Configuration

General

The basic settings for the Server extension are specified in the General tab.

Runtimes

• Establish a connection to a device via ADS.

Timeout

• Specifies how long an attempt is made to establish a connection or a read request is performed before a timeout occurs.

Support incomplete writing operations by reading before writing

• Was required for older TwinCAT versions < 4024.17. With newer TwinCAT versions, disabling can lead to better performance.

Maximum timeout for runtime status determination (Advanced settings)

• A configured runtime is considered unavailable if a request takes longer than this period of time.

Interval of runtime status determination (advanced settings)

• The status of each configured runtime is checked at regular intervals.

Ignored PLC attributes (advanced settings)

• Attribute pragmas are added to the JSON schema. The attributes configured here are hidden.

Visible runtime ports (advanced settings)

• Target systems can have many ADS ports. Most of them are rarely used in HMI projects.

Limiting the response size of ADS requests (Advanced settings)

• The PLC task is blocked for each request. If the request is too large, the PLC cycle time may be exceeded.

Limitation of the number of ADS requests that can be bundled in a sum request (Advanced settings)

• The PLC task is blocked for each request. If a sum request contains too many requests, the PLC cycle time may be exceeded.

Limiting the number of ADS handles created with a sum request (Advanced settings)

• The TwinCAT handle buffer is not increased during a sum request. Creating too many ADS handles in a single sum request leads to errors if the TwinCAT handle buffer is full.