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m340 Troubleshooting Guide

121 views  December 25, 2018

Goals and Symptoms

 

How to interpret the front panel lights when diagnosing problems with the M340.

 

 

Causes and Fixes

 

Modicon M340 Processor Troubleshooting

 

  • The Modicon M340 Programmable Automation Controller is a Mid-range automation system providing small size, yet powerful 32-bit processor for demanding OEM machine and industrial process applications. It is programmed using our cross-platform IEC 61131-3 application development software, Unity Pro (v3.0 or higher). The front panel has a series of LEDs that indicate the status of the M340 processor, SD Memory Card, and system communications.

     

    The Modicon M340 is available in the following models.

     

    M340 Processors

     


    BMXP341000 Standard Level 1, 2MB RAM, USB port,

  •  

              • 1-communication port: ModBus/Serial, includes 8MB memory card
    BMXP342000 Advanced Level 2 (Performance) for Modicon M340 PLC
          • 1 USB Port for programming
            1 slot for a memory SD-card
            1 communication port: serial link
            Shipped with 1 standard memory SD-card

    BMXP342010 Advanced Level 2, 4MB RAM, USB port,
              • 2-communication ports: ModBus/Serial and CANopen master includes 8MB memory card.

    BMXP342020 Advanced Level 2, 4MB RAM, USB port,
              • 2-communication ports: ModBus/Serial and Ethernet-ModBus/TCP, includes 8MB memory card

    BMXP342030 Advanced Level 2, 4MB RAM, USB port,
              • 2-communication ports: Ethernet-ModBus/TCP and CANopen master includes 8MB memory card.
     

    Processor Status Displays

    Introduction

    There are several LEDs available on the front panel of each processor, enabling
    rapid diagnosis of the PLC status.

    These LEDs provide information on:


    · PLC functional status
    · The memory card status
    · Communication with the I/O modules
    · Modbus Serial communication
    · Communication on the CANopen network
    · Communication on the Ethernet network

    Illustration

    The following diagrams shows the physical location of the LEDs on the front panel of the BMX P34 processors:

    BMX P34 1000/2000 Processors LEDs

        •  
    BMX P34 2020, BMX 2030/20302 Processors 

    Display differences between version 1 and version 2 of the

    BMX P34 20x0x module.

     

     

    LED Indications

     

    Ethernet LED



     

  •  

Legacy KB System (APS) Data: RESL200598 V1.0, Originally authored by MiOB on 11/26/2009, Last Edited by MiOB on 11/26/2009
Related ranges: Modicon M340.
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