Allen-Bradley 1407-CGCM, User Manual, Page: 145 / 252

Rockwell Automation Publication 1407-UM001H-EN-P - November 2014
CGCM Unit Software Interface #HAPTER
Message size depends on the unit’s firmware revision. 64 (FRN 2.
x
) or 76 (FRN
3.
x
or later) byte Message size from CNET to CGCM (Written to the CGCM
unit).
#ONFIGURATION$ATA4ABLE
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.
$ATA4YPE
The Configuration data table is automatically created by using module-defined
data type AB:1407_CGCM:C:0 for firmware revision 2.
x
or
AB:1407_CGCM:C:1 for firmware revision 3.
x
. This tag does not show the first
four bytes of the data table.
Unscheduled reads and writes of the Configuration data table are supported. If
you wish to perform unscheduled reads or writes, you must create a user-defined
data type and (tags based on it) that begins with a four-byte pad (for example, a
DINT element) followed by the remaining tags in the AB:1407_CGCM:C:0
(or C:1) module-defined data type. You can do this in RSLogix 5000 software by
highlighting the tags in the module-defined data type definition, choosing Copy
from the Edit menu, selecting the element after the pad in the user-defined data
type and choosing Paste from the Edit menu.
In host firmware revision 3.4 and later, the configuration is also available by using
assembly instance 7. Instance 7 does not require the four-byte pad described
above.
64 4 Real kWHoursPreset kW Hours Preset
-1 x 10
12
…1 x 10
12 17
68 4 Real kVARHoursPreset kVAR Hours Preset
-1 x 10
12
…1 x 10
12 18
72 4 Real kVAHoursPreset kVA Hours Preset
0…1 x 10
12 19
4ABLE5NSCHEDULED7RITE$ATA4ABLE!SSEMBLY)NSTANCE
"YTE 3IZEIN
"YTES
4YPE 4AG.AME $ESCRIPTION 5NITS 2ANGE %RROR
#ODE
4)0
The last three elements are present only in the CGCM unit host firmware
revision 3.
X
or later.