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1. Connection Configuration
2. Communication Settings
3. Supported Devices
4. Error Code

## Connection Configuration

- 1:1 Connection

  NOTE

  - Between Display and MP series / Σ-7C (Controller section): Ethernet connection
    Between MP series / Σ-7C (Controller section) and Stepping: MECHATROLINK connection

- 1:n Connection

  NOTE

  - Maximum number of External Devices is 64.

  - Between Display and MP series / Σ-7C (Controller section): Ethernet connection
    Between MP series / Σ-7C (Controller section) and Stepping: MECHATROLINK connection
    Between Stepping and Stepping: MECHATROLINK connection

- Connection via MPU-01

  1:1 Connection

  NOTE

  - Between Display and Main CPU: Ethernet connection
    Between MPU-01 and Stepping: MECHATROLINK connection

- 1:n Connection

  NOTE

  - Maximum number of External Devices is 64.

  - Between Display and Main CPU: Ethernet connection
    Between MPU-01 and Stepping: MECHATROLINK connection
    Stepping and Stepping: MECHATROLINK connection

- Connection via Sub CPU

  1:1 Connection

  NOTE

  - Between Display and Main CPU (or Sub CPU): Ethernet connection
    Between Sub CPU and Stepping: MECHATROLINK connection

- 1:n Connection

  NOTE

  - Maximum number of External Devices is 64.

  - Between Display and Main CPU (or Sub CPU): Ethernet connection
    Between SUB CPU and Stepping: MECHATROLINK connection
    Stepping and Stepping: MECHATROLINK connection

- Connection via Sub CPU and MPU-01

  1:1 Connection

  NOTE

  - Between Display and Main CPU: Ethernet connection
    Between MPU-01 and Stepping: MECHATROLINK connection

- 1:n Connection

  NOTE

  - Maximum number of External Devices is 64.

  - Between Display and Main CPU: Ethernet connection
    Between MPU-01 and Stepping: MECHATROLINK connection
    Stepping and Stepping: MECHATROLINK connection

## Communication Settings

Examples of communication settings of the Display and the External Device, recommended by Pro-face, are shown.

WARNING

UNINTENDED EQUIPMENT OPERATION

Read and understand the instructions in this section to ensure data is properly transferred.

## Supported Devices

Range of supported device address is shown in the table below. Please note that the actually supported range of the devices varies depending on the External Device to be used. Please check the actual range in the manual of your External Device.

WARNING

UNINTENDED EQUIPMENT OPERATION

- Do not simultaneously write to the same register from Display and External Device program.
- Do not write 16-bit word values to registers being accessed in a bitwise manner.

## Error Code

For an error code unique to External Device is refer to Error Code List.