The Siemens S7 driver supports these types of Siemens PLC and communication methods:
The Siemens S7 driver provides these tag types to support communication with Siemens S7 PLC Devices:
| Icon | Tag Type | Version | Description |
|---|---|---|---|
| Siemens S7 Ethernet channel | 1.4 | A connection to a Siemens S7 device using the TCP/IP protocol. |
| Siemens S7 MPI channel | 1.4 | A serial port connected to an S7-300 or S7-400 PLC. |
| Siemens S7 PPI channel | 1.4 | A serial port connected to an S7-200 PLC. |
| Siemens S7 Ethernet PLC Tag | 1.4 | A Siemens S7 PLC Tag connected via Ethernet. |
| Siemens S7 Serial PLC Tag | 1.4 | A Siemens S7 PLC Tag connected via a serial link (MPI or PPI). |
| Siemens S7 memory block | 1.4 | A block of data read from a Siemens S7 PLC Tag. |
The Siemens S7 tags you configure tells the driver how to interact with Siemens S7 PLC Devices.
You can use these I/O Data Point Tags to represent individual data points in the PLC:
| Icon | Tag Type | Version | Description |
|---|---|---|---|
 | I/O Analog Data Point Tag | 3.12 | Maps an Analog Data Point Tag to an external data source. |
 | I/O Digital Data Point Tag | 3.12 | Maps a Digital Data Point Tag to an external data source. |
 | I/O String Data Point Tag | 3.12 | Maps a String Data Point Tag to an external data source. |
 | I/O Word Data Point Tag | 3.12 | Maps a 16-bit Word Data Point Tag to an external data source. |
 | I/O Double Word Data Point Tag | 3.12 | Maps a 32-bit Double Word Data Point Tag to an external data source. |
 | I/O Long Word Data Point Tag | 3.48 | Maps a 64-bit Long Word Data Point Tag to an external data source. |
The Siemens S7 driver supports these Autodetect Wizards:
| Wizard | Description |
|---|---|
| Siemens S7-300/400 Serial | Searches serial ports for MPI adapters. Supports S7-300 and S7-400 PLC Devices. |
| Siemens S7-200 Serial | Searches serial ports for Siemens S7-200 PLC Devices. Supports direct connection and connection via a PPI adapter. |
| Siemens S7 Ethernet | Searches an Ethernet network for Siemens PLC Devices. Supports LOGO!, S7-200, S7-300, S7-400, S7-1200 and S7-1500. |
To learn how to choose a data location in a Siemens S7 PLC.
For background information on serial communications.
For information about other drivers available in Fernhill SCADA.
For the meaning of terms used in Fernhill SCADA.