Siemens SIMATIC TIWAY 1 - Manual (Page 12)

OPERATION AND APPLICATION
UNILINK HOST ADAPTER 2–2
USER MANUAL
Performance
and
Applications
Flexibility
Basic HIU
Commands
Mode Independent
Commands
Configure Adapter
Commands
Extended HIU
Commands
Network
Manager
Commands
10 20 30 40
NUMBER OF COMMANDS
Figure 2–2 Performance vs Commands
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 An acknowledgment that the command was received
D A command response
D The ERROR RESPONSE