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! PLCs.
S7-200 S7-200 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
S7-300 Serial connection using an MPI Adapter
Ethernet connection using a CP-343-1 communications module
S7-400 Serial connection using an MPI Adapter
Ethernet connection using a CP-443-1 communications module
S7-1200 Siemens S7-1200/1500 Ethernet Setup Guide
S7-1500 Siemens S7-1200/1500 Ethernet Setup Guide

Fernhill SCADA Siemens S7 Tags

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

Icon Tag Type Version Description
Channel Icon Siemens S7 Ethernet channel 1.4 A connection to a Siemens S7 device using the TCP/IP protocol.
Channel Icon Siemens S7 MPI channel 1.4 A serial port connected to an S7-300 or S7-400 PLC.
Channel Icon Siemens S7 PPI channel 1.4 A serial port connected to an S7-200 PLC.
PLC Device Icon Siemens S7 Ethernet PLC Tag 1.4 A Siemens S7 PLC Tag connected via Ethernet.
PLC Device Icon Siemens S7 Serial PLC Tag 1.4 A Siemens S7 PLC Tag connected via a serial link (MPI or PPI).
Memory Block Icon 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 PLCs.

Fernhill SCADA IO Data Tags

You can use these IO Data Tags to represent individual data points in the PLC:

Icon Tag Type Version Description
Analog Data Tag IO Analog Data Tag 3.12 Maps an analog tag to an external data source.
Digital Data Tag IO Digital Data Tag 3.12 Maps a digital tag to an external data source.
String Data Tag IO String Data Tag 3.12 Maps a string tag to an external data source.
Word Data Tag IO Word Tag 3.12 Maps a 16-bit unsigned integer tag to an external data source.
Double Word Data Tag IO Double Word Tag 3.12 Maps a 32-bit unsigned integer tag to an external data source.

Autodetect Wizards

The Siemens S7 driver supports these Autodetect Wizards:

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

Further Information

Siemens S7 PLC Data Address Format

To learn about how to specify 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.