IC690RFH008燃机卡件,IC690RFH008培训教程
RS-485总线电缆应使用120欧姆电阻器端接
在两端防止信号反射。当上没有设备时
网络正在传输，噪声可能被错误地解释为通信数据。为了避免这种情况，可以包括终止
带有故障保护电路（上拉和下拉电阻器）。电路当没有设备时，强制总线进入已知空闲状态正在传输。
FMBA-01 Modbus适配器模块
IC690RFH008燃机卡件FMBA-01 Modbus适配器模块是ABB驱动器，可将驱动器连接至RS-485
网络FMBA-01在驱动和RS-485网络并转换串行通信驱动器信号至RS-485信号电平。
FMBA-01具有内置总线终端和故障保护电路。可使用跳线激活终端。
适配器模块安装在电机的选件插槽中驱动器的控制板。请参阅模块的驱动器文档放置选项。兼容性
FMBA-01 Modbus适配器模块与所有符合RS-485的站点。
交货检查单FMBA-01 Modbus适配器模块的选项包
包含：•Modbus适配器模块，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.
