BA02237C/07/EN/01.22-00
71561678
2022-02-28

ProductsSolutions

Valid as of version
02.02.00

Operating Instructions
Liquiline Control CDC90
Data transmission via
analog communication 0/4 to 20 mA

ServicesLiquiline Control CDC90

Table of contents

Table of contents
1

About this document . . . . . . . . . . . . . . . . 4

1.1
1.2
1.3
1.4
1.5

Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Symbols on the device . . . . . . . . . . . . . . . . . . . 4
Documentation . . . . . . . . . . . . . . . . . . . . . . . . 4
List of abbreviations . . . . . . . . . . . . . . . . . . . . . 5

2Basic safety instructions . . . . . . . . . . . . 6

2.1
2.2
2.3
2.4
2.5
2.6

Requirements for the personnel . . . . . . . . . . . . 6
Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . 6Workplace safety . . . . . . . . . . . . . . . . . . . . . . . 6
Operational safety . . . . . . . . . . . . . . . . . . . . . . 6Product safety . . . . . . . . . . . . . . . . . . . . . . . . . 8IT security . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

Electrical connection . . . . . . . . . . . . . . . . 93.1Connecting the communication interfaces . . . . . 9

4System integration . . . . . . . . . . . . . . . . 10

4.1

Integrating analog communication into thesystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Endress+Hauser103About this document

Liquiline Control CDC90

1

About this document

1.1

Warnings

Structure of information

Meaning

LDANGERThis symbol alerts you to a dangerous situation.
Failure to avoid the dangerous situation will result in a fatal or serious
injury.

Causes (/consequences)If necessary, Consequences ofnon-compliance (if applicable)‣ Corrective action

LWARNING
Causes (/consequences)If necessary, Consequences ofnon-compliance (if applicable)‣ Corrective action

LCAUTION
Causes (/consequences)If necessary, Consequences of
non-compliance (if applicable)‣ Corrective action
NOTICE
Cause/situation
If necessary, Consequences ofnon-compliance (if applicable)‣ Action/note

1.2

This symbol alerts you to a dangerous situation.
Failure to avoid the dangerous situation can result in a fatal or serious
injury.

This symbol alerts you to a dangerous situation.
Failure to avoid this situation can result in minor or more serious injuries.

This symbol alerts you to situations which may result in damage toproperty.

Symbols
Additional information, tips
Permitted or recommended
Not permitted or not recommended
Reference to device documentation
Reference to page
Reference to graphic

1.3

Result of a step

Symbols on the device
Reference to device documentation
Do not dispose of products bearing this marking as unsorted municipal waste. Instead, return themto the manufacturer for disposal under the applicable conditions.

1.4Documentation

This supplementary documentation must be used only in conjunction with a Liquiline
Control CDC90 with analog communication.
This supplementary documentation is an integral part of the Operating Instructions andprovides additional information on the use of the device with analog communication.
More information can be found in the following Operating Instructions:Operating Instructions CDC90 BA01707C
It is assumed that the reader has basic knowledge in this area.

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Liquiline Control CDC90

About this document

This document is aimed at individuals who are incorporating the CDC90 into a controlsystem via analog communication. It is assumed that the reader has basic knowledge ofthe CM44 transmitter.

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1.5

List of abbreviations

n/a

Not applicableNaN

Not a number (IEEE-754, 7Fh A0h 00h 00h)

ENP

Electronic name plate

I&M

Identification & MaintenanceAI

Analog Input (PA Profile function block)DI

Discrete Input (PA Profile function block)

AO

Analog Output (PA Profile function block)

DO

Discrete Output (PA Profile function block)

DCS

Distributed control system

5Basic safety instructions

Liquiline Control CDC90

2Basic safety instructions

2.1

Requirements for the personnel• Installation, commissioning, operation and maintenance of the measuring system may
be carried out only by specially trained technical personnel.
• The technical personnel must be authorized by the plant operator to carry out thespecified activities.
• The electrical connection may be performed only by an electrical technician.
• The technical personnel must have read and understood these Operating Instructions
and must follow the instructions contained therein.
• Faults at the measuring point may only be rectified by authorized and specially trained
personnel.
Repairs not described in the Operating Instructions provided must be carried out only
directly at the manufacturer's site or by the service organization.

