Operation Liquiline CM44P
94 Endress+Hauser
Menu/Setup/Additional functions/Controller 1
1. In the specified menu, define PROFIBUS as the data source.
2. Select the desired analog output (AO) or digital output (DO) as the measured value.
Further information on "PROFIBUS" can be found in the Guideline for Communication
via PROFIBUS, SD01188C
Further information on "PROFINET" can be found in the Guideline for Communication
via PROFINET, SD02490C
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.
1. Define the data source.
You can choose from sensor inputs and controllers.
2. Select the measured value to be output.
3. Define how the device should behave in the hold state. (Configuration options of
Source of data, Measured value and Hold behavior) → 87
Please note that if you select Hold behavior = Freeze , the system not only flags the status
but also actually "freezes" the measured value.
Further information on "Modbus" can be found in the Guideline for Communication via
Modbus, 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).
1. Define the data source.
You can choose from sensor inputs and controllers.
2. Select the measured value to be output.
3. Define how the device should behave in the hold state. (Configuration options of
Source of data, Measured value and Hold behavior) → 87
4. In the case of controllers, also specify the type of manipulated variable.
Please note that if you select Hold behavior = Freeze , the system not only flags the status
but also actually "freezes" the measured value.
In addition you can define digital device variables (DI):
‣
Define the data source.
You can choose from relays, binary inputs and limit switches.
For further information on "EtherNet/IP", see the Guideline for Communication via
EtherNet/IP, SD01293C
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