Rockwell Automation 5720 DriveLogix System - Manual (Page 163)

Publication 20D-UM002C-EN-P - November 2003
Communicating with Devices on a ControlNet Link 7-17
When the DriveLogix controller initiates messages to PLC or SLC controllers,
you do not have to map compatibility files. You enter the data table address of
the target device just as you would a tag name.
SLC 5/05 controllers, SLC 5/04 controllers (OS402 and above), and
SLC 5/03 controllers (OS303 and above) support logical ASCII addressing
and support PLC/SLC mapping (see the examples above). For all other SLC
or MicroLogix1000 controllers, you must map a PLC-2 compatibility file (see
the PLC-2 examples above).
Producing and
Consuming Data The DriveLogix controller supports the ability to produce (broadcast) and
consume (receive) system-shared tags over a ControlNet link. Produced and
consumed data is accessible by multiple controllers over a ControlNet
network. Produced and consumed data are scheduled connections because the
controller sends or receives data at a predetermined RPI rate.
Produced and consumed tags must be controller-scoped tags of DINT or
REAL data type, or in an array or structure.
PLC-2 writes to DriveLogix source element 010
destination tag 200
The destination tag is the three-digit PLC-2 address you specified for PLC-2 mapping.
PLC-5 reads from DriveLogix
SLC reads from DriveLogix
SLC 5/05
SLC 5/04 OS402 and above
SLC 5/03 OS303 and above
source tag “array_1”
destination element N7:10
The PLC-5, PLC-3, and SLC controllers support logical ASCII addressing so you do not
have to map a compatibility file for MSG instructions initiated by a PLC-5, PLC-3, or SLC
controller. Place the DriveLogix tag name in double quotes (“).
You could optionally map a compatibility file. For example, if you enter 10 for the
compatibility file, you enter N10:0 for the source tag.
PLC-2 reads from DriveLogix source tag 200
destination element 010
The source tag is the three-digit PLC-2 address you specified for PLC-2 mapping.
Type of MSG Instruction: Example Source and Destination:
Tag type: Description: Specify:
produced These are tags that the controller
produced for other controllers to consume.
• Enabled for producing
• How many consumers allowed
consumed These are tags whose values are produced
by another controller.
• Controller name that owns the tag that the local controller
wants to consume
• Tag name or instance that the controller wants to consume
• Data type of the tag to consume
• Update interval of how often the local controller consumes
the tag