PLX51-HART-4I / PLX51-HART-4O
♦
HART Input/Output
Diagnostics
Multidrop Field Devices
User Manual
ProSoft Technology, Inc.
Page 97 of 127
Class 1 Forward Open
Count
The number of Class 1 Forward Open (connection establishment)
messages sent.
Class 3 Forward Open
Count
The number of Class 3 Forward Open (connection establishment)
messages sent.
Class 1 Forward Close
Count
The number of Class 1 Forward Close (connection termination)
messages sent.
Class 3 Forward Close
Count
The number of Class 3 Forward Close (connection termination)
messages sent.
Class 1 Connection Count The current number of active Class 1 connections.
Class 3 Connection Count The current number of active Class 3 connections.
5.2.2 Logix Statistics
Figure 5.6 - Logix Statistics
Table 5.4 - Logix Statistics
Statistic
Description
Current Class 3
Connections
The number of current open class 3 connections.
Connection Failures
The number of failed attempts at establishing a class 3 connection with
a Logix controller.
Tag Not Exist Errors
The number of tag read and tag write transactions that failed due to the
destination tag not existing.
Privilege Violation Errors
The number of tag read and tag write transactions that failed due to a
privilege violation error.
This may be caused by the External Access property of the Logix tag
being set to either None or Read Only.
Tag Reads
The number of tag read transactions executed by the PLX51-HART-4x
module.
Tag Writes
The number of tag write transactions executed by the PLX51-HART-4x
module.
CIP Timeout
This count increases when no response was received for the Tag
Read/Write.
ENIP Retries
This count increases when no response was received from the Logix
Controller by the time the ENIP timeout is reached.