IC690RFH008燃機卡件,IC690RFH008培訓教程
RS-485總線(xiàn)電纜應使用120歐姆電阻器端接
在兩端防止信號反射。當上沒(méi)有設備時(shí)
網(wǎng)絡(luò )正在傳輸，噪聲可能被錯誤地解釋為通信數據。為了避免這種情況，可以包括終止
帶有故障保護電路（上拉和下拉電阻器）。電路當沒(méi)有設備時(shí)，強制總線(xiàn)進(jìn)入已知空閑狀態(tài)正在傳輸。
FMBA-01 Modbus適配器模塊
IC690RFH008燃機卡件FMBA-01 Modbus適配器模塊是ABB驅動(dòng)器，可將驅動(dòng)器連接至RS-485
網(wǎng)絡(luò )FMBA-01在驅動(dòng)和RS-485網(wǎng)絡(luò )并轉換串行通信驅動(dòng)器信號至RS-485信號電平。
FMBA-01具有內置總線(xiàn)終端和故障保護電路?？墒褂锰€(xiàn)激活終端。
適配器模塊安裝在電機的選件插槽中驅動(dòng)器的控制板。請參閱模塊的驅動(dòng)器文檔放置選項。兼容性
FMBA-01 Modbus適配器模塊與所有符合RS-485的站點(diǎn)。
交貨檢查單FMBA-01 Modbus適配器模塊的選項包
包含：?Modbus適配器模塊，FMBA-01型
RS-485 bus cable should be terminated with a 120 ohm resistor
on both ends to prevent signal reflection. When no device on the
network is transmitting, noise can be falsely interpreted as
communication data. To avoid this, termination can be included
with a fail-safe circuit (pull-up and pull-down resistors). The circuit
forces the bus into a known idle state when no device is
transmitting.
The FMBA-01 Modbus Adapter module
The FMBA-01 Modbus Adapter module is an optional device for
ABB drives which enables the connection of the drive to a RS-485
network. The FMBA-01 provides galvanic isolation between the
drive and RS-485 network and converts serial communication
signals of the drive to RS-485 signal levels.
The FMBA-01 has a built-in bus termination with fail-safe circuitry.
The termination can be activated with a jumper.
The adapter module is mounted into an option slot on the motor
control board of the drive. See the drive documentation for module
placement options.Compatibility
The FMBA-01 Modbus Adapter module is compatible with all
stations that comply with RS-485.
Delivery check
The option package for the FMBA-01 Modbus Adapter module
contains:
? Modbus Adapter module, type FMBA-01
? this manual.
