Rockwell Automation 5730 DriveLogix5730 Controller for PowerFlex 700S Drives with Phase II Control - Manual (Page 149)

Communicating with Devices on a ControlNet Link 7-9
Sending Messages The DriveLogix5730 controller can send MSG instructions to other
controllers over a ControlNet link. Each MSG instruction requires you to
specify a target and an address within the target. The number of messages
that a device can support depends on the type of message and the type of
device:
Important: Revision 15.xx of DriveLogix firmware adds more stringent
range checks when reading to or writing from tags. Message
packets are limited to 240 bytes. This could cause some MSG
instructions that worked in previous firmware revisions to not
work in revision 15.xx firmware. For example, use a CIP
Generic MSG instruction to perform a Get Attribute Single
service. The attribute is 4 bytes in length. Assume the
destination tag is an INT data type (2 bytes in length). In
revision 13.xx firmware, the MSG instruction places the first 2
bytes of the attribute in the destination tag. In revision 15.xx
6. Enter a name and path for the network configuration.
a
hw0932.tif
ah
w0928.tif
7. Click OK to optimize and reschedule the connections.
This device:
Support this many
unconnected messages: Support this many
connected messages:
1756-CNB or 1756-CNBR module
(for a Logix5550 controller) 20 64
1788-CNx daughtercard
(for a DriveLogix controller) 5 32
with a maximum of 9 scheduled
ControlNet PLC-5 controller 32 128