By using one switch to power up the whole system at one time greatly increases what is called in-rush current. This might be especially hard on the power switch of the PLC but would be no different for the components than if you used their switches to cycle the units off and on. In-rush current can be as high as 5 to 10 times higher than what the unit uses at idle though, so the initial surge can be a VERY big load all of a sudden. Especially if your PLC has one main power switch.
As far as that goes, you should be okay so long as the PLC that you bought uses a very high quality high current power switch. I will not "preach" about the merits of turning gear off or leaving it on as there are plenty of other threads that you and others can find in the archives. Sean
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As far as that goes, you should be okay so long as the PLC that you bought uses a very high quality high current power switch. I will not "preach" about the merits of turning gear off or leaving it on as there are plenty of other threads that you and others can find in the archives. Sean
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