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Field device output image – Rockwell Automation 1788-EN2PAR EtherNet/IP and ControlNet to PROFIBUS PA Linking Device User Manual User Manual

Page 48

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48

Rockwell Automation Publication 1788-UM058B-EN-P - September 2014

Chapter 3

Logix Assemblies

Field Device Output Image

Each field device displays its PA diagnostics and all available PVs and their status
as shown in

Figure 11

.

Figure 11 - Field Device Output Image

PVInt1…PVInt8

If you are using a field device that requires an output, the data must be updated in
the output image of that field device. If a real value must be sent, use the copy
function to update the PVInt.

PVStatus1…PVStatus8

If you set a process variable to be a 1-byte to 4-byte format, the data is displayed in
this image.

IMPORTANT

See the

Redundant PA Code Example on page 43

for a detailed example of how

to update data for output modules.

IMPORTANT

Some field devices (such as valve positioners) operate correctly only after a
valid status (for example,

≥ 80

h

) is sent with the process variable. See

Valve

Positioner Configuration on page 34

for more details.