IFM TCC8 Series Bedienungsanleitung

Operating instructions

Temperature transmitter

TCCxxx

80285272 / 00 02 / 2021

Contents

1 Preliminary note��3

1�1 Key to the symbols ��3

2 Safety instructions ��3

3 Getting started ��4

4 Functions and features ��4

5 Function��5

5�1 IO-Link ��5

5�2 Diagnostic signal ��6

5�3 Analogue signal ��6

5�4 Diagnostic function ��8

5�4�1 Calibration check function ��8

5�4�2 Diagnostic messages ��9

5�5 Simulation mode��10

5�6 Binary data transmission (BLOB) �� 11

6 Installation�� 11

6�1 Use in hygienic areas to 3-A�� 11

6�2 Use in hygienic areas to EHEDG ��12

6�3 Units with clamp process connection ��13

6�4 Units with process connection G ½ sealing cone ��14

6�4�1 Flush mount hygienic zero-leak using PEEK gasket ��14

6�4�2 Flush mount zero-leak using metal-to-metal seal��14

6�5 Units for process adaptation via clamping ring��15

7 Electrical connection��16

8 Operating and display elements ��17

9 Parameter setting ��17

9�1 Parameters ��18

9�2 Analysis functions ��18

10 Operation��19

11 Technical data ��19

12 Troubleshooting ��19

13 Maintenance, repair and disposal��21

1 Preliminary note

Technical data, approvals, accessories and further information at www�ifm�com�

1.1 Key to the symbols

►Instruction

> Reaction, result

[…] Designation of keys, buttons or indications

→Cross-reference

Important note

Non-compliance may result in malfunction or interference�

Information

Supplementary note�

2 Safety instructions

• The device described is a subcomponent for integration into a system�

- The manufacturer is responsible for the safety of the system�

- The system manufacturer undertakes to perform a risk assessment and to

create a documentation in accordance with legal and normative requirements

to be provided to the operator and user of the system� This documentation

must contain all necessary information and safety instructions for the operator,

the user and, if applicable, for any service personnel authorised by the

manufacturer of the system�

• Read this document before setting up the product and keep it during the entire

service life�

• The product must be suitable for the corresponding applications and

environmental conditions without any restrictions�

• Only use the product for its intended purpose (→ Functions and features).

• Only use the product for permissible media (→ Technical data).

• If the operating instructions or the technical data are not adhered to, personal

injury and/or damage to property may occur�

14 Factory setting ��21

• The manufacturer assumes no liability or warranty for any consequences

caused by tampering with the product or incorrect use by the operator�

• Installation, electrical connection, set-up, operation and maintenance of the

product must be carried out by qualified personnel authorised by the machine

operator�

• Protect units and cables against damage�

3 Getting started

The unit can be used without any further parameter setting with the settings

described under → 14 Factory setting�

If necessary, the factory setting can be changed via the IO-Link interface:

►Connect unit to PC to set the parameters via the IO-Link interface�

►Set the standard unit of measurement�

- [Uni]: °C or °F

►Set the analogue signal�

- [OU2]: I = 4��20 mA or Ineg = 20��4 mA or OFF = output off

- [ASP] and [AEP]: Scaling of the measuring range�

►Configure the analogue signal for the alarm�

- [FOU2]: On = 21�5 mA or OFF = 3�5 mA

►Set the calibration check limit�

- [ccL]: Temperature deviation from which the unit provides a warning�

►Configure the switching logic for the alarm and the warning of the diagnostic

output�

- [P-n]: PnP or nPn

►Activate / deactivate the LED at the head of the unit�

- [LED]: ON = LED is on (green, blue, red) or OFF = LED off or Notification =

LED on for warnings and alarms only

►Finish parameter setting, install (→ 6), connect (→ 8) and set up the unit�

4 Functions and features

The unit detects the medium temperature and provides the measured value via an

analogue and/or a digital signal�

The unit features an integrated diagnostic function and a calibration check function

(→ 5.4.1)� The diagnostic messages are provided via an analogue signal or a

switching signal or as a digital communication signal via the IO-Link interface�

The unit has an LED that indicates deviations from normal operation via a colour

change (→ 5.4.2)�

5 Function

• The unit has an IO-Link interface�

• The unit is designed for three-wire operation� The following output signals are

available:

OUT1 (2 options):

- diagnostic signal

- IO-Link signal for temperature measurement and diagnostics

OUT2:

- analogue signal for temperature measurement and diagnostics

5.1 IO-Link

This unit has an IO-Link communication interface which enables direct access to

process and diagnostic data� In addition it is possible to set the parameters of the

unit while it is in operation� Operation of the unit via the IO-Link interface requires

an IO-Link master�

With a PC, suitable IO-Link software and an IO-Link adapter cable communication

is possible while the system is not in operation�

The IODDs necessary for the configuration of the unit, detailed information about

process data structure, diagnostic information, parameter addresses and the

necessary information about the required IO-Link hardware and software can be

found at www�ifm�com�

The IO-Link interface provides the following functions:

• Remote parameter setting of the unit�

• Noise immune process value transmission without measured value losses�

• Transmission of the parameter settings to other units of the same type or when

the unit is replaced�

• Simultaneous reading of the two temperature values (measuring element and

reference element), the diagnostic output (calibration check function) and the

device status�

• Paperless logging of parameter sets, process values and diagnostic

information�

5.2 Diagnostic signal

The diagnostic output is only used to provide warnings and alarms (→ data sheet

for the maximum nominal current of the switching output)�

The switching output is closed in normal operation (normally closed)� If the unit

detects a diagnostic case, the output opens�

The switching logic (PnP/nPn) and the calibration check limit (ccL) from which the

output switches can be set�

The diagnostic messages are defined and cannot be changed (→ 12)�

5.3 Analogue signal

The unit converts the measured temperature value into a temperature-proportional

analogue signal�

In addition the analogue output is used for diagnostics (→ 5.4 Diagnostic function)�

