Campbell Hausfeld COM220 Manual Do Utilizador

The COM220 is connected to a CSI datalogger by a 9-pin subminiature D 
cable.  This is the same 9-pin CS I/O interface common to all Campbell 
Scientific dataloggers (except the CR200 series).  This is not an RS-232 
connection.  Appendix B describes the CS I/O interface. 

The COM220 can be used as an originate modem at the datalogger site.  For 
non-Pakbus dataloggers (e.g., CR510, CR10X, CR23X), and for older PakBus 
dataloggers (e.g. CR10XPB, CR23XPB, CR510PB) use Instruction 97 to 
program the datalogger to originate a call to the computer; refer to your 
datalogger manual for a detailed description of Instruction 97.  For newer 
Pakbus dataloggers (e.g., CR800, CR1000, CR3000) use the ModemCallback 
instruction or the DialSequence and DialModem instructions to program the 
datalogger to originate a call to the computer.  Again, refer to your datalogger 
manual and LoggerNet Help files for detailed descriptions of these 
instructions.  In addition, Appendix A.4 includes sample programs for the P97, 
ModemCallback, and DialModem instructions.  

The COM220 features a built-in speaker to allow monitoring of calling and 
connection.  See Appendix A.2 for the Hayes AT commands that affect the 
speaker on/off and volume settings. 

 

A Hayes-compatible modem is used at the computer site with Campbell 
Scientific computer software to call the datalogger attached to the COM220.  
The computer’s modem must be configured to the proper settings using a set of 
modem initialization strings in the software program’s pick list.