1、ATV303Modbus通讯概要允松平下面列出ATV303变频器做Modbus通讯时的要点和注意事项:、RS485口定义ATV303集成RS485串行通讯口,并驻留ModbusRTU串行通讯协议,允许其与主流上位机通讯。RS485口的物理形式是RJ45。针脚排列定义如图1所示。PinoutoftheATV303RJ45ConnectorViewfromund&meath81其中4和5是数据发送/接收口,也是...
PinPurposeRS485-to-TTL pinColor T-568B 1B-B-Orange-White 2A+A+Orange 3GNDGNDGreen-White 4NC 5NC 6GND 7A+ 8B- Please be aware of the different RJ45 pinout colors (T-568A vs. T-568B). Module addressBMS Module IDDip1Dip2Dip3Dip4 ...
Support 1 port RS232 (RJ45 connector) or 1 port RS485/422 (5 bit terminal block) Support 1 10/100M adaptive Ethernet interface 300bps~115200bps baud rate and nonblocking communication Support Modbus TCP, Modbus RTU, Modbus ASCII, IP, ARP, DHCP, DNS protocol Slave mode support 16 TCP ...
Even that only 3 wires are needed, it is strongly recommended to use a standard UTP as a trunk cable. Even more that RJ45 is one of the recommended connectors for MODBUS RTU system. For proper operation one pair of resistors must be connected on the RS-485 balanced line: ...
RS485口的物理形式是RJ45。针脚排列定义如图1所示。PinoutoftheATV303RJ45ConnectorPinSignal123-4D1(1)5D0(1)6-7VP(2)8Common11)其中4和5是数据发送/接收口,也是Modbus通常使用的。8是GND,在做Modbusbus通讯时通常要求接上,可以提高通讯质量。7可以由变频器提供10V电源,用来外拉面板或某些型号的232/485的转换...
ConnectiontoRS485bus ConnectiontoATV303 Connectionaccessoriesshouldbeorderedseparay(pleaseconsultourcatalogues). ConnecttheRJ45cableconnectortotheATV303connector. PinoutoftheATV303RJ45Connector Viewfromunderneath 81 PinSignal 1- 2- 3- 4D1(1) 5D0(1) ...