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1010BXFM-3
Section 1
1.12 HOW TO USE THE RS-232 INTERFACE TO ENTER DATA
This section describes the hardware, software and procedural requirements for programming
System 1010BX using a PC connected to its RS-232 serial I/O port. Although you can construct
your own interface cable, it is probably more convenient to purchase Controlotron’s serial
interface cable (1015CPC-N) made specifically for this purpose. The Controlotron serial inter-
face cable provides both 9-pin and 25-pin connectors to accommodate all IBM-compatible se-
rial port configurations. You will also need a PC communication program such as Terminal
(Windows 3.x™) or HyperTerminal (Windows 95/98™) to serve as the data entry interface.
We recommend these programs simply because they are free and universally owned. How-
ever, you can use your own favorite DOS or Windows-based software as long as it supports
VT-100 emulation. These programs reproduce the menu screens that appear on our 1010 sys-
tems with graphic display screens (screens shown in this section are actual HyperTerminal™
screen captures). The site setup procedure for System 1010BX and our graphic display sys-
tems (e.g., the 1010BN Interface Detector) are virtually identical.
NOTE: If you use a DOS-based communications program, make sure that your PC is
loading the ANSI.SYS driver via your Config.Sys start-up file. Set the RS-232
parameters to match those of the meter (see example of HyperTerminal™
screen on the next page).
1.12.1 THE RS-232 INTERFACE CABLE
The figure below is the schematic of the serial interface cable (part number: 1015CPC-N) needed
to make the physical connection between the 1010BX and your PC. The wire ends for the
1010BX termination are stripped for easy insertion into TB2 on the 1010BX. Note that both
connectors have their CTS pin shorted to the RTS pin (pins 4-5 on 25-pin connector and pins 7-
8 on 9-pin connector). This eliminates the need for hardware “handshaking.”
1
10
20
11
9-Pin Serial
Connector
TB2 of
1010SX Flow
25-Pin Serial
Connector
1.12.2 ESTABLISHING COMMUNICATIONS USING HyperTerminal™
(WIN 95/98™)
This section shows how to communicate with 1010BX using the Windows 95/98™ based com-
munication program HyperTerminal™. It assumes that you’re familiar with Windows 95/98™
and have a basic understanding of serial communications.
SCHEMATIC OF CONTROLOTRON 1015CPC-N INTERFACE CABLE
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