2.2

Intended use

Liquiline Control CDC90 is a fully automatic measuring, cleaning and calibration system
for Memosens sensors. The system is fully equipped with power supply cables and a hosesystem.

2.2.1

Non-intended use

Use of the device for any purpose other than that described, poses a threat to the safety ofpeople and of the entire measuring system and is therefore not permitted.
The manufacturer is not liable for damage caused by improper or non-designated use.

2.3

Workplace safety

As the user, you are responsible for complying with the following safety conditions:• Installation guidelines• Local standards and regulations• Regulations for explosion protection
Electromagnetic compatibility• The product has been tested for electromagnetic compatibility in accordance with theapplicable international standards for industrial applications.
• The electromagnetic compatibility indicated applies only to a product that has beenconnected in accordance with these Operating Instructions.

2.4

Operational safety

Before commissioning the entire measuring point:
1.

Verify that all connections are correct.

2.

Ensure that electrical cables and hose connections are undamaged.

3.

Do not operate damaged products, and protect them against unintentional operation.

4.

Label damaged products as defective.

During operation:‣ If faults cannot be rectified:products must be taken out of service and protected against unintentional operation.
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Liquiline Control CDC90

Basic safety instructions

LCAUTION
Programs not switched off during maintenance activities.
Risk of injury due to medium or cleaning agent!
‣ Quit any programs that are active.
‣ Switch to the Service Mode before you remove sensors from the assembly.
‣ If you need to test the cleaning function while cleaning is in progress, wear protective
clothing, goggles and gloves or take other suitable measures to protect yourself.

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7Basic safety instructions

Liquiline Control CDC90

2.5

Product safety

2.5.1

State-of-the-art technology

The product is designed to meet state-of-the-art safety requirements, has been tested, andleft the factory in a condition in which it is safe to operate. The relevant regulations andinternational standards have been observed.

2.6

IT security

We only provide a warranty if the device is installed and used as described in theOperating Instructions. The device is equipped with security mechanisms to protect itagainst any inadvertent changes to the device settings.
IT security measures in line with operators' security standards and designed to provide
additional protection for the device and device data transfer must be implemented by theoperators themselves.

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Liquiline Control CDC90

Electrical connection

3

Electrical connection

3.1

Connecting the communication interfaces

Installation and wiring is described in the Operating Instructions ofLiquiline Control CDC90.

3.1.1

Notes

The device starts when the supply voltage is applied. This process can take up to twominutes, depending on the device configuration. Communication with the device is notpossible during the start-up process.

3.1.2

Connection with the CDC90 control unit

AOAI

1

2

3A0044848

123Analog output in BASE2-E
Analog input 2AI
Process control system, PCS

1) The second analog output in BASE2-E is used to monitor and receive feedback from theCDC90.
2) The second analog input (2AI module) is used to send specific current values in mA.
Connecting analog communication
1.

Unscrew the housing from the CDC90 control unit. See Operating Instructions
BA01707C.

2.

Connect a 2-wire cable from the analog output AI of the control system (3) to theanalog input of the 2AI module (2) in the CDC90 control unit.

3.

Connect a 2-wire cable from the analog input AI of the control system (3) to theanalog input of the BASE2-E module (1) in the CDC90 control unit.

Current input 4:1 are internal for the soft keys andCurrent output 1:1 for the status of the LEDs. These settings must not be changed.
For more details on analog input and output characteristics of the CM44x transmitter,
please refer to the Operating Instructions of the CM44x (BA00451C).

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9System integration

Liquiline Control CDC90

4System integration

The internal analog input of the CDC90 control unit is used to send commands to theCDC90. Conversely, the analog output of the CDC90 control unit is used to receive analog
feedback signals from the CDC90.

