Campbell COM200A, Инструкция по эксплуатации

Страница: 11 / 22

A-1
APPENDIX A. MODIFYING THE NON-VOLATILE MEMORY
To modify the COM200A’s settings, one must communicate directly to the COM200A. This may be
accomplished by using one of the two methods below.
CAUTION: Changing some of the modem's settings may result in communication problems. After
changing the settings, try the modem locally before installing it at a remote location.
A.1 REMOTE COMMUNICATION TO
THE COM200A
To remotely communicate with the COM200A,
program the datalogger to initiate a call to it
using a program similar to the Example
Program 1.* After this program runs once, the
modem is now programmed and the actual
program one wants to run may now be
downloaded to the datalogger.
*Please note that this program requires that the
option code for an RF modem be used instead
of the normal phone modem option.
TIP
RING
GND
12V
G
SC12 Cable
Red
Black
SC532
9 PIN PERIPHERAL TO RS232 INTERFACE
MADE IN USA
PERIPHERAL RS232
9227
To 12V
To GND
CAMPBELL
SCIENTIFIC
AUSTRALIA
PTY. LTD.
COM200A MODEM
S/N
0002
MADE IN U
SA
REN = 0.5
FIGURE A-1. COM200A to Computer Connection