ALMAR

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Posts posted by ALMAR

  5. Posted

    Gambit:

    Thanks to your reply, my Mitsubishi PLC R04CPU (Socket Client) is finally, successfully, reliably, and repeatably Socket communicating with Rockwell Automation EWEB Socket Test PC Application, which is simulating AB PLC (Socket Server).
     
    The next step is tomorrow connect the AB and Mitsubishi PLC in the same Ethernet network and confirm Socket communication transfer directly from Mitsubishi to AB PLC.  
     
    Thanks again. Indeed a true THANKSGIVING CELEBRATION! 

  6. Posted

    Per MELSEC iQ-R Ethernet_CC-Link IE Function Block Reference manual, the FB M+RCPU... Socket commands are similar to what Ladder Logic R04CPU build-in Ethernet port commands SP.SOC..., and required the same arguments-parameters to be configured or set. The FB M+RCPU commands set uses one additional parameter  to identify if these M+RCPU commands are via PLC Ethernet module or build-in PLC Ethernet port. SP.SOC commands are PLC CPU build-in Ethernet port specific; therefore, this additional parameter is not required. I am using the ladder logic SP.SOC command set. 

    The MELSEC iQ-R Ethernet_CC-Link IE Function Block Reference manual is much better written than the MELSEC iQ-R Programming Manual( Instructions, Standard Functions/Function Blocks), including additional details on how to enter the order of IP Address in the memory registers.

    I was not aware that this Function Block Reference manual existed.

    I thank you very much for forcing me to expand my search.

  10. Posted

    Looking for Socket TCP/IP communications program examples for Mitsubishi PLC iQ-R R04CPU using GX Works3, to compliment the Mitsubishi Ethernet manual Socket commands instructions.

    Unfortunately, the manual is missing real application ladder logic illustration examples of these commands. For example, the Socket Open Connection command, does not describe in what order or format to enter the IP Address.  
    For example, to enter IP Address 192.168.1.100, does the most significant octet 192 is entered or stored first in the lowest memory storage register (Big Endian format) or does the least significant octet 100 is entered or stored first in the lowest memory storage register (Little Endian format)?

    I am trying to write a simple Socket TCP/IP communications command that will write about four registers from an existing Mitsubishi PLC R04CPU (Socket Client) to an Allen Bradley PLC ControlLogix (Socket Server).

    .