INSTALLATION
3 - 4
I-E96-217A
®
Port Option Switch (S3) Settings
The port option switch (S3) sets the byte framing and parity for
both serial ports. Byte framing can be set to seven or eight
data bits and one or two stop bits. Parity can be set to odd,
even or none. Table
shows the port options and the corre-
sponding switch settings. Figure
shows the location of this
switch.
Determine the byte framing and parity requirements for your
application and set dipswitch positions 2 thru 4 to the corre-
sponding position defined in Table
S3 dipswitch position 1 determines whether port 1 (i.e., diag-
nostic port) uses the byte framing and parity set on S3 or pre-
defined values. Set dipswitch position 1 to CLOSED (ON) to
use the values set on S3 for both port 1 and port 2. Set
dipswitch position 1 to OPEN (OFF) to use the values set on S3
for port 2 (i.e., computer port), and to set port 1 to eight data
bits, one stop bit and even parity.
Port Operational Option Switch (S4) Settings
The port operational option switch (S4) sets normal opera-
tional options and test mode options for both serial ports.
When operating with Bailey Controls software and equipment,
the normal position for the four S4 dipswitch positions is
CLOSED (ON). Table
lists the options that can be set with
S4. Figure
Determine the requirements for your application and set each
dipswitch position to the corresponding position defined in
Table
. The echo check setting is used when testing the
SPM.
explains the use of this setting.
Table 3-2. Port Option Switch (S3) Settings
Dipswitch
Data
Bits
Stop
Bits
Type
Parity
2
3
4
ON
ON
ON
7
2
EVEN
ON
ON
OFF
7
2
ODD
ON
OFF
ON
7
1
EVEN
ON
OFF
OFF
7
1
ODD
OFF
ON
ON
8
2
NONE
OFF
ON
OFF
8
1
NONE
OFF
OFF
ON
8
1
EVEN
OFF
OFF
OFF
8
1
ODD
NOTE: ON = CLOSED, OFF = OPEN