beautypg.com

3 typical network applications, The unilink host adapter – Siemens SIMATIC TIWAY 1 User Manual

Page 6

background image

THE UNILINK HOST ADAPTER

UNILINK HOST ADAPTER

1–5

USER MANUAL

D The adapter is configurable for a variety of applications needs and

includes multiple host computer support, allowing several host
computers to communicate with the secondary devices on the same
TIWAY I network.

D The adapter provides transaction statistics collection to aid network

performance tuning.

1.3

TYPICAL NETWORK APPLICATIONS

Figure 1–5 illustrates a typical single host network managing a process control
application. The host computer application directs the secondary devices
through the UNILINK Host Adapter and the TIWAY I network. Commands are
provided for downloading or uploading data from the host computer to the
secondary devices and for checking the status of an individual device.

Host

Computer

UNILINK

TIWAY I

UniLink Host Adapter ( MHU)

RS–232–C/RS–423–A
Host Interface Cable

Figure 1–5 Single Host Network