Author Topic: DM430E with MBS 1250  (Read 549 times)

Offline PetrHSC

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DM430E with MBS 1250
« on: January 17, 2025, 02:14:05 AM »
Hi Team,

I'm fairly new in PLUS+1 and whole this field. So sorry if this is a stupid question...

I have DM430 and trying to do a simple reading off the MBS 1250 on the display gauge.

Hardware:
1x DM430E-0-0-1-0
1x MBS 1250 0-250bar (063G1422)

I'm using a Functional blocks for MBS 1250 connected like this:
Input = Pin 6 (DigIn/AnIn) set up as per MBS manual:
n/a Bias
n/a Range
3000 DigThresHigh
2000 DigThresLow

Pin 8 = DigIn/AnIn using as 5V supply Pin 8-Snsr_Pwr

First question:
Can I use Pin 8 DigIn/An as my "Snsr_Pwr"? I saw there is a version of DM430 (DM430E-2-0-0-0) which is already having pin 8 define as Snsr_Pwr. Looking inside the program for this pin and comparing Pin.08_DigIn/AnIn and Pin.08_Snsr_Pwr, both have Voltage in it.

Offline oiltronic

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Re: DM430E with MBS 1250
« Reply #1 on: January 19, 2025, 05:26:35 AM »
According to the DM430E datasheet you need the DM430E-2-x-x-x to get the 5V on pin 8.  Since you don't have that, and since you are using a ratiometric 0-5V sensor, your options are:
  • Switch to the DM430E-2-0-1-0,
  • use a different sensor that takes 8-30V and outputs 0-5V, or one that takes 12-30V and outputs 0-10V, or
  • get a separate 5VDC power supply.

Offline PetrHSC

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Re: DM430E with MBS 1250
« Reply #2 on: January 20, 2025, 05:18:40 AM »
Yes, I went through datasheet as well and found it there. But still, always good to confirming with someone with more experiences.

Got 5Vdc separate supply for now, and it works all good.

Thanks, oiltronic. Much appreciated.