Allen-Bradley 1407-CGCM-DLR, User Manual, Page: 141 / 268

Rockwell Automation Publication 1407-UM002B-EN-P - February 2019 141
CGCM-DLR Unit Software Interface Chapter 6
Configuration Messaging
The CGCM-DLR unit is not configured when power is applied. Before the
CGCM-DLR unit can operate, the ControlLogix controller must perform the
configuration. There are two parts to the module configuration and a two-step
process that transfers the configuration into the CGCM-DLR unit. The
following are the two parts of the configuration data:
• Configuration data table: The configuration parameters for the
CGCM-DLR unit are stored in the controller in the Configuration data
table, see
page 157 .
• Unscheduled Write data table: Voltage regulator gain and voltage
compensation parameters are stored in the Unscheduled Write data table,
see
page 157 .
The controller automatically writes the Configuration data table to the
CGCM-DLR 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 142 .
Unscheduled Write Message Logic
This sample ladder diagram rung provides an example of message control for
writing the Unscheduled Write data table to the CGCM-DLR unit.
S implified logic rung to send the Unscheduled W rite message from the controller to the 1407-CGCM-DLR after the Configuration write has
been accepted. Enable_U W is a user-defined permissive interlock. CGCM : I.ConfigRcvd asserted indicates that the CGCM has
accepted the scheduled Configuration write. After a configuration write, the CGCM-DLR turns off CGCM : I.Unscheduled W riteRcvd,
completing the rung input logic. The one-shot fires the message instruction only once.
Enable_U W
CGCM : I.ConfigRcvd CGCM
: I.Unschd W riteRcvd
EN
DN
ER
M S G
ON S
shot1
Type - CIP Generic
Message Control
msg W riteU W