[Mikhail]

Do you mean that you can open the web application locally, but can’t access remotely?
HTTPS may require additional setup. Does HTTP work?

[Mikhail]

Try requesting 8 coils.

[Mikhail]

Hi,
It’s difficult to understand what values are expected in Communicator?

[Mikhail]

The official Modbus specifications are here http://modbus.org/specs.php
You need http://modbus.org/docs/Modbus_Application_Protocol_V1_1b3.pdf and http://modbus.org/docs/Modbus_Messaging_Implementation_Guide_V1_0b.pdf

[Mikhail]

Hi,
According to the Modbus specification, in the response
00 00 00 00 00 06 02 01 02 88 02
06 is “Number of following bytes”. You can see only 5 bytes after 06. So the response is not correct.

The correct response would be 00 00 00 00 00 05 02 01 02 88 02
I think, Simply Modbus doesn’t validate the incoming data.
Do you have any idea why the device sends incorrect Modbus packages?

[Mikhail]

Hello,
Please clarify your question.

[Mikhail]

I suppose, you should install and switch on the Chart Pro plugin. It is used by Dashboard if a chart contains more that 1 input channel.

[Mikhail]

The example of using the API.

[Mikhail]

Hi,

Find the API here. The descriptions of the methods are included in this file as comments.

[Mikhail]

Hi,

1. No. Don’t use the previous versions of Rapid SCADA. Install the actual.

2. Yes, you can.

Note: Rapid SCADA doesn’t officially support Windows XP and it is not tested on XP, but it should work most likely. The web app have to be installed manually.

[Mikhail]

Hi,

Unfortunately, the link to the image you provided doesn’t work. Can you post the correct link?

[Mikhail]

Hi,
The device sends not enough bytes: Receive (4/5). 5 bytes expected in the second part of package according to Modbus standard.
You can analyze packages using http://modbus.rapidscada.net/
If ModbusPoll can show communication protocol, let’s compare with Communicator.

[Mikhail]

Set the properties:
Action = Send command
Output channel = output channel number that you already created in Administrator to turn on/off a relay.

[Mikhail]

Hello,

Please provide the additional info:
1. Screenshot of Modbus template
2. Screenshot of the values that you receive (Device Data tab in Communicator).
3. What values you expect?

Probably, you should try different order of bytes (in Modbus template) to decode floats. For example, 2301

[Mikhail]

Hello,
Computer code is shown by commercial plugins. First of all, you need to install the plugin. If you do not use commercial plugins, you don’t need any key.

[Author]

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