Liquiline Control CDC90

10

Endress+Hauser

Communication and data

processing

Types of communication

Several digital communication protocols are available to enable the Liquiline Control CDC90 to be

integrated into a customer's digital infrastructure (process control system).

The data connection is established and managed exclusively via the internal controller of the CDC90,

and not via the fieldbus module of the integrated Liquiline transmitter.

Additional Special Documentation is available for the integration process. However, if analog signals

are used (current inputs/outputs), the current input and output modules of the Liquiline transmitter

act as the interface to the customer's control system / PCS. Output 1:2 on the base module and input

4:2 on the AI module are preconfigured. Only the current outputs on the 4 AO module need to be

configured for measured value transmission.

Liquiline Control CDC90 has an internal communication process via Modbus, which is designed

exclusively to ensure safe and reliable processing and the trouble-free operation of the device. These

communication processes are not designed for external communication with the customer.

Therefore, with the exception of the Liquiline transmitter's web server functionality, do not connect

the interfaces of the transmitter to other interfaces.

You can choose from the following communication options in the CDC90 control unit:

• Analog current output, current signals (4 to 20 mA)

Via AO modules in the CDC90 control unit. The settings can be made via the web server or local

display.

Power transmission is via the current input/output modules of the CDC90 control unit. The input/

outputs are already preconfigured.

• EtherNet/IP (adapter)

• PROFIBUS DP (slave)

• Modbus TCP (server)

• PROFINET (device)

More detailed information on fieldbus communication is provided on the product pages on the

Internet:

• EtherNet/IP (adapter) via Modbus TCP - EtherNet/IP gateway: BA02241C

• Modbus TCP (server): BA02238C

• PROFIBUS DP (slave) via Modbus TCP - PROFIBUS DP gateway. BA02239C

• PROFINET (device) via Modbus TCP - PROFINET gateway: BA02240C

Dependability

Reliability

• Level and consumption indicator

The level and amount of buffer or cleaning solution are displayed.

• Information about the current program step

Transparent status indication with time information

• Sensor verification

Sensor accuracy is verified. If a tolerance range is exceeded during calibration, Liquiline Control

rejects the calibration values. Therefore you are guaranteed that your measured value is always

accurate.

• Seal condition monitoring

Monitoring of the seals on the assembly, pumps, water valve and additional valves. With this

function, the system can predict when the assembly will require new sealing rings.

• System pressure monitoring to activate the assembly and pumps. If the pressure drops below the

minimum level, the system signals an alarm.

Memosens MEMO SENS

Memosens makes your measuring point safer and more reliable:

• Non-contact, digital signal transmission enables optimum galvanic isolation

• Completely watertight

• Sensor can be calibrated in a lab, thus increasing the availability of the measuring point in the

process

• Maintenance thanks to recording of sensor data, e.g.:

Total hours of operation

Input

Measured variables

→ Documentation of the connected sensor