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SIE Protocol PLX3x Series ♦ Multi-Protocol Gateways
User Manual
Page 154 of 215 ProSoft Technology, Inc.
January 25, 2018
9.1.1 SIE General Specifications
10/100 MB Ethernet Communication
port

Actively reads data from and writes data to Siemens
Industrial Ethernet devices, using Siemens Industrial
Ethernet protocol

Siemens Industrial Ethernet data types overlap in the
gateway's memory database, so the same data can be
conveniently read or written as bit-level or register-level
data

Offers 20 client connections with up to 16 commands
each to multiple servers

Configurable floating-point data movement

Status and error information is generated by the
gateway
Supported PLC Data Exchange
(Read and Write) Siemens S7-200, Siemens S7-300, Siemens S7-400,
Siemens S7-1200
Supported Register Types DB, Inputs, Outputs, Flags, Counters, Timers
9.1.2 SIE Gateway Internal Database
The internal database is central to the functionality of the PLX3x gateway. The
gateway shares this database between all the communications ports on the
gateway and uses it as a conduit to pass information from one protocol to
another device on one network to one or more devices on another network. This
permits data from devices on one communication port to be accessed and
controlled by devices on another communication port.
In addition to data from the client and server, you can map status and error
information generated by the gateway into the user data area of the internal
database. The internal database is divided into two areas:

Upper memory for the module status data area. This is where the module
writes internal status data for the protocols supported by the module.

Lower memory for the user data area. This is where incoming data from
external devices is stored and accessed.