Table of Contents
Advertisement
10 Programming
Registers located on JX3 modules
Introduction
Acyclic network access
232
The controller handles access via network registers to module registers of
JX3 modules of a remote node (second part of the register prefix
mm = 02 ... 17) in a specific way:
If ...
... the network register has been
configured for cyclic data interchange,
... the network register has not been
configured for cyclic data interchange,
For acyclic register access to a remote JX3 module, the controller uses the
first part of the register prefix as an index to the tables containing the
IP addresses and IP ports. The values read out of these tables are used by
the controller to address the bus node in the network. For further information
on registers 235000 ff, please refer to Network registers - IP address and
IP port (see page 230).
The controller adds the register offset for the JX3 system bus of a remote
node (100,000,000) to the second part of the register prefix and the module
register number (no. 3 and 5 in the addressing scheme (see page 230)). The
controller uses the resulting number to address the register.
192.168.10.208
235000
192.168.10.209
235001
192.168.8.105
235.002
192.168.10.14
235.003
192.168.12.200
235.004
...
235400
235401
235402
235403
235404
...
GNN=003
1003021421
+
100.000.000
... the controller accesses the locally
stored register value.
... the controller executes acyclic network
access.
...
50000
50000
51000
50000
52000
...
... then ...
Jetter AG
Advertisement
Table of Contents
