第三章单元测试
- The method of information exchange between the mechanical device of work unit and PLC device is that the leads of each solenoid valve and sensor on the mechanical device are connected to the wiring port on the device side. The I/O outgoing line of PLC is connected to the terminal of PLC side. The two terminals are interconnected by multi-core signal cables.（ ）
The wiring terminal of the wiring port on the device side adopts a three-layer terminal structure, which is divided into upper and lower parts.
The 25-pin connector cable connects the input signal of PLC, and the 15-pin connector cable connects the output signal of PLC
The basic functions of FX3U series PLC are compatible with all the functions of FX2N series, and also adopt the form of basic unit plus expansion, which can connect the input and output expansion units/modules of FX2N series.
Due to the enhancement of FX3U communication function, the PLC of YL-3 35B sorting unit can directly use the special frequency conversion communication command of PLC to RS485 communication with the frequency converter by connecting a special adapter FX3U-485ADP-MB for communication.
A:对 B:错
答案:对
A:错 B:对
A:对 B:错
A:对 B:错
A:错 B:对
