Liquistation CSF48 Outputs
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5.6 Modbus RS485 and Modbus TCP
Specify which process values should be output via Modbus RS485 communication or via Modbus
TCP.
In the case of Modbus RS485, you can switch between the RTU and the ASCII protocol.
You can define a maximum of 16 device variables:
‣ Define the data source. You can choose from the sensor inputs and the controllers.
‣ From the source, select the measured value that should be output.
‣ Define how the device should behave in the event of a "Hold".
‣ The configuration options for "Source of data", "Measured value" and "Hold behavior" are
identical to those described in the "Outputs/Current outputs" section. Please refer to this
section for more information.
‣ Please note that if you select Hold behavior="Freeze", the system not only flags the status but
also actually "freezes" the measured value.
More information is provided in the "E+H Liquiline CM44x MODBUS Guideline" document.
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