dear plc friends
i am in process of learning plc programming.can any one help me to make a small program to operate one out of two pumps alternately.With first start up pump1 should come on and pump2 off.during next start pump2 on and pump1 off.inputs available are ON and OFF push buttons.I hope someone out there will respond.type of plc is siemens s7 300 or s7 200
i am in process of learning plc programming.can any one help me to make a small program to operate one out of two pumps alternately.With first start up pump1 should come on and pump2 off.during next start pump2 on and pump1 off.inputs available are ON and OFF push buttons.I hope someone out there will respond.type of plc is siemens s7 300 or s7 200