Even though the Siemens S7-200 controller, introduced in 1996, is gradually being replaced by its successor, the S7-1200, it is still found in many industrial plants spanning several decades. Therefore, this type of controller can also be integrated into the ENLYZE platform via one of the existing PPI connections, allowing for the extraction of production plant process data.

To extract data from this controller, a list of existing process variables is also required. Unlike the succeeding generation, it is not possible to directly retrieve this variable list from an S7-200 controller. However, ENLYZE provides several options for accessing this variable list, such as:

• Analyzing a STEP 7-Micro/WIN project file, if you have access to the plant's programming.

• Retrieving the variable list from a connected Siemens SIMATIC HMI operator panel.

Required Information:

• Manufacturer of the plant

• Photo of the control cabinet with the S7-200 controller

• If available: Bus address of the controller and a free bus address (for the ENLYZE SPARK). Alternatively, ENLYZE can determine this information during an on-site visit.

Technologies Used:

• Classic S7 protocol (RFC1006)