MQTT not reading messages

[Mikhail]

Hi,

Could you explain what “in the original code” means?

[alexmtzrmz]

Of course!
So I understand that the js file is a function that is being called from a bigger code where setValue() is defined
I’d like to know if it’s possible to have access to the main code

[Mikhail]

setValue is defined here. JS has a limited context, I don’t think that the main code of the driver is accessible.

[alexmtzrmz]

Hello Mikhail

I have migrated from the v5 to v6 of rapid scada, the situation here is that in v5 I was able to edit a file called MainMaster that was located in C:\SCADA\ScadaWeb

but now I checked the same directory and I cant find the file, do you know where I can find it so I can edit it?

[Mikhail]

Hello,
Please ask questions in appropriate topics. This topic is about MQTT.

[KevinVt]

Hello Mikhail,

I had setup MQTT Client in v6, and I can get data from MQTT broker, but I confused 2 questions, could you please help to check?
1, all the data I got is double, can I get data in other format? for example, the sequence number is int.
Current Data
| # | Code | Name | Value | Channel |
| 1 | .saleid | MqttReport.saleid | 10,100,001.000 | |
| 2 | .gateid | MqttReport.gateid | 10,100,001,001.000 | |
| 3 | .time | MqttReport.time | — | |
| 4 | .sequence | MqttReport.sequence | 100.000 | |

2, when use setValue(1,data.time) in js file for MqttReport.time, had error: “Error : Input string was
not in a correct format.”
I had try different format of timestamp, all got errors. How can I get correct time value?

Thanks a lot!

[Mikhail]

Hello,

1. Yes, the driver converts all MQTT data to double. You can set data format to display in channel properties. It affects web interface.

2. Convert time to number of milliseconds in JavaScipt. Then it’s possible to convert it to date and time using channel formula.

• This reply was modified 2 years, 6 months ago by Mikhail.

[KevinVt]

Hello Mikhail
Thanks a lot for your answers, another question, for some data can not convert to double, such as name, how to get their value ?

[Mikhail]

Hello,

Currently, the MQTT driver doesn’t support strings. It’s possible to implement in the future.
Strings are supported by OPC UA driver, for example.

[KevinVt]

Got it, Thanks a lot!

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