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Jetter AG
7 Programming
7.1 Addressing of I/O expansion modules
INFO
INFO
JX3-BN-EC User Manual
Each JX3 I/O module has over 10,000 local module registers and, depending on
the module type, a certain number of digital inputs and outputs.
These local module registers and I/Os are mapped to register numbers and I/O
numbers in the controller. These numbers let you read and write process, config-
uration, and diagnostic data of an expansion module. These numbers can be ac-
cessed in the application program of the controller, in a setup pane of JetSym or
via user interface.
The number of a controller register to which a module register has been mapped
is influenced by the following parameters:
■
Controller model
■
Type of connection between controller and expansion module
■
Direct connection to a local controller or expansion module
■
Remote connection via Ethernet
■
Remote connection via EtherCAT
■
Position and number of expansion modules in the system
The number of expansion modules that can be connected to a controller de-
pends on the type of expansion modules. After 8 expansion modules max., a
power supply module must be inserted.
Number of connectable expansion modules
You can calculate the exact amount of connectable expansion modules by
means of the JX3-sysbus_configurator_xxx_e which is available for download
from our Homepage.
Connecting third-party hardware
You can also use the JX3-BN-EC in combination with a controller that was not
developed and produced by der Jetter AG. See also
ries
[} 29].
®
EtherCAT® object directo-
Programming | 7
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