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rolandrrr asked

How often can you read and write with ESS Mode 3?

When communicating with Cerbo GX (and a Multiplus behind it) over Modbus TCP, how often can you read and write things?

Reading: You could read a certain value very often with Modbus TCP, but how often are these values updated? For that I mean any power related values (voltage, amp, power)
When you use the GX screens it typically updates every second, but it could be faster than that?


Writing the grid setpoint in ESS mode 3, how often can you change it?
In the description I see a limitation of 400W increase per second for Grid compliance.
However, as my Victron system is working now, when a 2000W load switches on, it doesn't take 5 seconds to extend that to the grid.

Next to that, powering down doesn't have to go down with 400W per second, but can be done a lot faster.

But if you implement such a control loop, should it run at every second, or can the control loop run at a shorter interval?


ESSModbus TCP
2 |3000

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