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3-3
Section
Connecting to a Node
33
Note For Host Link Units manufactured after July 1995 (lot No.**75), the communica-
tions parameter settings when DIP switch pin 1 is ON are as shown in the table
above.
For Host Link Units manufactured before June 1995 (lot No.**65), the commu-
nications parameter settings are different from the above (baud rate = 2,400
bps, stop bits = 1 bit.)
CPU Bus Unit System Setup
Item
Setting
Initial value
Baud rate
Specify the baud rate.
Select 2400, 4800, 9600, or 19200 bps.
9,600 bps
Stop bits
Specify the stop bit length.
Select 1 or 2 stop bits.
2 bits
Parity
Specify the parity check.
First, select “Parity
”
or “No parity.
”
If
Parity is selected, specify even or odd
parity.
Even parity
Data bits
Specify the send data bit length.
Select 7 bits or 8 bits.
7 bits
Xon/Xoff control
Specify whether Xon/Xoff control is to
be performed. This item is valid only in
full duplex mode.
Select Yes or No.
No
Communications
mode
Specify the communications mode.
Half duplex is valid only for RS-232C
interface.
Select full duplex or half duplex.
Full duplex
Retries
Specify whether data is to be resent
from scratch when transmission is
interrupted. This item is valid in half
duplex mode.
Select No or Yes.
No
Send stop code
(Xoff)
Specify the Xoff (send stop) code. This
item is valid only when Xon/Xoff control
is performed.
13 Hex
Send stop release
code (Xon)
Specify an Xon (send stop release)
code. This item is valid only when
Xon/Xoff control is performed.
11 Hex
Transmission delay
Specify the delay from the time the RS
signal is turned on until data is
transmitted. This item is valid only in
half duplex mode.
Specify a value between 00 and
FF Hex (between 0 and 255 in decimal)
The transmission delay is determined
by multiplying the setting by 2 ms (0 to
510 ms.)
If 00 Hex (0 ms) is specified, data will
be transmitted 1 ms after the RS signal
is turned on.
0 ms