Campbell Scientific CR3000 CR3000 Micrologger - Page 108

Section 7. Installation Figure 44: DevConfig Logger Control tab 7.6.3.2 Settings via CRBasic Some variables in the Status table can be requested or set during program execution using CRBasic commands SetStatus() and SetSecurity(). Entries can be requested or set by setting a Public or Dim variable equivalent to the Status table entry, as can be done with variables in any data table. For example, to set a variable, x, equal to a Status table entry, the syntax is, x = Status.StatusTableEntry Careful programming is required when changing settings via CRBasic to ensure users are not inadvertently blocked from communicating with the CR3000, the remedy for which may be a site visit. 7.6.3.3 Durable Settings Many CR3000 settings can be changed remotely over a telecommunications link either directly or as part of the CRBasic program. This convenience comes with the risk of inadvertently changing settings and disabling communications. Such an instance will likely require an on-site visit to correct the problem. For example, wireless-ethernet (cell) modems are often controlled by a switched 12-Vdc (SW12V) channel. SW12V is normally off, so, if the program controlling SW12V is disabled, such as by replacing it with a program that neglects SW12V control, the cell modem is switched off and the remote CR3000 drops out of telecommunications. 108