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NN_144621844-Participant
4-Participant
January 14, 2026
Solved

MQTT and Kepware server

  • January 14, 2026
  • 1 reply
  • 73 views

At the moment I have a small problem when getting the data from MQTT.

I understood that Kepware can get the message from MQTT based on the JSON format, but when that format is not in the JSON, what should I do? 

For example, If my MQTT has a topic is "homeassistant/binary_sensor/IPC1" and the message of the topic is a string like 99-99-99-99 (not in the JSON format), how can I get the string 99-99-99-99 in Kepware? Any ideas?

here is the picture for more understanding of my situation

NN_14462184_0-1768363170944.png

 

Best answer by MKhatri

Greeting!!

You’re right that Kepware’s MQTT Client driver is designed to parse JSON payloads into tags. But if the payload isn’t JSON (e.g., a plain string like 99-99-99-99),
you can still read it verbatim in a tag by using the driver’s special #Payload selector


Channel

Driver: MQTT Client
Configure the broker (host, port, TLS, credentials) as usual.

 

Device

Add a device under that channel (defaults are fine).

 

Tag

Add a new static tag:

Name: IPC1_RawPayload (any name you like)
Address: homeassistant/binary_sensor/IPC1#Payload
Data Type: String 

Regards,
Mohit

1 reply

M
MKhatri15-MoonstoneAnswer
15-Moonstone
January 28, 2026

Greeting!!

You’re right that Kepware’s MQTT Client driver is designed to parse JSON payloads into tags. But if the payload isn’t JSON (e.g., a plain string like 99-99-99-99),
you can still read it verbatim in a tag by using the driver’s special #Payload selector


Channel

Driver: MQTT Client
Configure the broker (host, port, TLS, credentials) as usual.

 

Device

Add a device under that channel (defaults are fine).

 

Tag

Add a new static tag:

Name: IPC1_RawPayload (any name you like)
Address: homeassistant/binary_sensor/IPC1#Payload
Data Type: String 

Regards,
Mohit

    N
    NN_144621844-ParticipantAuthor
    4-Participant
    January 29, 2026

    Thank you, sir. This is what I am looking for. 

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