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CR1000 Manual - Campbell Scientific

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Section 7. Installation<br />

Figure 42: DevConfig Logger Control tab<br />

7.6.3.2 Settings via CRBasic<br />

Some variables in the Status table can be requested or set during program<br />

execution using CRBasic commands SetStatus() and SetSecurity(). Entries can<br />

be requested or set by setting a Public or Dim variable equivalent to the Status<br />

table entry, as can be done with variables in any data table. For example, to set a<br />

variable, x, equal to a Status table entry, the syntax is,<br />

x = Status.StatusTableEntry<br />

Careful programming is required when changing settings via CRBasic to ensure<br />

users are not inadvertently blocked from communicating with the <strong>CR1000</strong>, the<br />

remedy for which may be a site visit.<br />

7.6.3.3 Durable Settings<br />

Many <strong>CR1000</strong> settings can be changed remotely over a telecommunications link<br />

either directly or as part of the CRBasic program. This convenience comes with<br />

the risk of inadvertently changing settings and disabling communications. Such an<br />

instance will likely require an on-site visit to correct the problem. For example,<br />

wireless-ethernet (cell) modems are often controlled by a switched 12-Vdc (SW-<br />

12) channel. SW-12 is normally off, so, if the program controlling SW-12 is<br />

disabled, such as by replacing it with a program that neglects SW-12 control, the<br />

cell modem is switched off and the remote <strong>CR1000</strong> drops out of<br />

telecommunications.<br />

103

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