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RS232 Port
_______________________ _
Setting The Parity Options.
DIP switches 5 and 6 on switch block 2 are used to set the
RS232 parity options. The parity may be enabled (on) or
disabled (off), when parity is enabled then the parity bit sent
may be either even parity or odd parity.
______________ _
RS232 Stop Bits.
The number of stop bits sent by the PSI BOX is
determined by the parity and data word length chosen.
No Parity.
2 STOP bits are always sent.
Parity Enabled.
7 data bits gives 2 STOP bits.
8 data bits gives 1 STOP bit.
___________________________ _
Setting The Data Word Length.
DIP switch 7 on switch block 2 is used to set the RS232
data word length. The data word may be either 7 or 8 bits long.
Figure 5-6. The Data Word Length.
______________________________ _
on
off
12345678
_____
DIP 7
0=Off
1=On
Chapter 5
7 7-Data Bits
________________________
DATA WORD LENGTH CHOSEN.
8 BITS
7 BITS
PSI BOX Reference
Page 43
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