Please refer to http://mango.serotoninsoftware.com/forum/posts/list/878.page#3948 .

Hello Skiv71,

You are not sharing much to follow mango users to help you; I've been using Mango to talk to a host of devices and IOs via Modbus Serial and Modbus TCP.
I've spent many days trying to figure out how to get Mango working correctly.

If you could share a bit more detail, I might be able to put you in the right course.

Best,

Joohwan

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

Hello oja,

Again thanks!!

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.html

A 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,

Thanks oja.
I will give it another shot at my configuration....

joohwan

Hello jkyner,

Can you be more specific on the following post you made, please?
I've been trying to put my power meter (connected to Mango via Modbus serial) on our LAN using Moxa 5230 without much success.

What data source should I use to configure/connect to the Moxa 5230?
And what "operation mode" should I choose for Moxa 5230 for Mango to connect?

TIA,

joohwan

@jkyner said:

I should have said Mango works fine with a Lantronix Intellibox Modbus Gateway with RTU slaves but also works fine with the Moxa 5130 (a basic Ethernet/RS485 SDA that is not Modbus-aware) for those Modbus slaves that can handle the 6-byte Modbus TCP-RTU header forwarded over RS485.

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

@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 others

SSA

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.

@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$).