Rs-232 handshaking, Rs-232 word length: data bits, stop bits, Rs-232 handshaking -10 – Honeywell 2020 User Manual

Page 56

Advertising
background image

2 - 10

RS-232 Word Length: Data Bits, Stop Bits, and Parity

Data Bits sets the word length at 7 or 8 bits of data per character. If an applica-
tion requires only ASCII Hex characters 0 through 7F decimal (text, digits, and
punctuation), select 7 data bits. For applications which require use of the full
ASCII set, select 8 data bits per character.

Default = 8.

Stop Bits sets the stop bits at 1 or 2. Default = 1.

Parity provides a means of checking character bit patterns for validity.
Default = None.

RS-232 Handshaking

RS-232 Handshaking allows control of data transmission from the image scan-
ner using software commands from the host device. CTS/RTS operates in
mode 2. When this feature is turned

Off, no data flow control is used. When

Data Flow Control is turned

On, the host device suspends transmission by

sending the XOFF character (DC3, hex 13) to the image scanner. To resume

7 Data, 1 Stop, Parity Even

7 Data, 1 Stop, Parity None

7 Data, 1 Stop, Parity Odd

7 Data, 2 Stop, Parity Odd

7 Data, 2 Stop, Parity Even

7 Data, 2 Stop Parity None

* 8 Data, 1 Stop, Parity None

8 Data, 1 Stop, Parity Even

8 Data, 1 Stop, Parity Odd

Advertising