Rockwell Automation 1792D-8BIO8E ArmorBlock MaXum 8 Input/8 Output Module Series B - Manuel (Page 7)

ArmorBlock MaXum 8 Input/8 Output Module Series B 7
Publication 1792D-IN033B-EN-P - September 2000
DeviceNet Cable
DeviceNet cables are described in the installation publications for the
cable base of your choice. Refer to the following publications:
•
1792D-IN009B-EN-P ArmorBlock MaXum Cable Base
Installation Guide
•
DN-6.7.2 DeviceNet Cable Planning and Installation Manual
Communicate With Your ArmorBlock MaXum Module
This ArmorBlock module’s I/O is exchanged with the master through
a polled, change-of-state, or cyclic connection.
The module consumes and produces input data as follows:
Cyclic - allows configuration of the block as an I/O client. The block
will produce its I/O cyclically at the rate configured.
Polled - a master initiates communication by sending its polled I/O
message to the module. The module consumes the message, updates
outputs, and produces a response. The response has input data and
I/O fault status.
Change-of-State - productions occur when an input changes or a
fault condition occurs. If no input or fault condition change occurs
within the expected packet rate, a heartbeat production occurs. This
heartbeat production tells the scanner module that the module is alive
and ready to communicate.
ATTENTION
!
Power for this unit’s outputs is derived from
DeviceNet power. A short on the output device
could affect DeviceNet operation.
Type of I/O Connections Consumes Produces
Cyclic 1 Byte 2 Bytes
Polled 1 Byte 2 Bytes
Change-of-State 1 Byte 2 Bytes