Mitsubishi Melsec PLC Programmable Controller can be interfaced or communicated with a PC running Medoc Ladder ,
programming software with different cables which Each module I / O pin uses a different port and socket assignment.
No most PLC of Mitsubishi can be interfaced(or communicated) directly to a PC which used programming.
Signal level of the CPU, a serial RS232 are not compatible and must be converted to a SC-02N, or SC-05-converter. The serial pinout of the converter to a PC is used in this diagram below.
PC Serial port to Mitsubishi PLC adaptor Cable series SC-02N/SC-05.
So,If you have more than one serial port is required, a series about a MELSEC PLC, the AJ71C24 , AJ71C21 modules for serial interfacing can be connected to the system.
These modules provide serial RS232-compatible port which no conversion is necessary signals, the modules with a computer. Both modules are interfaced with a DB25 connector. You can review and take it the cable layout for both modules is given below.
Computer Serial Port to Mitsubishi PLC series AJ71C24 serial programming cable
For PLC series A1SJ71C24-R2 ,you can also be used to connect between PC and controller in a Mitsu PLC series for MELSEC . Here plug-in module contains 2 serial ports, which each with DB9(PC’s Comm port Connector) . Pinout and wiring diagram of cable is basically identical with the RS-232 null-modem cable loop handshaking ,Could you see picture below.
PC to Mitsubishi A1SJ71C24-R2 serial programming cable
If you have more PLC controller series of Mitsu ,I would like to take one Cable layout diagram which this series most implement in factory ,Picture for layout and pinout thus as below.
Computer Connected to Mitsubishi PLC AJ71C21 series for serial programming cable
