Doc.Id. SCM-1200-093
Anybus Communicator for Modbus Plus
Doc.Rev. 3.01
Chapter 10
10. Subnetwork Monitor
General
The Subnetwork Monitor is intended to simplify configuration and troubleshooting of the subnetwork.
Its main function is to display the data allocated for subnetwork communication and detect if any area
has been allocated twice (i.e if a collision has occurred).
All configured nodes, and their transactions, are listed in the middle of the screen (B). Selecting and de-
selecting single transactions makes it possible to view any combination of allocated data.
Note:
The subnetwork monitor has a negative influence on the overall performance of the gateway.
Therefore the monitor functionality should be used with care.
Operation
A: Start Network & Stop Network Icons
These icons controls the subnetwork activity. To stop all subnetwork
activity, click on the red light. To start the subnetwork again, click on
the green light.
B: Nodes / Transactions
To view data blocks associated with a transaction, select the transaction in the list. The corre-
sponding data will then appear in the Monitor Section (C).
C: Monitor Section
This section visualizes how data is allocated in the Input, Output and General Data areas.
Color
Meaning
White
Not allocated.
Yellow
Data allocated by a Response or Consume transaction.
Blue
Data allocated by a Query or Produce transaction
Red
Collision; area has been allocated more than once.
Grey
Reserved (illustrates memory consumption, area can be allocated if necessary)
Green
Data allocated by Trigger byte, Transmit/Receive Counter, or Control/Status Registers.
A
B
C
Start
Stop
Summary of Contents for Communicator Modbus plus
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