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Wiring and Connections Section 3-4
3-4-11 No-Protocol Communications
The TXD(48) and RXD(47) instructions can be used in no-protocol mode to
exchange data with standard serial devices. For example, data can be
received from a bar code reader or transmitted to a serial printer. The serial
devices can be connected to the communications port as a RS-232C port or
peripheral port, as shown in the following diagrams.
Note See One-to-one Computer Connections on page 142 for details on the sys-
tem configurations that can be assembled for serial communications.
CPM2C CPU Unit
RS-232C devices
Bar code reader
Serial printer
Other serial device
CPM2C-CIF21
CPM2C-CIF01-V1
CPM2C-CIF11
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