No-Protocol Communications - Omron CPM1 - PROGRAMING MANUAL 02-2001 Programming Manual

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CPM2A/CPM2C Communications Functions

4-3-2 No-protocol Communications

Overview
RS-232C devices
Bar code reader
Serial printer
Other
RS-232C devices
Bar code reader
Serial printer
Other
RS-232C devices
Bar code reader
Serial printer
Other
In the following program example TXD(48) is used to transmit data from an
RS-232C port to a host computer. If AR 0805 (the RS-232C Transmit Ready
Flag) is ON when IR 00100 turns ON, the ten bytes of data (DM 0100 to
DM 0104) will be transmitted to the host computer, leftmost bytes first.
(48)
When no-protocol communications are used, data can be exchanged with serial
devices such as bar code readers and serial printers using TXD(48) and
RXD(47). No-protocol communications can be used with either an RS-232C
port or peripheral port.
CPM2A Connections
CPM1-CIF01 RS-232C Adapter
CTS control cannot be used.
(
CQM1-CIF01/02 RS-232C Adapter
CTS control cannot be used.
(
Leading address of data to be transmitted
RS-232C port specification
10 bytes
CPM2A CPU Unit
RS-232C port
CPM2A CPU Unit
)
Peripheral port
CPM2A CPU Unit
)
Peripheral port
Section
4-3
251

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