User Manual of EM730 Series Inverter 8-bit data (such as 0x01). When 10-bit data needs to be transmitted in the actual situation, the transmission time is about 1.04ms (approximately 1.04167ms=10bit/9600bps). In the UART transmission, the data usually consists of a start bit, valid data (8 bits by default), check bit (optional), and a stop bit. The EM730/EM730E series inverter supports six data formats according to the Modbus-RTU combinations in communication. If F10.02=0, it means that the current data consists of one start bit + eight data bits + no check bit + one stop bit. ★ N (NONE): no parity; E (EVEN): even parity; O (ODD), odd parity.
response delay during the communication based on the Modbus protocol. In order to meet different needs, the inverter also supports communication timeout and the previous reception of valid data frames by the slave station (inverter) to next reception of As shown in Fig. 7- 30, the communication time interval △ t is defined as the period from valid data frames. If △ t is greater than the set time (depending on the function code F10.03; this 252 Function code Function code name Parameter description Unit Default setting Attribute Mailing address F10.02 Modbus data format 0: 1-8-N-1 (1 start bit + 8 data bits + 1 stop bit) 1:
1-8-E-1 (1 start bit + 8 data bits + 1 even parity check bit + 1 stop bit) 2: 1-8-O-1 (1 start bit + 8 data bits + 1 odd parity check bit + 1 stop bit) 3: 1-8-N-2 (1 start bit + 8 data bits + 2 stop bits) 4: 1-8-E-2 (1 start bit + 8 data bits + 1 even parity check bit + 2 stop bits) 5: 1-8-O-2 (1 start bit + 8 data bits + 1 odd parity check bit + 2 stop bits) 0 〇 0x0A02 Start Bit Valid Data Check Bit Stop Bit 1 7 6 5 4 3 2 1 0 N/O/E 1 Function code Function code name Parameter description Unit Default setting Attribute Mailing address F10.03 Modbus communication timeout 0.0 to 60.0; 0.0: invalid (also valid for master-slave mode) s 0.0 ● 0x0A03