Siemens SIMATIC TIWAY 1 - Manual (Page 70)

CONFIGURING THE HOST COMPUTER PORT
UNILINK HOST ADAPTER 3–12
USER MANUAL
3.3.1.1 Setting the Host Port Parameters
The host port communication parameters are configured with two 10-position
dipswitches located at the front of the adapter as shown in Figure 3–3. To select
NITP as the operating protocol, set position 1 of Dipswitch 1 up as shown in
Figure 3–10.
1 2 3 4 5 6 7 8 9 10
U
P
DIPSWITCH 1
HOST COMMAND
1 2 3 4 5 6 7 8 9 10
U
P
DIPSWITCH 2
MSB LSB
UP = SYNCHRONOUS
DOWN = ASYNCHRONOUS
UP = FULL DUPLEX
DOWN = HALF DUPLEX
UP = TEST MODE
DOWN = RUN MODE
UP = HIU/EHA &
DOWN = MHIU/EHA
HOST PORT BAUD RATE
UP = EVEN PARITY
DOWN = ODD PARITY
UP = PARITY ENABLED
DOWN = PARITY DISABLED
HOST PORT
HOST PORT
HOST PORT
HOST PORT
TIMEOUT
IO LOOP TEST
UP=NTP
UP DOWN
KEY
Figure 3–10 NITP Dipswitch Settings
NOTE
The host port parameters specify the physical layer
protocol parameters and do not imply that the data
link protocols can be either asynchronous or
synchronous. Both the BDLC and NITP protocols are
asynchronous data link layer protocols.