PSC LazerData 12000 Series, Руководство по установке

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Installation Manual LazerData
®
12000 Scanner
Installation - 2.13
2.7.2 Main serial interface
The signals, relative to the following serial interface types, are available on the
input/output connector –
EIA RS232
EIA RS485-NONPOLLED
EIA RS485-POLLED (for connection with PSC Automation multiplexer)
20-mA PASSIVE CURRENT LOOP
The LazerData 12000 Scanner automatically recognizes the type of interface
selected at each scanner power up.
If the recognized interface type is not compatible with the current communication
handshaking, then the system defaults to the XON/XOFF protocol.
The parameters of the interface selected (baud rate, data bits, etc.) can be
configured using the LDHOST utility program or Host Mode programming. For
more details refer to the section "Main Interface Menu" in the LDHOST Help
Online.
Details regarding the connections and use of the main interface selection are given
in the next sections.
RS232 interface
The serial interface is used in this case for point-to-point connections. It handles
communication with the host computer and allows both transmission of code data
and the configuration of the scanner. This is the default interface.
The following pins of the 25-pin connector are used for RS232 interface
connection:
Pin Name Function
2 TX232 Transmitted Data
3 RX232 Received Data
4 RTS232 Request To Send
5 CTS232 Clear To Send
7 SGND Signal Ground