Rockwell Automation 2711 PanelView 550/900 Profibus Communications User Guide - Manual (Page 33)

PROFIBUS DP Communications 33
Publication 2711-6.3
The following pages provide information relating only to
PROFIBUS DP communications. For all other operating problems,
refer to the PanelView user manual (Publication 2711-6.1). If the
problem has an associated error or warning message, refer to the
sections on Error and Warning Messages.
!
ATTENTION: The PanelView contains line voltages.
Make sure that no objects are inserted or fall into the
terminal through the ventilation slots. Always
disconnect power when checking wiring connections.
Failure to take adequate precautions may result in
severe electrical shock.
The following table lists error and warning messages specific to
PROFIBUS DP communications. For all other messages, refer to the
PanelBuilder User Manual (Publication 2711-6.0). There are three
types of codes:
•
Reminder Messages indicate a minor fault or mistake. Reminder
messages appear when an invalid operation is attempted.
•
Warning Messages indicate an operation that may produce
undesirable results. You must respond to (acknowledge) a
warning message.
•
Critical Messages indicate there is a condition which prevents
further operation. The current application will halt. The terminal
must be reset to recover from this type of error.
Alerts
Alert Number Meaning Type Corrective Action(s)
0
Comms OK. Slave in data–exchange state, locked.
No message will appear in this case!
None
1
The application has not defined any external channels.
Therefore, the PanelView will not start communications
with the PROFIBUS network. Note: The comms “sta-
tus” will indicate “OK” since this is not an error. Displayed on
the
configuration
screen only.
1. Make sure a PanelView application is loaded.
2. Verify that the PanelView application contains
data exchange modules.
2
Services requested by the DP Master are not sup-
ported. The slave is unlocked.
Comms
Warning
1. The PanelView does not support freeze mode or
synch mode. Make sure your DP Master does
not request these.
3
The DP Master is no longer communicating with the
PanelView. Comms
Warning
1. Check cable connections.
2. Make sure DP Master is operating.
4
Comms enabled. The DP Master is not sending data.
The slave is unlocked. Comms
Warning
1. Make sure the DP Master is sending data correctly.
5
A DP Master is on the network, but is not communicat-
ing with the PanelView.
Comms
Warning
1. Make sure the PanelView address is the one the
DP Master expects.
2. If multiple DP Masters are on the network, make
sure the DP Master connected to the PanelView is
operating.
6
PROFIBUS DP watchdog time–out occurred. The slave
is unlocked. Comms
Warning
1. Check cable connections.
2. Make sure DP Master is operating.
Troubleshooting
Terminal Reminder, Error,
and Warning Codes