4.1

Integrating analog communication into the system

4.1.1

Configuration of the CDC90 control unitThe settings of the CDC90 control unit are preconfigured. So that the configuration can bereviewed and changed, the configuration is described as follows.
1.

Adjust the settings via the remote display or web server access.

2.

For web server access, enter 192.168.0.4 as the IP address.

See under Menu/Setup/Inputs/Current input 4:1; these values are reserved for the soft
keys of the CDC90 control unit and must not be changed.
See under Menu/Setup/Inputs/Current input 4:2; this current input is linked internallyto the Liquiline Control CDC90 via Modbus TCP. The configuration of the Modbus AI mustnot be changed.
See under Menu/Setup/Outputs/Current output 1:1 ; these values are reserved for theLED display of the CDC90 control unit and must not be changed.
The configuration of the Modbus AO must not be changed under Menu/Setup/Outputs/Current output 1:2. The Current output 1:2 is linked internally to the Liquiline Control
CDC90 via Modbus TCP.

4.1.2

Configuration in Liquiline Control CDC90

A0041805

To start remote control of the CDC90, the CDC90 must be set to the Remote access mode.
It is possible to read the CDC90 parameters in any mode.
1.

In the CDC90, go to Application/Communication.

2.

Select Analog.

3.

Press Accept to confirm.
Only fieldbus communication or analog communication is used to send commands to
the Liquiline Control CDC90 or to read the values.

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Liquiline Control CDC90

System integration

4.1.3

Parameter tables

Input and output parameters
The following table provides an overview of the possible commands that CDC90 canreceive via the analog input. Once a corresponding current signal has been sent andaccepted, the CDC90 responds with the corresponding current level.
Commands[mA]

Description

Response from CDC90 [mA]4

No command active
Do not select a program

4No program is active
No program is selected5Start program

5Program is started

6

Pause program(currently not supported)

6

Program is paused(currently not supported)

7

Stop program

7

Program is stopped

8

Not defined8

Program is canceled9

Not defined9Program is quit successfully10

Not defined10

CDC90 has a failure alarm

11

Select program 801

11Program 801 is selected

12Select program 802

12Program 802 is selected

13Select program 803

13Program 803 is selected

14Select program 804

14Program 804 is selected

15Select program 805

15Program 805 is selected

16Select program 806

16Program 806 is selected

17

Select program 807

17Program 807 is selected

18

Select program 808

18Program 808 is selected

19

Select program 809

19Program 809 is selected

20

Select program 810

20

Program 810 is selected

Program control‣A0041775

1

Overview of programs (20 programs are shown)

The program IDs are in the "CDC90 program configuration tool" or can be found on thelocal display in the User Guidance/Programs menu.

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11System integration

Liquiline Control CDC90

A0041776

2Programs

Each program must be selected before starting. An example of controlling program 801:
1.

Set AI to 4 mA.
 Initialization in progress.

2.

Wait for confirmation AO equal to 4 mA.

3.

Set AI to 11 mA.
 Program selection in progress.

4.

Wait for confirmation AO equal to 11 mA.

5.

Set AI to 5 mA.
 Program starts.

After the program starts, the analog output outputs 5 mA as long as the program isrunning. When the program is finished, the analog output outputs 9 mA.
With short programs (e.g. valve travel), the AO may output 9mA.
After quitting a program successfully, a new program can be selected and started
immediately.
If the program is stopped or is aborted due to an error:
1.

First initialize the system by sending 4 mA.

2.

Select and start a new program.
With analog communication, only the first 10 programs are controlled.

Diagnostics
Diagnosis via digital inputs 11-16:
DO

Description

Assignment

11

Operating mode

Setting, if DO11 = 0 and DO12 = 0
Manual, if DO11 = 0 and DO12 = 1
Automatic, DO11 = 1 and DO12 = 0
Remote access, DO11 = 1 and DO12 = 1

13Assembly 10 = service, 1 = measure

14

Assembly 2

0 = service, 1 = measure

15

Program

0 = no program, 1 = program active

16

Alarm

0 = alarm, 1 = no alarm

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