Cannot use MQTT to modify Input Current Limit

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david-campbell asked Jun 22, '22

Cannot use MQTT to modify Input Current Limit

I am trying to programatically update the Input Current Limit of my Multiplus II. This can be set by logging onto the remote console of the device on 192.168.1.193 (see screen grab).

So I publish the following MQTT message to my Multiplus II:

mosquitto_pub -h 192.168.1.193  -t 'W/my_serial_here/vebus/275/Ac/ActiveIn/CurrentLimit' -m '{“value”: 10}']

(Of course my_serial_here is really the long serial number for the inverter... C0619XXXXXXX).

Then this appears in MQTT Explorer under the W/... topic. However the actual current limit on the Victron does not change.

Here is the relevant section under MQTT explorer:

I have tried both enabling and disabling the Current limit overruled by remote setting in Victron Connect.

I have also tried all these commands:

mosquitto_pub -h 192.168.1.193  -t 'W/my_serial_here/vebus/275/Ac/ActiveIn/CurrentLimit' -m '{“value”: 6.0}'
mosquitto_pub -h 192.168.1.193  -t 'W/my_serial_here/vebus/275/Ac/In/CurrentLimit' -m '{“value”: 6.0}'
mosquitto_pub -h 192.168.1.193  -t 'W/my_serial_here/vebus/275/Ac/In/1/CurrentLimit' -m '{“value”: 6.0}'
mosquitto_pub -h 192.168.1.193  -t 'W/my_serial_here/vebus/275/Ac/In/2/CurrentLimit' -m '{“value”: 6.0}'

Here is how it looks in MQTT explorer after running those commands:

But none of this changes the set value of Input Current Limit that is configured in Victron Connect or set on the remote console.

I'm stuck. Any ideas what I'm doing wrong?

MQTT

screenshot-2022-06-21-at-211729.png (99.4 KiB)

screenshot-2022-06-21-at-211850.png (43.7 KiB)

screenshot-2022-06-21-at-214210.png (66.6 KiB)

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Modifications Space

Node Red Space

Answer 1 · 2022-06-22T04:06:13Z

elvis answered · Jun 22, 2022 at 04:06 AM

That setting is locked on my system.

Either over ruled by remote is not checked or an assistant is blocking it.

Its only configurable on mine thru VEconfigure

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Answer 2 · 2022-06-22T11:04:11Z

david-campbell answered · Jun 22, 2022 at 11:04 AM

@Elvis Are you using a Multiplus II GX?

These threads seem to suggest that people are able to do this, so I'm not sure if it's a locked setting:

https://community.victronenergy.com/questions/42946/control-multiplus-ii-via-mqtt.html

https://community.victronenergy.com/questions/8545/write-mqtt-msg-to-change-current-limit.html

I'm wondering if there's anything else I'm missing?

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Answer 3 · 2022-06-23T01:51:41Z

elvis answered · Jun 23, 2022 at 01:51 AM

This is what I get when I try to modify.

Running an ESS system.

Firmware 2.90 ~14

input-current-limit.png (196.1 KiB)

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