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Version: 5.1.1.0

S7 Writer

To use the S7 writer, only the S7 environment entry and the message type have to be configured in the channel directly:

S7 environment entry​

A valid S7 environment entry must be selected. The configuration of the environment entry itself is described in the chapter above.

Message type​

A S7 message type has to be selected. Only S7 message types are listed. How to create an S7 message type is described in the chapter above.

The rest of the properties is passed through parameters during the call of the channel:

DATABLOCK​

A data block is a unit in the PLC, which contains data. In the field, the id of the data block must be configured. The id is a positive integer.

OFFSET​

DATE: Message which contains the data that should be written to the PLC. The message has to be in the format of the configured message type. The writer tries to optimize the amount of write-operations that are executed against the PLC. It searches for adjacent s7-fields that can be written in one operation. If gaps exist in the S7-memory between the provided data fields, different write operation are executed so that only change the specified values. Gaps (in the s7-memory) between the data are left unchanged.