High data usage with "data to server" service

Networking Solutions
1

When enabling the “data to server” service, I get high data usage.

My setup:

I get variables from devices using Modbus TCP.
This data is sent every 5 minutes through MQTT to AWS-IoT Core.

Modbus settings:

  • Timeout: 5 sec
  • Always reconnect: on
  • Frequency: Period
  • Delay: 0 sec
  • Period: 300 sec
  • Request: 20 (mostly Bools)
  • Store on change only

Data to server settings:

  • Server type: MQTT
  • Timer: Period
  • Period: 300 sec
  • Retry: off
  • Format: JSON
  • Empty value: N/A
  • Encoder: None

Server config

  • Type: MQTT
  • Keepalive: 300 sec
  • QoS: 0
  • Enable secure connection: on
  • TLS type: certificate

Data input

  • type: Modbus
  • Segment count: 50
  • Format: Json
  • Empty value: N/A
  • Delimiter: ,

What I expect:

Worst case, I send 20 values every 5 minutes. This is around 200 B * 20 = 4000 B per 5 minutes. So I expect around 1.5 MB a day. (Without any overhead)

What I get:

When looking in the analytics, I see the following: sent: 112.05 MB and received: 236.6 MB. Per day.

If I turn off the “data to server” service, I see the following: sent: 2.51 Mb and received: 670.34 KB. Per day

What have I set up wrong that I get such high data usage?

3

Greetings, @Wouter1602 ,

Welcome to Teltonika Community!

Could you please clarify the device model and firmware version that you are using? This will help me to investigate further.

I look forward to your reply,

Warm regards,
V.

4

I’ve got the TRB140 with version TRB1_R_00.07.19.4

I see that there is a new version of the firmware. I will update to TRB1_R_00.07.20.3.

5

Greetings,

Thank you for your swift response.

Please let me know whether the firmware update has any effect on the issue. Additionally, if you require further assistance, we will need more sensitive information for troubleshooting purposes, such as the troubleshoot file, which may contain passwords, public IP addresses, serial numbers, and similar data.

To help protect this information, we have sent you a form to the email address registered with your forum account. In the Ticket ID field of the form, please enter the ID of this thread, which is 17703 .

If you need additional assistance, please complete the form and let me know in this topic.

Thank you,
V.