ICP DAS USA PMC-523 Series, Руководство пользователя

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ICP DAS PMC-523x/PMC-224x/PMD Series User Manual
108
Data Model
The Modbus Address of
Modbus RTU Slave Modules
Coil Output 0xxxx
Discrete Input 1xxxx
Input Register 3xxxx
Holding Register 4xxxx

Start Address: Allows setting up the starting address of Coil
Output (0x) on the Modbus RTU Slave module you would like
to retrieve.

Data Number: After finishing the Start Address setting, specify
the Data Number, it is the number of Coil Output data you
would like to retrieve from the Start Address.
 After finishing the “Start Address” and “Data Number” setting,
click on “Add” button. A new Coil Output 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 of the Coil Output (The address number on the first
column of the “Local Address” indicates the local Modbus
address of PMC/PMD to keep the Coil Output data.).
Figure7-44 is an example about Coil Output setting for a
Modbus RTU Slave module. The starting Modbus address of
the Coil Output block is 00050(00000 + 50), it requires to set 4
continuous Coil Output data in the setting. So that the
PMC/PMD can access the 00050, 00051, 00052 and 00053 Coil
Output address of the module, and these retrieved Coil Output
data will be kept in PMC/PMD Modbus Address 00300, 00301,
00302 and 00303.
Figure7-44 : Coil Output Setting Example for Modbus RTU Module