Monitoring the data value of tags – Rockwell Automation 1757-ABRIO Process Remote I/O (RIO) Communication Interface Module User Manual

Page 80

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Publication 1757-UM007D-EN-P - December 2008

Chapter 7 Monitoring the 1757-ABRIO Module

Use the Edit>Write toolbar button or the menu item to enable editing.
You can now change any data and it will be written to the network
(outputs) or to the data table (inputs). However if the same data is
being updated by I/O modules or the controller, the value you write is
overwritten the next time this I/O module is scanned.

Monitoring the Data Value
of Tags

To monitor the current data value in a tag, complete the following
steps.

1. Select the corresponding tab for the data type of the tag you

want to monitor (Numeric read, etc.).

2. Select the tag you want to monitor.

3. Right-click the tag and select Monitor Tag.

The tag monitor displays the raw data for the tag, as well as
diagnostic data.

The raw data can be displayed as floating point, hexadecimal, signed,
or unsigned integer.

Refer to the following table for tag diagnostic information.

To clear the diagnostic counters, select Actions>ClearDiagCounters or
click the Clear Diag Counters button on the toolbar.

Tag Diagnostic Counters

Counter

Description

Tag Name

The tag name in

AbRioCfg software

Command

Read or write

Type

Numeric, flag or text

MsgNum

0 to 63, used internally by the 1757-ABRIO module

Len

Tag length, units are bytes for flag and text tags, floats for
numeric tags

Req count

Number of updates this tag has been accessed (read or written)

Avg Req Time

Average update time for this tag, in ms. This is the average of
the previous 64 updates.

Min Req Time

Minimum request time for this tag, in ms

Max Req Time

Maximum update time for this tag, in ms

Time out

The message time-out, in ms

Status

Active or Inactive

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