Help > Modbus Steps Reference

Modbus Steps Reference

All the Modbus Steps share some configuration. Please read the following section to learn more about configuring Modbus Steps.

·          Step Configuration and Settings

-   Connection Name

-   Execution Trace and Steps Variables

The Modbus type palette provides an access to the following step types:

·          Open/Close Functions

-   Open TCP

-   Open RTU over TCP

-   Open Serial

-   Change Unit ID

-   Close

·          Standard Functions

-   Read Coils (F01)

-   Read Discrete Inputs (F02)

-   Read Holding Registers (F03)

-   Read Input Registers (F04)

-   Write Single Coil (F05)

-   Write Single Register (F06)

-   Read Exception Status (F07)

-   Write Multiple Coils (F15)

-   Write Multiple Registers (F16)

-   Mask Write Register (F22)

-   Read/Write Multiple Registers (F23)

-   Read Device Identification (F43)

·          Custom Functions

-   Custom Function (Fxx)

 

Note  Modbus Steps includes only Master Modbus Function. If you need a slave device, please contact Mesulog.

The Modbus Steps are available in TestStand™ insertion palette under Modbus.

They are also available using a right-click in Step View of a sequence, Insert Step » Modbus.

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