Micro 1400 and DNP3

Critt

Member
Join Date
Apr 2006
Location
Ontario
Posts
153
Hello and thanks for the help in the past.

I am using an AB Micrologic 1400 Series B to modbus message a solar inverter for status, amps, volts etc. (Modbus Master - Channel 0)
We are then sending this information to the hydro utility so they can then view and shut down the inverter if required. (DNP3 Slave - Channel 2)
This is usually done by the utility but in this case the local utility doesn't have a programmer so they asked us to help.

So the communication between the Inverter and the PLC is working and I can see data in our registers. I have also verifed with the help of the hydro utility that they have estiblished a connection to our device and can see traffic on the DNP3 layer.
I need to take the data that I have from the inverter and send it to hydro. (Currently stored in N20:0 length 40).

Hydro Information:
All points are class 1, and analog values are 16 bit. Hydro addresses are AI001 to AI008. I think this goes into the DNP3 slave configuration but am not sure how this works. I have been reading the manual but still am unsure. I called Rockwell tech support who where less than helpful telling me since I didn't have any analog inputs connected I can't send out analog data.... (I think he was confused!!)

Do I setup the DNP3 slave configuration and then just move or copy the data from one register to another?
Thanks....
 
On the DNP layer , what devices local to your PLC are they polling from the Master Scada station ? Is this by chance a Wilmore Inverter ?
 
the DNP3 is connected serial channel 2 on the 1400 and connect to the serial port of a Digi Connect Wan VPN cell. from there the hydro utility can see the device...

The Master SCADA station is just looking for amps, volts, KW and KVAR (3 phases)
 
I haven't used DNP3 on the MicroLogix 1400 but it looks to me like you just need to point the DNP3 Object File at a MicroLogix Data File.

In the DNP3 Slave configuration menu, place into the "Analog Input (16bits) Data File" field the number of an Integer data file in the MicroLogix. For the sake of argument let's say it's "21" for N21.

Make N21 eight elements long, and copy N20:0 through N20:7 into it using a COP instruction.
 
Been doing some reading and thats what I think... just figuring out how to set the class 1 for the AI...
 

Similar Topics

Hi! Last few I've been trying to send message from MicroLogix 1400 to Micro 850. Unfortunately every time I failed :banghead:. Did someone tried...
Replies
6
Views
3,189
Hello, There was a mix up in information on some redeployed equipment and two of the micro 1400's that came in were hooked to 120v when they...
Replies
9
Views
1,954
I am trying to exchange data (N registers) to and from a Control Logix PLC. I am programming the messages in the Control Logix program, to...
Replies
7
Views
2,165
Does the 1100 only have 1 high speed counter, but it can have multiple inputs? And so then the 1400 has 6 HSC and you have a choice of multiple...
Replies
1
Views
1,716
Error: "Program in processor has changed causing offline state. Do you want to upload?" RSLogix500 V8.10 Micrologix 1400 Customer wants to add...
Replies
8
Views
2,287
Back
Top Bottom