Endress+Hauser Liquiline CM442R, Operating Instructions Manual

Page: 77 / 172

Liquiline CM442R/CM444R/CM448R Operation
Hauser
77
PROFIBUS variables (PROFIBUS → device)
Not in the "Menu/Setup/Outputs" menu
‣
A maximum of 4 analog (AO) and 8 digital (DO) PROFIBUS variables are available as
measured values in the controller, limit switch or current output menus.
‣
Example: Using an AO or DO value as the set point for the controller
– "Menu/Setup/Additional functions/Controller 1" menu
– In the menu mentioned, define PROFIBUS as the data source.
– Select the desired analog output (AO) or digital output (DO) as the measured value.
Additional information is provided on the product pages on the Internet (SD01188C).
10.4.5 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 sensor inputs and 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.
Additional information is provided on the product pages on the Internet (SD01189C).
10.4.6 EtherNet/IP
Specify which process values should be output via EtherNet/IP communication.
You can define a maximum of 16 analog device variables (AI):
‣
Define the data source. You can choose from sensor inputs, binary inputs and controllers.
‣
From the source, select the measured value that should be output.
‣
Define how the device should behave in the event of a "Hold".
‣
In the case of controllers, also specify the type of actuating variable.
‣
Please note that if you select Hold behavior="Freeze", the system not only flags the status but
also actually "freezes" the measured value.
Furthermore you can define 8 digital device variables (DI):
‣
You only define the data source here. You can choose from relays, binary inputs and limit
contactors.
Additional information is provided on the product pages on the Internet (SD01293C).