[Reseting the keypad?]

Its OK I worked it out myself. Utilities/ HMI/ Refresh HMI Display. 

[Reseting the keypad?]

G'day,

I was wondering if it was possible to reset the keypad back to a display automatically.

If someone say accidently presses  a variable numeric button and brings up the keypad  but doesnt hit enter I would like to have the keypad screen reset back to the last display automaitcally after a set time.

Is this possible?

 

 

[Bit to Num Vector problems]

I just realised what it is I had done.

 

1.  What is the length (C value)?

 

I had an MI selected not a #.

 

Thanks.

[Bit to Num Vector problems]

G'day,

I have a problem where I cant get a 'Bit to Num' vector to work. I set up the MB's and the MI destination but I get zero in the destination MI. The OPLC is a V570.

 

[Clear Trend Data]

How do you link a bit to a curve in a trend. ???

[Trend data storage]

G'day all,

I would like to know a couple of things. Firstly I have set up a Trend graph on an HMI screen on a V570 OPLC. I have set up four different curves and the trendand it all seems to be working good. What I would like to know is where does the data for the trend get stored on the OPLC. Also how do you clear the old data.

Thanks.

The Sparky

[Analog I/O]

You should have no problem running a 4-20 mA signal 300 meters- the voltage drop will be very small and you can ignore it. The problem may by in the other PLC you are connecting to. If the 4-20 input on that PLC is isolated, it will work. Unitronics connects the negative of the analog inputs to the power supply negative (non-isolated), so if your other PLC is non-isolated the signal will end there. You will probably need a loop isolator between the two.

Joe T.

You were saying that unitronics dont have an isolated analog input. The specs on the v200-18-e3xb snap in i/o say that it has 4 isolated analog inputs, is this ok?

[Analog I/O]

I have an Vision 570 OPLC, an Allen Bradely micrologix PLC and 1 pressure transducer 4-20mA. Can I wire this transducer to the anlaog input of both plc's and how?

[Analog I/O]

I need to run a signal from a pressure transducer ( 4-20mA ) over a 300m distance before it gets to the analog input on the OPLC. Is this distance too long?

At the moment the transducer supplys an input for a different PLC which is located near the transducer. Can I parallel off this input and run the signal to my V570-57-T20B 300m away ?

If its a matter of using the right size cable then what size would suite ?