Modbus Protocol type for Grid, Hybrid Inverter

Modbus Protocol type for Grid, Hybrid Inverter

1. Applicable for these models below

TL-X/TL-XH/TL-XH US（MIN Type）

TL3-X(MAX、MID、MAC Type)

MAX 1500V、MAX-X LV

MAX250KTL3-X HV

MOD TL3-XH

Storage(MIX Type)

Storage(SPA Type)

Storage(SPH Type)

2. register address meaning

MAX 50-100KTL3 LV /MAC/MID-X Modbus protocol type Register address meaning

Holding register:

这个是电网电压高于某个值或者低于某个值才会触发降载，与安规有关

grid voltage is higher than a certain value or lower than a certain value before degrading is triggered. It is related to safety regulations.

232 value is 1 means: disable N Line of grid.

Input register:

232, 233 Read real time reactive power

232-65525,233-48496，要把两个寄存器值合并转为16进制数：
65525-0xFFF5，48496-0xBD70，合并就是0xFFF5BD70，按有符号数转换成十进制数为-672400，单位是0.1var，所以实际无功是-67240var

232-65525, 233-48496, you need to combine the two register values and convert them into hexadecimal numbers:
65525-0xFFF5, 48496-0xBD70, the combination is 0xFFF5BD70, converted to decimal number as signed number is -672400, the unit is 0.1var, so the actual reactive power is -67240var

329 Register address

单相功率防逆流控制

-X的机器输出是三相平衡的，如果负载不平衡且使能了单相功率防逆流控制，那逆变器输出功率=三相中负载最小功率*3，所以PV逆变器输出功率会受限

-X’s machine output is three-phase balanced. If the load is unbalanced and single-phase power reverse flow control is enabled, the inverter output power = the minimum load power in the three phases * 3, so the PV inverter output power will be limited.

比如说现场逆变器输出功率足够，防逆流百分比为0，三相负载情况是:1K、2K、3K，单相防逆流控制使能的情况下逆变器输出为：1K、1K、1K；单相防逆流控制不使能的情况下逆变器输出为：2K、2K、2K（输出总功率=负载总功率）；

For example, if the inverter output power is sufficient, the anti-backflow percentage is 0, and the three-phase load is: 1K, 2K, 3K, the inverter output is: 1K, 1K, 1K when the single-phase anti-backflow control is enabled; the inverter output is: 2K, 2K, 2K when the single-phase anti-backflow control is disabled (total output power = total load power);