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Help needed - Configuring Modbus/RS485 Data Source
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@craig said:
what kind of meter is it? see if the manufacturer has software meant to work with the meter, and if you can get it to work then you know the comms are good, and then proceed to getting it to work with mango
It's one from DENT and I do not have their software to test the configuration and connection. (It's 250$).
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@SSA said:
Hello,
Joohan if you are able to see a Com port in Mango=> data sources => Modbus serial properties; it means 99% that mango is working properly .Are you sure you define correct serial parameters : baudrate,
data bits ... on both side ( RS232 and RS485)
?For me it 's not possible to use only a cable between RS232 and RS485>>
you need a converter like : http://www.moxa.com/product/Transio_A5253.htm
or othersSSA
I made sure and double checked many times that we have all the serial parameters configured correctly - both Mango and the Meter :-<.
Yes, I've done some googling and read up on the RS485 and am considering purchasing a converter you mentioned.
Thanks.
Joohwan.
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Hello all,
Thanks and I got my power meter configured and working properly with a RS485 to RS232 converter in the middle and creating Modbus Serial data source.
While troubling shooting my Mango configuration, I came across several posts that recommended using Serial device servers such as http://www.moxa.com/product/NPort_5200A.htm.
Has anyone successfully configured Modbus devices using the above-mentioned converters/gateways?
What type of Mango data source is used - Modbus IP or Modbus Serial?TIA,
Joohwan
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When you are using some ethernet/gprs to RS232/RS485 converter, you have to use ModbusIP datasource with "Encapsulated" checkbox .
This functionality provides encapsulating ModBus RTU to TCP/IP packets.
We are using it with this converters
http://www.m2marchitect.com/latest/gprs-rs232-communicator-2.0.html -
Thanks oja.
I will give it another shot at my configuration....joohwan
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Hello oja,
@oja said:
When you are using some ethernet/gprs to RS232/RS485 converter, you have to use ModbusIP datasource with "Encapsulated" checkbox .
This functionality provides encapsulating ModBus RTU to TCP/IP packets.
We are using it with this converters
http://www.m2marchitect.com/latest/gprs-rs232-communicator-2.0.htmlA quick quetion for you;
My Moxa serial to TCP gateway has several "operation mode" i.e. RealCOM, TCP Server/Client, UDP Server.
Which operation mode would be appropriate for the ModbusIP?
I figured it would be TCP Server and I can't get any data from the gateway?TIA
joohwan,
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Hello,
I think, that you have to use RealComm mode.
I found this link
http://resourcecenter.controlmicrosystems.com/pages/releaseview.action;jsessionid=C3C07218259AE57F33419908D366D07C?pageId=2491074 -
Hello oja,
Again thanks!!
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Hello all,
I am most pleased to share my successful connection of the RS485 power meter to Mango; Big thanks to those who posted answers/guides to my request for help.
I used MOXA Nport 5230 Serial device server for physical connection and created Modbus IP data source with "encapsulated" checkbox checked.
In my configuration, it was wiring issues from the power meter to NPort; 2 wire RS485 connection.
FYI, configure the COM port you are interested in to be TCP Server mode.
Best,
joohwan
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here you have same modbus rs485 units
if you have problems with conection you cen contact us at http://www.a2s.pl/en/kontakt.php and we'll help you