Rockwell Automation 1792D-8BVT8CD ArmorBlock MaXum 8 Input/8 Output Module with Complete Diagnostics - Manual (Page 8)

8 ArmorBlock MaXum 8 Input / 8 Output Module Series B
Publication 1792D-IN020B-EN-P - September 2000
Communicate With Your ArmorBlock MaXum I/O
Module
This ArmorBlock module’s I/O is exchanged with the master through a poll,
change-of-state, or cyclic connection.
The module consumes and produces I/O data as follows:
Cyclic - allows configuration of the block as an I/O client. The block will
produce and consume its I/O cyclically at the rate configured.
Polled - a master initiates communication by sending its polled I/O message
to the module. The 8 input / 8 output module consumes the message,
updates outputs, and produces a response. The response has input data, input
faults, output faults, and the status of the Auxiliary power.
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 I/O module is alive and ready to
communicate. Consumption occurs when data changes and the master
produces new output data to the I/O block.
Refer to the table below for the word/bit definitions.
Type of I/O Connections Consumes Produces
Cyclic 1 Byte 4 Bytes
Polled 1 Byte 4 Bytes
Change-of-State 1 Byte 4 Bytes
Bit 07 06 05 04 03 02 01 00
Produces 0 I7 I6 I5 I4 I3 I2 I1 I0
Produces 1 OW-D OW-C OW-B OW-A ISC-D ISC-C ISC-B ISC-A
Produces 2 OFLT7 OFLT6 OFLT5 OFLT4 OFLT3 OFLT2 OFLT1 OFLT0
Produces 3 RSVD OPWR RSVD RSVD RSVD RSVD RSVD RSVD
Consumes 0 O7 O6 O5 O4 O3 O2 O1 O0
Where: OW= Off Wire RSVD= Reserved I = Input O = Output OPWR= Output Power
(Auxiliary Power) OFLT = Output fault ISC=Input Short Circuit in Sensor Source Voltage