Jetter JC-120MC, User Manual

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Jetter AG 259
JC-120MC Programming
Error message on part of a subscription
If a subscriber has not received any process data from the assigned publisher
before timeout, the subscriber will generate an error. The subscriber for the
subscription of which the error has been generated, can run either on a
controller or on a network node. The remote network node is a JX3-BN-ETH,
for example.
The error may be caused as follows:

Communication with the network client providing the process data is
terminated.
The operating system of the device responds to the error by taking the
following steps:
Step Description
1 Sets bit 1 in R 250000.
2
Writes the subscription ID to R 250002.
3 Sets flag 2081.
4
Writes value 11103 and the ID to the error buffers.
The error buffer can be accessed via registers 380000 ff. (error history).
5
Writes the GNN of the network node communication with which has been
terminated to R 254001.
6
Writes the IP address of the network node communication with which has
been terminated to R 254002.
7
Writes the port number of the network node communication with which has
been terminated to R 254003.
8 If ... ... then ...
... flag 2080 is set, ... bit 3 is set in R 210004 and
R 200008. The red status LED of
the controller is lit.
By means of NetCopy commands, you can precisely locate the error and fix
the root cause. This works, because GNN, IP address and port number of the
other network node are known.
To acknowledge the error, write command 110 to register 250001.
Detecting the error
Root cause of the error
Response of the device
to this error
Fixing the root cause
Acknowledging the error