ISO-on-TCP
The evoVIU camera supports ISO-on-TCP in accordance with RFC1006 for direct connection to industrial controllers such as Siemens S7. Communication takes place via TSAPs (Transport Service Access Points), which uniquely identify the sender and receiver. The TSAPs are precisely defined in the camera and PLC configuration, e.g., evoVIU01 for the camera and SPS0123 for the PLC.
Instead of abstract put/get commands, the evoVIU enables direct access to data blocks (DBs) of the controller. Byte arrays are used to efficiently read or write raw data. The camera sends or receives binary data that can be processed 1:1 in data blocks – for example, as ARRAY [0..n] OF BYTE.
This approach allows for particularly high-performance, flexible, and deterministic integration of the camera into existing automation systems. Configuration is carried out via the web interface, where TSAPs, DB number, offset, and length of the data range are defined. The evoVIU can thus receive specific control commands or provide measurement results in real time – without additional communication layers.
Compared to the put/get method, this is popular and widely used in control technology because it allows the data flow to be controlled reliably.
Connection Data
Parameter | Type | Explanation | Example |
|---|---|---|---|
Address | Domain || IP - String | The destination address of the S7 controller. You will receive this information from the control engineer. | mysps.myfacory.de |
Port | Integer | Port of the ISO-On-TCP connection. Usually 102. You will receive this information from the control engineer. | 102 |
Remote_TSAP | String | The TSAP (Transport Service Access Point) of the controller - Is a type of additional unique address - Is specified by the controller and can be freely defined. You will receive this information from the control engineer. | TIA_EVOVIU_2 |
Local_TSAP | Integer | The camera's TSAP (Transport Service Access Point) – This is a type of additional unique address – It is specified by the controller and can be freely defined. You will receive this information from the control engineer. | CAM_EVOVIU_2 |
Workflow Setup
Creation of an ISO-on-TCP client component
In Workflows, go to Components and select ➕.
Search for the “ISO-on-TCP Client” component.
A new component called “ISO-on-TCP Client” will appear. This can be renamed at any time.
Enter the connection data and make sure that it has been entered correctly.
Open the context menu in your event graph by right-clicking.
Search for “Get S7 Plc”.
The “ISO-on-TCP Client” component has been successfully created and can now be used in the workflow.