycle time restriction which prevents the CPU from going to stop mode when the cycle time exceeds the set maximum. Lets’ open this lesson and see the difference between these two testing modes.
For several lessons now, we have been discussing different options for modifying input and output values during CPU scan cycles. In this lesson, we are going to show you how to modify the values of Timers, Counters, and memory bits. We will demonstrate why timer and counter values should use the ...
This lesson is a continuation in our series of instruction on how to modify the values for inputs, outputs, timers and such during run-time of your PLC program. This lesson will offer instruction on how to modify the values for bytes, words, and double words. The process to modify these data type...
This lesson continues the discussion on about modifying the values of various datatypes in a watch table. This lesson will discuss the different types of permissible values for the different datatypes that you may encounter within the watch table. We indicate to you how to pull up a helpful menu ...
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