The transmission of the measured temperature value is interrupted for alarms

and an analogue signal according to NE43 of 3�5 mA (FOU2 = OFF) or 21�5 mA

(FOU2 = On) is provided� In case of warnings, the analogue signal continues to be

provided�

Depending on the parameter setting (→ 9) the analogue signal for values within

the measuring range is:

4��20 mA with setting [OU2] = I or

20��4 mA with setting [OU2] = Ineg�

The measuring range is scalable:

• [ASP] defines at which measured temperature value the analogue signal is 4

mA (OU2 = I) or 20 mA (OU2 = Ineg)�

• [AEP] defines at which measured temperature value the analogue signal is

20 mA (OU2 = I) or 4 mA (OU2 = Ineg)�

Minimum distance between [ASP] and [AEP] = 5 K�

If the measured temperature value is outside the scaled measuring range, the

analogue signal is 20...20.5 mA or 3.8...4 mA (→ Fig.1). When the measured

temperature value continues to increase or decrease, the analogue signal goes to

the value 3�5 mA or 21�5 mA�

160

3�5

21�5

FOU2 = OFF

FOU2 = On

20�5

3�8

I [mA]

-25 -10 150

MEW

200

cr�OLMAW

-60

cr�UL ASP AEP

T [°C]

Figure 1: output characteristics analogue output with factory setting

Setting [OU2] = I

Setting [OU2] = Ineg

MAW = initial value of the measuring range, MEW = final value of the measuring range,

ASP = analogue start point, AEP = analogue end point

cr�UL = below the measuring range, cr�OL = above the measuring range

5.4 Diagnostic function

The unit continuously checks the temperature measurement (→ 5.4.1 Calibration

check function) and detects further events� In case of deviations from normal

operation, a diagnostic message is provided (→ 5.4.2)�

5.4.1 Calibration check function

By measuring with two different, thermically coupled sensor elements (measuring

element and reference element) the unit automatically detects temperature

differences during temperature measurement�

The process value is measured by the measuring element and provided via the

analogue output�The reference value is used for comparison purposes and to

verify the process value� If the temperature difference between the process value

and the reference value exceeds the value set as calibration check limit [ccL], a

warning is triggered: The LED changes to blue and the diagnostic output opens�

T [°K]

CCL

Figure 2: Calibration check function

Example: Measuring element (1) measures 61�05 °C, reference element (2) measures 60 °C�

Setting ccL = 1 K results in a warning�

If a warning is triggered, the LED remains blue, even if the temperature

difference drops below the ccL value again� Corrective measures:

Check whether the sensor is to remain in use in the process or to be

replaced or do as follows:

►Increase the ccL value so that the LED goes back to green�

> The diagnostic output closes�

> The ccL modification is written to the logbook (→ 5.6)�

If the reference element fails, the calibration check function fails as well and

the LED changes to blue�

Setting range ccL →Technical data.

Due to the usual manufacturing tolerances a temperature difference of max�

0�1 K can also occur with new sensor elements� This does not affect the

calibration check function�

To ensure that the calibration check function detects no other influences

except the temperature difference between the sensor elements, an internal

delay time of 10 minutes has been set�

5.4.2 Diagnostic messages

Diagnostic messages are output as follows:

• LED signal:

The LED shows all warnings and alarms by means of a colour change

(blue = warning; red = alarm)�

• Diagnostic signal:The diagnostic output provides all warnings and alarms via a

switching signal�

• Analogue signal:The analogue output only provides alarms�In case of an alarm

the analogue signal goes to 3�5 mA or 21�5 mA�

• IO-Link:If the IO-Link interface is used, all diagnostic messages are displayed

via the connected software or provided to the higher-level controller� In

addition, a diagnostic bit is provided that corresponds to the behaviour of the

physical switching output�

List of all diagnostic messages readable via IO-Link → IO Device

Description (IODD) at www�ifm�com�

Diagnostics LED Diagnostic

output

Analogue

output

normal oper-

ation

• temperature deviation between

measuring element and

reference element ≤ calibration

check limit (ccL)

• no error

green 4��20 mA1)

warning

• temperature deviation between

measuring element and

reference element > calibration

check limit (ccL)

• failure reference element

blue 4��20 mA1)

alarm

• failure measuring element or

failure of both sensor elements

other errors → 12

red 21�5 mA2)

Table 1: diagnostic function

1) For [OU2] = Ineg: 20��4 mA

2) For [FOU2] = OFF: 3�5 mA

Warnings are provided with a delay time of 10 minutes� Alarms are provided

immediately�

5.5 Simulation mode

Normal operation and diagnostic function (warnings and alarms) can be simulated

based on freely selected parameters using this function�

►Set the requested duration of the simulation with [S�Tim]�

►Set a simulation value for the measuring element or select the simulation of a

fault of the measuring element with [TEMP]�

►Set a simulation value for the reference element or select the simulation of a

fault of the reference element with [REF_TEMP]�

►Write values to the unit�

►Click on [Start simulation]�

> The simulation runs for the duration set under [S�Tim]�

►Click on [Stop simulation] to abort the simulation�

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