Rockwell Automation 2098-DSD-xxx Ultra3000 Digital Servo Drives with DeviceNet - Manual (Page 15)

Publication 2098-RM004A-EN-P – August 2002
Overview 1-5
Selecting Input and Output
Assemblies for I/O
Messages The Ultra3000 Drive with DeviceNet allows you to choose between
various Input and Output Assemblies, thereby choosing the data
format of the messages that are passed back and forth between the
drive and the master (scanner) on an I/O connection. The choice of
which Input and Output Assembly to use should be based on what
sort of information is appropriate in a particular system. You should
keep in mind that larger assemblies utilize more network bandwidth.
Information on the data format of all the Assemblies is given in
Assembly Object (Class ID 04H) on page 2-11, and more specifically
the following DeviceNet parameters that select input and output
assemblies:
• Parameter 7 - I/O Receive Select
• Parameter 8 - Poll Transmit (Xmit) Select
• Parameter 9 - COS/Cyclic Transmit (Xmit) Select
IMPORTANT
If you want to control the drive with I/O messages,
Parameter 10 - Logic Command Mask must be
changed from its default value. Otherwise, if a Logic
Command is sent to the drive, the command will be
cleared.