ICP DAS USA PMC-523 Series, Руководство пользователя

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ICP DAS PMC-523x/PMC-224x/PMD Series User Manual
110
The settings are as follow:

Data Model: PMC/PMD offers 4 Data Model selections to
match the Modbus RTU Slave module configuration. Please
refer to the above section “The Coil Output Setting of Modbus
RTU Module” for detailed information. In this case please
select ”Discrete Input(1x)”.

Start Address: Allows to set up the starting address of the data
on the PMC/PMD that would be retrieved to the Discrete
Input(1x) on the Modbus RTU module.

Data Number: After finishing the Start Address setting, specify
the Data Number, it is the number of Discrete Input data that
would be retrieved from the Start Address.
 After finishing the “Start Address” and “Data Number” setting,
click on “Add” button. A new Discrete Input address block will
be added to the Modbus address mapping table. All added
address blocks will be located in sequences staring from the
Starting Address(The address number on the first column of the
“Local Address” indicates the local Modbus address of
PMC/PMD to keep the Discrete Input data.).
Figure7-46 shows an example about Discrete Input setting for a
Modbus RTU module. The starting Modbus address of the
Discrete Input block is 10020(10000 + 20), it requires to set 6
continuous Discrete Input data in the setting. So that the
PMC/PMD can access the 10020, 10021, 10022, 10023, 10024,
and 10025 Discrete Input address of the module, and these
retrieved Discrete Input data will be kept in PMC/PMD Modbus
Address 10300, 10301, 10302, 10303, 10304 and 10305.
Figure7-46 : Discrete Input Setting Example for Modbus RTU Module