Rockwell Automation 1792D-16BVTOD ArmorBlock MaXum 16 Input Module Series B - Manual (Page 7)

ArmorBlock MaXum 16 Input Module Series B 7
Publication 1792D-IN016B-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 16 input module scans the inputs and
fault bits producing a response that reflects their 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.
Refer to the table below for the word/bit definitions.
Type of I/O Connections Consumes Produces
Cyclic 0 Byte 4 Bytes
Polled 0 Byte 4 Bytes
Change-of-State 0 Byte 4 Bytes
Bit 07 06 05 04 03 02 01 00
Produces 0 I7 I6 I5 I4 I3 I2 I1 I0
Produces 1 I15 I14 I13 I12 I11 I10 I9 I8
Produces 2 ISC-H ISC-G ISC-F ISC-E ISC-D ISC-C ISC-B ISC-A
Produces 3 OW-H OW-G OW-F OW-E OW-D OW-C OW-B OW-A
Where: OW = Off Wire I = Input ISC = Input Short Circuit in Sensor Source Voltage