Siemens S7 Driver

Help Contents

Introduction

The Siemens S7 driver supports these types of Siemens PLC and communication methods:

PLC RangeCommunication Method
LOGO!Direct connection to the Ethernet port on 0BA7 and 0BA8 LOGO! PLC Devices.
S7-200S7-200 direct connection using an RS-485 adapter
S7-200 connection using a PPI Adapter
S7-200 Ethernet connection using a CP-243-1 communications module
S7-300Serial connection using an MPI Adapter
Ethernet connection using a CP-343-1 communications module
S7-400Serial connection using an MPI Adapter
Ethernet connection using a CP-443-1 communications module
S7-1200Siemens S7-1200/1500 Ethernet Connection Guide
S7-1500Siemens S7-1200/1500 Ethernet Connection Guide

Fernhill SCADA Siemens S7 Tags

The Siemens S7 driver provides these tag types to support communication with Siemens S7 PLC Devices:

IconTag TypeVersionDescription
Channel IconSiemens S7 Ethernet channel1.4A connection to a Siemens S7 device using the TCP/IP protocol.
Channel IconSiemens S7 MPI channel1.4A serial port connected to an S7-300 or S7-400 PLC.
Channel IconSiemens S7 PPI channel1.4A serial port connected to an S7-200 PLC.
PLC Device IconSiemens S7 Ethernet PLC Tag1.4A Siemens S7 PLC Tag connected via Ethernet.
PLC Device IconSiemens S7 Serial PLC Tag1.4A Siemens S7 PLC Tag connected via a serial link (MPI or PPI).
Memory Block IconSiemens S7 memory block1.4A 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.

Fernhill SCADA I/O Data Point Tags

You can use these I/O Data Point Tags to represent individual data points in the PLC:

IconTag TypeVersionDescription
Analog Data Point TagI/O Analog Data Point Tag3.12Maps an Analog Data Point Tag to an external data source.
Digital Data Point TagI/O Digital Data Point Tag3.12Maps a Digital Data Point Tag to an external data source.
String Data Point TagI/O String Data Point Tag3.12Maps a String Data Point Tag to an external data source.
Word Data Point TagI/O Word Data Point Tag3.12Maps a 16-bit Word Data Point Tag to an external data source.
Double Word Data Point TagI/O Double Word Data Point Tag3.12Maps a 32-bit Double Word Data Point Tag to an external data source.
Long Word Data Point TagI/O Long Word Data Point Tag3.48Maps a 64-bit Long Word Data Point Tag to an external data source.

Autodetect Wizards

The Siemens S7 driver supports these Autodetect Wizards:

WizardDescription
Siemens S7-300/400 SerialSearches serial ports for MPI adapters.
Supports S7-300 and S7-400 PLC Devices.
Siemens S7-200 SerialSearches serial ports for Siemens S7-200 PLC Devices.
Supports direct connection and connection via a PPI adapter.
Siemens S7 EthernetSearches an Ethernet network for Siemens PLC Devices.
Supports LOGO!, S7-200, S7-300, S7-400, S7-1200 and S7-1500.

Further Information

Siemens S7 PLC Data Address Format

To learn how to choose a data location in a Siemens S7 PLC.

Serial Communications

For background information on serial communications.

Fernhill SCADA Drivers

For information about other drivers available in Fernhill SCADA.

Glossary

For the meaning of terms used in Fernhill SCADA.