Campbell 21X Especificaciones descargar pdf (Pagina 38)

Number 4250-2010

Revision 0.1

Date MAY 1996

Page 19 of 37

4.3 DCP PROGRAMMING

The Handar 540A/570A DCP operational configuration is established through a user

program that performs the following functions:

• Defines the external sensors and signal inputs to be used

• Specifies the data acquisition channels associated with each sensor or input

• Defines processing options

• Selects reporting modes and formats

• Sets scanning, reporting, and transmission schedules

Basic concepts relating to the data acquisition functions of the Handar 540A/570A DCP are

described in detail in Section 6.1 of the Handar 570A Data Acquisition System Operating and

Service Manual.

For DCPs used with the IMPROVE transmissometer network, the most recent version of

the standard DCP configuration program is available as an ASCII file, either 540ROT.DCP

(Refer to Appendix A for a complete listing of the 540ROT.DCP configuration program) or

570ROT.DCP (Refer to Appendix B for a complete listing of the 570ROT.DCP configuration

program), depending on the type of DCP to be programmed. The standard program file is first

downloaded to the DCP.

After downloading, the program in the DCP is edited to include the site-specific operating

parameters (see Table 4-1 for a list of station IDs, GOES channel assignments, and transmit

times for all IMPROVE transmissometer sites) listed below:

• Station ID

• Transmit time

GOES channel selection is controlled by the DCP channel selection switches, not by the DCP

configuration program.

Procedures for downloading the standard DCP configuration program are as follows:

VERIFY Verify that the GOES primary channel select switches are set to

GOES "900" and the secondary channel select switches set to "000." If

SWITCHES the switches are not set to these channels, they must be reset prior to

continuing with programming of the DCP.

SYNCHRONIZE Verify that your watch is synchronized with WWV by calling the

TIME NIST WWV time transmission telephone (303/499-7111).

DELETE DCP Ensure that there is no program stored in the DCP memory by

MEMORY turning the power switch to OFF, then turning it back to ON (refer

to Figure 4-3 for switch location).

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