Rockwell-automation 1747-PCIS API Software - Open Controller Uživatelský manuál Strana 14

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Publication 1747-UM002A-US-P - June 2000
1-2 Overview
Interface API to
the Scanner
You must develop a software interface between your application and
a scanner to control local I/O and to control remote I/O via the
1747-SN or 1747-SDN scanners. Develop a software interface in one of
the following methods:
Use the 1746 I/O PCI Interface API to develop the interface
between your application and the 1746 I/O PCI
Interface scanner.
Use the API for 1747 Open Controller to develop the interface
between your application and the 1747 Open Controller.
In either application type (1746 I/O PCI Interface or 1747 Open
Controller), the API provides calls for typical control functions,
such as:
configuring I/O files
initializing the scanner
accessing the user LEDs, user jumper, and 3-position switch
reading 1746 I/O PCI Interface status
enabling/disabling forces
API Software for DOS
The DOS API software provides a library of C function calls for DOS
application programs to interface with the dual port memory. The
DOS API supports any language compiler that uses the Pascal calling
convention.
Application
API
1746 I/O PCI
Interface/Open Controller
dual port memory
local I/O
remote I/O via
1747-SN or 1747-SDN
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