User Manual of EM760 High-Performance Inverter Once the set frequency (F00.07) is set to 50.00Hz, the above data will be valid but not be stored in EEPROM. That is, the inverter will run at 50.00Hz after change but at the frequency before change ifpowered on again. 10.3.3.6 0x10: function code used to write multiple registers or commands In the remote terminal unit, this function code is used to write consecutive register blocks (1 to 16 registers). The value requested to be written is described in the request data field. The data of each register is divided into two bytes. In the normal response, the function code, starting address and number of registers written will be returned.
● Request PDU N* = number of registers ● Response PDU ● Error PDU Below is an example ofa request to write 00 01 and 00 03 into two registers starting from F03.00 (i.e. setting the Y1 and Y2 output terminal function):
261 Request Respond Domain name (0x) Domain name (normal) (0x) Function 41 Function 41 Register address Hi 00 Register address Hi 00 Register address Lo 07 Register address Lo 07 Register value Hi 13 Register value Hi 13 Register value Lo 88 Register value Lo 88 Function code 1 byte 0x10 Starting Address 2 bytes 0x0000~0xFFFF Number of registers 2 bytes 1~16 Number of bytes 1 byte 2×N* Register value N*×2 bytes Function code 1 byte 0x10 Starting Address 2 bytes 0x0000~0xFFFF Number of registers 2 bytes 1~16 Error code 1 byte 0x90 Exception code 1 byte See Table 10-4