Allen-Bradley 1407-CGCM, User Manual, Page: 129 / 252

Rockwell Automation Publication 1407-UM001H-EN-P - November 2014
CGCM Unit Software Interface #HAPTER
In addition to the module configuration interface, the data in the Configuration
and Unscheduled Write tags can be accessed by reading and writing elements of
the tags in the user program.
If you wish to monitor the content of the Unscheduled Read data type in the user
program, you must create a tag with data type
AB:1407_CGCM:Unscheduled_Read and create logic in the user program to
initiate unscheduled read messages to the CGCM unit.
#ONFIGURATION-ESSAGING
The CGCM unit is not configured when power is applied. Before the CGCM
unit can operate, use the ControlLogix controller to configure the unit. There are
two parts to the module configuration and a two-step process that transfers the
configuration into the CGCM unit. The follow are the two parts of the
configuration data:
•
Configuration data table: The configuration parameters for the CGCM
unit are stored in the controller in the
Configuration Data Table on
page 145 .
•
Unscheduled Write data table: Voltage regulator gain and voltage
compensation parameters are stored in the
Unscheduled Write Data Table
on page 143.
The controller automatically writes the Configuration data table to the CGCM
unit. The user program controls the write of the Unscheduled Write data. The
two-step configuration process is described in the
Connection Behavior during
Configuration section on page 130 .
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RSLogix 5000 software performs data range checks on configuration data
entered into the module configuration screens. This does not ensure that
data is appropriate for the application. No data range checking is
performed on configuration data that is modified by the user program.
Out-of-range configuration data is not accepted by the CGCM unit and a
communication error results.