Siemens SIMATIC TIWAY 1 User Manual page 12

Performance
and
Applications
Flexibility
Communications between the host computer and the UNILINK Host Adapter
are a series of commands and responses as illustrated in Figure 2–3. For every
command sent, there will be a response. The response will be one of the
following.
D
D
D
UNILINK HOST ADAPTER
USER MANUAL
OPERATION AND APPLICATION
Mode Independent
Commands
Basic HIU
Commands
10
NUMBER OF COMMANDS
Figure 2–2 Performance vs Commands
An acknowledgment that the command was received
A command response
The ERROR RESPONSE
Extended HIU
Commands
Configure Adapter
Commands
20 30
2–2
Network
Manager
Commands
40