3 cr10 telecommunications interface – Campbell Scientific SM192/SM716 Storage Modules User Manual

Page 20

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SECTION 5. DATA RETRIEVAL

5-4

6.

Send the last carriage return to execute
the data retrieval.

The same fundamental procedures used in a
manually executed data transfer form the basis
of SMCOM's data retrieval options. They can
also be employed in a user-written program to
automate data retrieval for non-IBM compatible
computers.

Appendix B contains a sample flow diagram. It
can serve as the basis for a user-written data
retrieval program.

5.3.3 CR10 TELECOMMUNICATIONS
INTERFACE

Make the connections (Figure 5.1.3) and
establish communications with the CR10. Send
the command "XM,CR" to the CR10 (where X is
the Storage Module address 1...8). If the
connections are correctly made and the Storage
Module is properly addressed, it will send back
"CR, LF, %." If the attempt to establish
communications fails, the CR10 will return "*".

Once the "%" is received, the Storage Module
telecommunications commands (Appendix D)
may be used as described above. SMCOM
may be used when the connection to the CR10
is through the SC32A Optically Isolated R5232
Interface.

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