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sprinkler jim

Need some help with a changing a Modicon to Siemens LOGO

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Hey guys need some help changing a Modicon TSX Nano to a newer compariable PLC. The Siemens LOGO seems to fit the bill. Attached is the circuit drawing and its for a landscape irrigation pumping system. If anybody can help, please email me. Thanks Jim

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ok no help or better ideas? anything? I would pay for your time. Jim

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what is it that you need help with? selecting substitute PLC? mabe also programming?

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Panic, both, i need install a new plc to replace the Tsx Nano and programming it the same. Does the wiring diagram help at all? Jim

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yes, that is enough to replicate connections to some other device. but it does nothing to explain underlying functionality (program logic).

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ok this plc tells the motor to run or not based on the A-O-H (5), pressure switch (0)and flow sensor (1)are closed . The thermal sensor (3) would shut pump down until reset. how would that be written so the plc understands?

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any reason you don't want to sick with same controller and just duplicate program?

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