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Messages - cnford1

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Technical support / Re: Frequency/DI to Analog
« on: June 24, 2003, 03:11:24 PM »
Thank you for repling, the information is very useful. Unfortuneatly, one answer leads to more questions: I still have the problem of the digital input setting direction. I wanted to use the DI so that the frequency of the input would scale up or down based on  the input for direction 0/1. If the DI is 1 scale analog output up based on frequency. If DI is 0 scale analog output down based on frequency. Frequency will always be 0 to 300 but direction would change from forward 1 to reverse 0. I would want to set the Analog out to mid point for scaling up or down. Also, the microcontroller will work with rs232 comunication and not rs 485 unless I get a converter. The only problem with that is " I can't program to save my life". That is why I thought the analog out to analog in would fit my programing limitations.

Thanks again!!!

Clyde ??? ???

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Technical support / Frequency/DI to Analog
« on: June 24, 2003, 12:43:20 PM »
I am new to PLC and have purchased a T100MD888+. I would like to convert a frequency which will reference speed and a digital input which will determine direction and have it scale an analog output. The frequency will be from 0 to 300hz while the digital input will be either a logic 1 (forward) or  0 for reverse. I would like to scale the output of the analog output so I may feed that into the analog input of a microcontroller which will handle the motor output based on the incoming analog input. The microcontroller itself will not handle the frequency and DI that is why I purchased the T100MD. Also, there is a left and right side to this circuit as it will be driving motors on the left and right side of a cart. So I will have frequencies for left and right and DIs for left and right. This will need to output 2 analog signal for left and right.

Thanks in advance for any help that is offered.

Clyde

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