Host Port Protocol - Microscan MS-3 User Manual

Host Port Protocol

Host Port Protocol
Usage: In general, the point-to-point protocols will work well in most applica-
tions. They require no address and must use RS-232 or RS-422 commu-
nications standards.
Definition: Protocols define the sequence and format in which information is trans-
ferred between the reader and the host, or in the case of Multidrop,
between readers and a concentrator.
Serial Cmd: <K140,protocol>
Default: Point-to-Point
Options: 0 = Point-to-Point
1 = Point-to-Point with RTS/CTS
2 = Point-to-Point with XON/XOFF
3 = Point-to-Point with RTS/CTS &
XON/XOFF
If selecting one of the options from 0 to 4 (Point-to-Point, Point-to-
Point with RTS/CTS, Point-to-Point with XON/XOFF, Point-to-
Point with RTS/CTS and XON/XOFF, or Polling Mode D), use the
<K140,protocol> format.
Option 5 through 7 are special cases and discussed later in this section.
Point-to-Point (standard)
Usage: Used only with RS232 or RS422.
Definition: Standard Point-to-Point requires no address and sends data to the host
whenever it is available, without any request or handshake from the host.
Serial Cmd: <K140,
2-4
MS-3 CCD Reader User's Manual
0>
4 = Polling Mode D
5 = Multidrop
6 = User Defined
7 = User Defined Multidrop