Rockwell Automation 1407-CGCM Combination Generator Control Module - Manual (Page 143)

Rockwell Automation Publication 1407-UM001G-EN-P - April 2013 143
CGCM Unit Software Interface Chapter 6
Configuration Data Table
The Configuration data table contains configuration parameters, which are
automatically written to the CGCM unit by the ControlLogix controller when a
connection is first established or when the user changes parameters in the
RSLogix 5000 software module configuration dialog boxes and clicks the Apply
or OK buttons. The CGCM unit accepts only Configuration data if all
parameters are within range and excitation is disabled.
Data Type
The Configuration data table is automatically created by using module-defined
data type AB:1407_CGCM:C:0 for firmware revision 2.
x or
AB:1407_CGCM:C:1 for firmware revision 3. x. This tag does not show the first
four bytes of the data table.
Unscheduled reads and writes of the Configuration data table are supported. If
you wish to perform unscheduled reads or writes, you must create a user-defined
data type and (tags based on it) that begins with a four-byte pad (for example, a
DINT element) followed by the remaining tags in the AB:1407_CGCM:C:0
(or C:1) module-defined data type. You can do this in RSLogix 5000 software by
highlighting the tags in the module-defined data type definition, choosing Copy
from the Edit menu, selecting the element after the pad in the user-defined data
type and choosing Paste from the Edit menu.
In host firmware revision 3.4 and later, the configuration is also available by using
assembly instance 7. Instance 7 does not require the four-byte pad described
above.
Assembly Object Instance 4 - Configuration Data Table
The Get Attributes Single service for instance 4 of the Assembly Object can
access the following information.
IMPORTANT
Writing the CGCM unit’s configuration with unscheduled messaging is
not recommended. We recommend using only scheduled configuration
messaging sent when the connection is opened or the module
configuration is edited in RSLogix 5000 software.
Table 16 - Get Attributes Single (service code 0x0E)
Name Attribute ID Data Type Value
Data 3 UINT See Unscheduled Configuration
Read/Write Data Table,
Assembly Instance 4
Size 4 UINT 344