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JX3-THI2-RTD-EI User Manual
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7 Programming
7.1 Addressing within the system
Each expansion module has got 10,000 module registers.
These module registers are mapped to registers in the controller. Only controller
registers let you read and write process, configuration, and diagnostic data of an
expansion module. Controller registers can be accessed in the application pro-
gram 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 type
■
Type of connection between controller and expansion module
■
Position and amount of expansion modules in the system
The amount of expansion modules which can be connected to a controller de-
pends on the type of the expansion module. After 8 expansion modules max.,
a power supply module must be inserted.
2
3
4
1
Fig. 10:
Example: System overview of a controller together with various expansion modules
1
Controller
2
First expansion module
3
Power supply module
4
Further expansion modules
INFO
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
INFO
For more information on this subject refer to the application-oriented manual
"JX3 System" available for download on our