Picoface serial connection with a CPU module SlimLine

[Authorless]

Where can I find a connection diagram between a PicoFace in RS232 and one SlimLine, I have always used them in RS485 connection but now I need to change the connection.

[Sergio Bertana]

The RJ45 connector of the Picoface serial connection is exactly the same as that of the CPU module SlimLine. So be careful not to make the mistake they make in motions, you do not need to use a pin-to-pin cable for connection.

If you want to connect them with our cable you have to use a CBL078 cable Null Modem RJ45-RJ45, alternatively you can build the cable yourself following this scheme:

CPU SlimLine   Picoface

   4-SG --------- 4-SG
   5-RD --------- 6-TD
   6-RD --------- 5-TD
   7-CTS -------- 8-RTS
   8-RTS -------- 7-CTS

[Authorless]

I replaced the cable but the Picoface still doesn't work ...

Are there any settings for which the Picoface does not communicate with the 232?
Are there any tests I can do to check if it works?

[Sergio Bertana]

In the meantime, it is necessary to check the settings of the serial communication, which as reported in the FB HMIAInOnePicoface they must be:

    Sp.COM:=ADR('COM0'); //COM port definition
    Sp.Baudrate:=115200; //Baudrate
    Sp.Parity:='E'; //Parity
    Sp.DataBits:=8; //Data bits
    Sp.StopBits:=1; //Stop bits
    Sp.DTRManagement:=DTR_AUTO_WO_TIMES; //DTR management
    Sp.DTRComplement:=FALSE; //DTR complement
    Sp.EchoFlush:=FALSE; //Received echo flush

Pay attention to the product code, on all models there are both the serial RJ45 connector and the connector for the expansion bus, but only the model whose code ends with 100 (full version) can work connected in serial. Since it may seem strange I explain the differences.

SlimLine Picoface HMI (Basic version): It connects to the CPU module via expansion bus (its default address is 15), define Sp.COM:=ADR(‘PCOM15.1’). The RJ45 connector allows you to add a serial port to the system that can be used by FB SysSerialPort setting xxx.COM:=(‘PCOM15.0’).

SlimLine Picoface HMI (Full version): It connects to the CPU module via serial RS232 / RS485, define Sp.COM:=ADR(‘COMx’) according to the port used on the CPU module for the connection.

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