Campbell Scientific CR3000 Micrologger - Manual (Page 69)

Section 5. System Overview
69
• Routing — the CR3000 can act as a router, passing on messages intended for
another logger. PakBus supports automatic route detection and selection.
• Short distance networks with no extra hardware —-a CR3000 can talk to
another CR3000 over distances up to 30 feet by connecting transmit, receive
and ground wires between the dataloggers. PC communications with a
PakBus datalogger via the CS I/O port, over phone modem or radio, can be
routed to other PakBus dataloggers.
• Datalogger to datalogger communications — special CRBasic instructions
simplify transferring data between dataloggers for distributed decision
making or control.
• In a PakBus network, each datalogger is set to a unique address before being
installed. The default PakBus address in most devices is 1. To communicate
with the CR3000, the datalogger support software
(p. 76)
must know the
CR3000 PakBus address. The PakBus address is changed using the
integrated keyboard / display
(p. 404),
DevConfig utility
(p. 97),
CR3000 Status
table
(p. 530),
or PakBus Graph
(p. 463)
software.
5.1.8.2 Modbus
Read More! See Modbus
(p. 372).
The CR3000 supports Modbus master and Modbus slave communication for
inclusion in Modbus SCADA networks.
5.1.8.3 DNP3 Communication
Read More! See DNP3
(p. 369).
The CR3000 supports DNP3 slave communication for inclusion in DNP3
SCADA networks.
5.1.8.4 Keyboard Display
Read More! See Using the Keyboard Display
(p. 404).
The integrated keyboard / display is a powerful tool for field use. It allows
complete access to most datalogger tables and functions, which allow the user to
monitor, make modifications, and troubleshoot a datalogger installation
conveniently and in most weather conditions.
5.1.8.4.1 Custom Menus
Read More! To implement custom menus, see CRBasic Editor Help for the
DisplayMenu() instruction.
CRBasic programming in the CR3000 facilitates creation of custom menus for the
integrated keyboard / display.
Figure Custom Menu Example
(p. 70)
shows windows from a simple custom menu
named DataView. DataView appears as the main menu on the keyboard display.
DataView has menu item Counter, and submenus PanelTemps, TCTemps and
System Menu. Counter allows selection of one of four values. Each submenu