Baldor Modbus Plus Instrukcja Użytkownika Pobierz pdf (Strona 2)

AN00174-001 Modbus TCP Fieldbus Option for MotiFlex e100.doc

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A wide range of fieldbus modules are available (contact your local Baldor office or distributor for a

full list):

• Carrier card: OPT-MF-030

• DeviceNet: OPT-FB-001 (Anybus AB6201)

• PROFIBUS DP-V1: OPT-FB-002 (Anybus AB6200)

• EtherNet/IP: OPT-FB-004 (Anybus AB6214)

• Modbus/TCP: OPT-FB-005 (Anybus AB6213)

• PROFINET IO: OPT-FB-006 (Anybus AB6215)

Separate application notes are available on setting up these alternative Fieldbus Options.

Modbus/TCP Function Codes

The Modbus/TCP Fieldbus Option supports the following Modbus function codes:

• 1 - Read Coils

• 2 - Read Discrete Inputs

• 3 - Read holding Registers

• 4 - Read Input Registers

• 5 - Write Single Coil

• 6 - Write Single Register

• 15 - Write Multiple Coils

• 16 - Write Multiple Registers

• 23 - Read/Write Multiple Registers

• 43 - Read Device Identification

Modbus/TCP Register Implementations

The Modbus/TCP Holding (4x) Registers are mapped as follows:

Modbus Register Range Contents

0000 – 00FF hex (0 to 255 dec) Read Process Data (data written by PLC)

0100 – 01FF hex (256 to 511 dec) Write Process Data (data read by PLC)

0210 – FFFF hex (528 to 65535 dec) Application Data Instances (ADIs)

The Modbus/TCP Input (3x) Registers are mapped as follows:

Modbus Register Range Contents

0000 – 00FF hex (0 to 255 dec) Write Process Data (e.g. Input register 0 is

mapped to Modbus Register 0100 hex)

The Modbus/TCP Discrete Input (1x) Registers are mapped as follows:

Modbus Register Range Contents

0000 – 0FFF hex (0 to 4095 dec) Write Process Data (e.g. Discrete Input

hex)

The Modbus/TCP Discrete Output (0x) Registers are mapped as follows:

Modbus Register Range Contents

0000 – 0FFF hex (0 to 4095 dec) Read Process Data (e.g. Discrete Output

hex)

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