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    How do I setup the Altivar Process Drive to communicate over Modbus over Ethernet (TCP)?

    Issue:
    What basic parameters on the Altivar Process Drive do I need to I configure to establish a connection and communicate to the drive over the Embedded Modbus Ethernet protocol?

    Product Line:
    Altivar Process Drive (ATV630, ATV930, ATV650, ATV950, ATV660, ATV960, ATV680, ATV980)

    Environment:
    All serial numbers for Altivar Process Drive

    Cause:
    Need to connect to the drive and communicate over Modbus

    Resolution:

    Setting up Modbus TCP on the Drive
    EDS Files
    Basic Settings
    • Program Communication Settings:
      • [Communication] [Comm parameters] [Ethernet Embd] EtE submenu
        • [IP Mode Ether. Embd]
        • [IP address]
        • [Mask]
        • [Gateway]
      • ​​​Setting up a Modbus Address
        • [Communication] [Comm parameters] [Modbus SL] [Modbus Fieldbus]
          • ​[Modbus Address]
          • [Bd.RateModbus]
          • [Modbus Format]
          • [Modbus Timeout]​​​
        • To read/write directly to individual 4x registers you will need to set a Modbus Address in the drive. 
          • The Modbus Address should match your Unit ID on PLC (Typically that is Unit ID of 1)
        • When using the IO scanner input/output tables you will need to use a Unit ID of 255
    • Remember to Powercycle the Drive after any communication changes
    • Programming Command Settings:
      • [Complete settings] [Command and Reference]
        • ​For command speed from Network, program:
          • [Ref Freq 1 Config] Fr1 - Set to [Embedded Ethernet] Eth
          • [Ref 1B switching] rCb - Set to [Ref Freq Channel 1] Fr1
          • [Control Mode] CHCF - Set to [Not separ.] SIM
        • ​​Video: Setting an Auto/Manual or Reference Switching on the Altivar Process Drives
          • https://www.schneider-electric.com/en/faqs/FA294131/
    • Program Communication Settings (from SoMove)
      • ​​[Parameters List] [Fieldbus] [Modbus TCP/Ethernt IP]
      • Configure Drive Protocol (ATV900)
        • Ethernet Protocol - Set to Modbus TCP
    Commanding the Drive
    • Using IO Profile characteristics:
      • [Complete Settings] [Command and Reference] [Control Mode] - Set to "IO"
      • Command Word - 8501
      • 16 bit word (Bit 0, 1, 2..... 15)
      • Start/Stop must turn on bit 0 (first bit)
        • Write a 1 to start
        • Write a 0 to stop
      • Bit 1 to 15 are assignable to other drive functions like Fault Reset
      • Speed Reference
      • Speed Reference Word:
        • 8502 (Hz) and 8602 (rpm)
    • Using CIA402 (DriveCom Profile) characteristics:
      • Works with all assemblies
      • [Control Mode] to [Not separ.] or [Separate]
      • Command Word - 8501
      • No 16 bit word
      • Start/Stop
        • Drive will display nSt on top left corner.
        • A sequence of values must be written to the drive:
          • 6, 7 and 15 decimal values
          • Toggle between 7 and 15 to start and stop
      • Speed Reference
        • Speed Reference Word:
          • 8502 (Hz) and 8602 (rpm)

    Related FAQ: 
    FA316343: How do I troubleshoot an Altivar Process Drive that would not connect to a Modbus over Ethernet (Modbus TCP) network?


     

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