Filter
Top Products
r
AR-3000 RS-232C Reference -1
Section1 Introduction
This manual explains how to control the AR-3000 using RS-232C. For details on the operation of
the AR-3000 itself, refer to the AR-3000 owner's manual. This manual assumes that you have a
basic understanding of computers. For explanations of computer terminology or operation, please
refer to commercially available manuals.
The contents of this manual are subject to change without notice.
1.1 If You Have Been Using the AR-2000
The AR-3000's command set, which employs RS-232C, is designed to be backwardly compatible
with the AR-2000. This means it is possible for you to continue using the control system you have
used with the AR-2000. However, since the AR-3000 and AR-2000 are not functionally identical in
every respect, some functions cannot be used. For more information, check the included
specifications.
Section2 Setup
2.1 About the RS-232C Interface
RS-232C is a standardized type of serial interface. The connections which are used by the AR-3000
are discussed below.
2.1.1 Connector and Cable
Connector specifications Cable specifications
*2
2.2 Handshaking
If the AR-3000's processing speed is slower than the speed at which data is transmitted from the
computer, measures must be taken to avoid data loss. Conversely, data loss will also occur if data is
transmitted from the AR-3000 faster than the computer can process it.
For these reasons, the AR-3000 uses “Xon/Xoff” handshaking.
The external computer can control transmission from the AR-3000 in the same way.
The ASCII code signal name for Xon is DC1, which is 11H.
The ASCII code signal name for Xoff is DC3, which is 13H.
* The AR-3000 is equipped with a D-sub 9-pin type
female
connector. In the case of connecting by female –
female crossing cable, use gender changer.
*1 This is already connected in inside of the
AR-3000. (4 – 6, 7 - 8 )
*2 At least three line(RXD, TXD, GND) should be
connected as shown in a figure.
*1
*1