Monitoring The Network; Monitoring The Master Unit And The Network - Omron CJ Series Operation Manual

5-7

Monitoring the Network

5-7-1

Monitoring the Master Unit and the Network

Both the CJ1W-PRM21 Master DTM and the Generic Slave DTM provide special user interfaces to
facilitate status debugging and diagnostics determination. This section and the next will discuss the
use and the features of these diagnosis user interfaces.
 CJ1W-PRM21 Master DTM Diagnosis User interface
The CJ1W-PRM21 Master DTM Diagnosis - Monitor User Interface provides a means to
• Monitor the CJ1W-PRM21 Master Unit status.
• Monitor an overview of the status of all allocated slave devices.
• Monitor standard slave diagnostics.
• Monitor the Unit's Error Log (The Error Log is discussed in section 5-7-3 Using the Error Log).
The information is obtained directly from the Master Unit. The Master DTM reads the Unit's words
from the CPU memory as well as the standard slave device diagnostics bytes as received by the
Master Unit.
To open the CJ1W-PRM21 Master DTM Diagnosis - Monitor User Interface, perform the following
steps.
1
Make sure the Master DTM is online with the Master Unit. To go online, select the DTM in the
Network view and perform one of the following actions.
• Select the Device - Go Online option from the main menu or the DTM context menu
• Select the
2
A communication channel will be opened through CX-Server. The name of the DTM in the Net-
work view will turn to italic font to indicate that the Unit is online.
3
From the context menu select the Diagnosis option. The DTM's Diagnostics User Interface will
be displayed.
4
Select the Monitor tab for status monitoring.
 Using Auto-Update or Manual Refresh
The information displayed in the CJ1W-PRM21 Master DTM Diagnosis - Monitor User Interface can
be updated either Automatically or Manually.
• Automatic update: Select the Automatic checkbox in the upper right corner of the Monitor tab.
The refresh cycle will be approximately 0.5 to 1 second depending on the PC System. The
Manual button will be disabled.
• Manual update: Press the Manual button in the upper right corner of the Monitor tab to force
a refresh of the window contents.
 Reading the Master Unit's Status
The Master status sub-tab displays the status of the Master Unit itself. The indicators are directly
related to the four status words of the Unit (see sections 4-2-3 to 4-2-6). They can be used to
• Obtain the status of the Master Unit and the network.
CJ-series PROFIBUS Master Unit Operation Manual for NJ-series CPU Unit (W509)
button from the Tool Bar.
5 Operation
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