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Functions
5.1 Basic functions
The current system configuration is displayed on the corresponding display page (Expansion
Modules), stating the number, type and status of the connected modules:
● The I/O numbering is shown under each module.
● The status (activated / deactivated) of the I/O and of the communication channels is
indicated by the message displayed in negative.
5.1.5
Communication COMx
Apart from the RS485 port that is already included, no more than two additional
communication modules identified as COMn may be connected to the ATC6500. The
communications setup menu therefore contains three sections (n=1 ... 3) with parameters for
the configuration of the communication ports.
The communication channels are completely independent, both in terms of the hardware
(type of physical interface) and in terms of the communication protocol. The communication
channels are able to function simultaneously. Communication via the RS485 port is by
means of MODBUS RTU. The Ethernet expansion module allows communication via
MODBUS TCP.
For additional information on programming by means of MODBUS, please refer to chapter
P10 – Communications (Page 177).
Addressing of the communication interfaces
The integral RS485 port is set to n=1 at the COMn location.
Depending on their location on the device, the additional expansion modules with
communication are set as n=2 for the second communication module and n=3 for the third
communication module.
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3KC ATC6500 transfer control device
Manual, 05/2019, L1V30538268002A-01
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