Siemens SIMATIC TIWAY 1 - Manual (Page 8)

THE UNILINK HOST ADAPTER
UNILINK HOST ADAPTER 1–7
USER MANUAL
1.4 TIWAY I SYSTEM CHARACTERISTICS
TIWAY I is a bus structure Local Area Network (LAN) designed for industrial
environments. The TIWAY I network connects a series of Texas Instruments
Programmable Controllers (P/Cs) and other devices to one or more host
computers. With the network, you can obtain, modify or replace data stored in
any of the following Siemens products:
D SIMATIC 
TI520

/SIMATIC

TI530

/
SIMATIC

TI520C

/SIMATIC

TI530C

P/Cs
D SIMATIC

TI560

/SIMATIC

TI565

P/Cs
D PM550/PM550C P/Cs
D 5TI, Series 102, 103 P/Cs
D IT–111, IT–121, IT–121A, IT150, and IT–160 Intelligent Tank
Transmitters (ITTs)
The P/Cs are connected to a TIWAY I network through Network Interface
Modules (NIMs). The PM550 P/C can also be connected with a Computer
Interface Module (CIM), but it limits the configuration choices. The UNILINK
Secondary Adapter is a TIWAY I interface device that allows other devices, such
as the following, to be connected to a TIWAY I network.
D Robots
D Computer numerical controlled machines
D Non-SIMATIC programmable controllers
D Intelligent instruments
D Computer equipment
TIWAY I gateways are also available for connecting the Fisher, Foxboro, and
Honeywell networks to TIWAY I. However, you cannot use a gateway and a
UNILINK Host Adapter in the same TIWAY I network. TIWAY I is designed to
satisfy today’s factory requirements for acquiring data and controlling
manufacturing processes. It is a noise-hardened serial binary communications
network that uses an advanced data link protocol.
Series 500 controllers can be connected with PEERLINK

for high speed
transfer of small amounts of data between controllers. The PEERLINK is a
solution for applications where one or more Series 500 controllers are
dependent on high speed transfer of data from another Series 500 controller.