ess:ess_mode_2_and_3
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ess:ess_mode_2_and_3 [2020-05-03 22:41] – [ESS mode 2 and 3] mvader | ess:ess_mode_2_and_3 [2020-07-09 14:32] – [3.2 Using ModbusTCP] iburger | ||
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Note that this settings has a higher priority than the //Grid power setpoint//. | Note that this settings has a higher priority than the //Grid power setpoint//. | ||
+ | === d) Maximum inverter power - Modbus-TCP register 2704 === | ||
+ | * -1: No limit | ||
+ | * Any positive number: Maximum power in Watt that the Multi will feed to the loads. | ||
+ | |||
+ | === e) DVCC maximum system charge current - Modbus-TCP register 2705 === | ||
+ | * -1: No limit. Solar Chargers and the Multi will charge to their full capacity or individual configurd limits. | ||
+ | * Any positive number: Maximum combined current in Ampere for battery charging. This limits the solar chargers and the multi, and takes loads into account. Solar chargers take priority over the Multi. | ||
+ | |||
+ | === f) Maximum system grid feed-in - Modbus-TCP register 2706 === | ||
+ | * -1: No limit. If feeding in excess PV is enabled, all of it will be fed in. See registers 2707 and 2708 below. | ||
+ | * Any positive number: Maximum power in 100 Watt units to feed into the grid. | ||
+ | |||
+ | === g) Feed excess DC-coupled PV into the grid - Modbus-TCP register 2707 === | ||
+ | * 0: Excess DC-coupled PV is not fed into the grid. | ||
+ | * 1: Excess DC-coupled PV is fed into the grid | ||
+ | |||
+ | === h) Feed excess AC-coupled PV into the grid - Modbus-TCP register 2708 === | ||
+ | Please note that for historical reasons this register is inverted compared to 2707. | ||
+ | * 0: Excess AC-coupled PV is fed into the grid | ||
+ | * 1: Excess AC-coupled PV is not fed into the grid. | ||
+ | |||
+ | === i) Grid limiting status - Modbus-TCP register 2709 === | ||
+ | When feed-in of excess AC-coupled PV is disabled, or when a limit is set in register 2706, limiting will be active. | ||
+ | * 0: Feed-in of excess power is not limited in any way. | ||
+ | * 1: Feed-in of excess power is limited in some way, either register 2707 is set to 0, or register 2706 is set to a positive number. | ||
==== 2.2 Accessing the control points ==== | ==== 2.2 Accessing the control points ==== | ||
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For more information, | For more information, | ||
- | MQTT is available both on the local broker on the [[venus-os: | + | MQTT is available both on the local broker on the [[venus-os: |
=== C) Running your own scripts on the CCGX === | === C) Running your own scripts on the CCGX === | ||
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* com.victronenergy.settings / | * com.victronenergy.settings / | ||
* com.victronenergy.settings / | * com.victronenergy.settings / | ||
+ | * com.victronenergy.settings / | ||
+ | * com.victronenergy.settings / | ||
+ | * com.victronenergy.settings / | ||
+ | * com.victronenergy.settings / | ||
+ | * com.victronenergy.settings / | ||
+ | * com.victronenergy.hub4 / | ||
- | Note that the paths are represented as percentage, but should be used as on/off switch (0: off, | + | Note that the MaxChargePercentage and MaxDischargePercentage |
100: on). | 100: on). | ||
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* When both Charge and Feed-in is disabled, the Multi will go into Passthru. | * When both Charge and Feed-in is disabled, the Multi will go into Passthru. | ||
+ | === d) Disable overvoltage Feed-in - Modbus-TCP register 65 === | ||
+ | Overvoltage feed-in can be used to feed excess DC-tied PV into the grid. Note that DVCC needs to be enabled to properly use this feature. | ||
+ | * 0: Feed overvoltage into the grid. | ||
+ | * 1: Do not Feed overvoltage into the grid. | ||
+ | |||
+ | === e) Maximum Feed-in power due to overvoltage - Modbus-TCP register 66 to 68 === | ||
+ | When overvoltage feed-in is enabled, these registers can be used to limit how much power is fed in. To disable the limit, write a large number to the register. | ||
+ | * Register 66: Overvoltage feed-in limit for L1 | ||
+ | * Register 67: Overvoltage feed-in limit for L2 | ||
+ | * Register 68: Overvoltage feed-in limit for L3 | ||
==== 3.3 Running software on the CCGX and using DBus paths ==== | ==== 3.3 Running software on the CCGX and using DBus paths ==== | ||
ess/ess_mode_2_and_3.txt · Last modified: 2023-02-14 15:25 by mvader