Rockwell Automation 1732D-XXXX DeviceNet ArmorBlock I/O, Series A User Manual

Page 10

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Publication 1732D-IN001B-EN-E - May 2004

10 DeviceNet 1732 ArmorBlock I/O, Series A

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.

1732D-8CFGM8 and 1732D-8CFGM12

Note that the 1732D-8CFGM8 and 1732D-8CFGM12 self-assigning
modules contain both input and output functionality. These modules
do not need to be configured.

If an I/O point is to be an output, dedicate that point as an output
with a wired load and energize it through a control program.

If an I/O point is to be an input, wire the input device as normal and
leave the associated output un-energized at all times.

1732D-IB8M12 and 1732D-IB8M8

1732D-OB8EM8 and 1732D-OB8EM12

The DeviceNet Network uses advanced network technology,
producer/consumer communication, to increase network functionality
and throughput. Visit our web site at http://www.ab.com/networks
for producer/consumer technology information and updates.

Byte

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Produced 0

I7

I6

I5

I4

I3

I2

I1

I0

Consumes 0

O7

O6

O5

O4

O3

O2

O1

O0

Where: I=Input O=Output

Byte

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Produced 0

I7

I6

I5

I4

I3

I2

I1

I0

Where: I=Input

Byte

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Consumes 0

O7

O6

O5

O4

O3

O2

O1

O0

Where: O=Output

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