PL1502 - Pressure sensor IFM - Free user manual and instructions

USER MANUAL PL1502 IFM

Operating instructions

Electronic pressure sensor with integrated temperature sensor

PL15

Contents

1 Preliminary note 4

1.1 Symbols used 4
1.2 Warnings.... 4

2 Safety instructions.... 5

2.1 Cybersecurity 5

3 Intended use.... 6

3.1 Application area 6

4 Function 7

4.1 IO-Link 7
4.2 IO-Link functions of the sensor 7

4.2.1 Internal unit temperature 7
4.2.2 Counter overpressure events 8
4.2.3 Counter overtemperature events.... 8
4.2.4 Optical localisation 8
4.2.5 Event logging 8
4.2.6 Operating hours counter 8
4.2.7 Defined state in case of a fault 8

4.3 Zero point behaviour of the analogue output and communication via IO-Link 8
4.4 Operating modes 9

4.4.1 2-wire operation 9
4.4.2 3-wire operation 9

5 Installation.... 10

5.1 Sealing versions 10

5.1.1 Flush mount zero-leak using metal-to-metal seal 10
5.1.2 Sealing flush mount via sealing ring 12
5.1.3 Rear sealing via sealing ring 13

6 Electrical connection.... 15
7 Parameter setting 16

7.1 Parameter setting via the memory plug.... 16
7.2 Scale analogue value 17

7.2.1 Manually scale analogue value 17
7.2.2 Scaling the analogue value using the teach function.... 17

7.3 Select the standard unit of measurement (option).... 17
7.3 Select the standard unit of measurement (option).... 17

7.4 Standard unit of measurement for medium temperature 17

7.5 Setting of the output function.... 17
7.6 User settings (optional) 17

7.6.1 Define the status of output 2 in case of a fault. 17
7.6.2 Set damping for the analogue output 18
7.6.3 Damping for the process data flow 18

7.7 Zero-point calibration 18
7.8 Diagnostic functions 18

7.8.1 Read min/max values for the system pressure 18
7.8.2 Read min/max values for the medium temperature....19
7.8.3 Read number of times the pressure limit is exceeded 19
7.8.4 Read number of times the temperature limit is exceeded 19
7.8.5 Event logging 19

7.9 Reset sensor / parameter 20
7.10 Simulation.... 20

7.10.1 Set simulation value pressure 20
7.10.2 Set simulation value temperature 20
7.10.3 Set simulation duration 20
7.10.4 Switch simulation on / off. 20

7.11 List of the parameters 21
7.12 List of system commands 21

8 Operation 23

8 Operation 23

9 Troubleshooting 24

10 Disposal, repair and return 25
11 Factory setting 26

1 Preliminary note

You will find instructions, technical data, approvals and further information using the QR code on the unit / packaging or at documentation.ifm.com.

1.1 Symbols used

√ Requirement
Instructions
Reaction, result

[...] Designation of keys, buttons or indications

→ Cross-reference

Important note

Non-compliance may result in malfunction or interference.

Information

Supplementary note

1.2 Warnings

Warnings indicate the possibility of personal injury and damage to property. This enables safe product handling. Warnings are graded as follows:

WARNING

Warning of serious personal injury

▷ If the warning is not observed, fatal and serious injuries are possible.

CAUTION

Warning of minor to moderate personal injury

▷ If the warning is not observed, minor to moderate injuries are possible.

ATTENTION

Warning of damage to property

▷ If the warning is not observed, damage to property is possible.

2 Safety instructions

- The unit described is a subcomponent for integration into a system.

• The system architect is responsible for the safety of the system.

• The system architect undertakes to perform a risk assessment and to create 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 architect 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 (→ Intended use).
• If the operating instructions or the technical data are not adhered to, personal injury and/or damage to property may occur.
• 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.
• Only use the product for permissible media (→ Technical data).
  • Store the device in its original packaging.

2.1 Cybersecurity

Installation

The device is suitable for operation in a secure environment according to IEC 62443-1-1.

The device was designed for operation behind a firewall.

▶ Carry out a risk assessment of the system according to IEC 62443-1-1.
▶ Take measures to ensure physical security.

Operation

▶ Observe the security functions described in the product documentation and the recommendations for their use.

Maintenance

- ▶ Back up system configuration and system data in accordance with your company's change management processes.

Decommissioning

▶ Ensure that no sensitive information can fall into unauthorised hands.
▶ Always reset the system settings to the factory settings before decommissioning the device.

3 Intended use

The unit measures and monitors the system pressure and the medium temperature of machines and installations.

3.1 Application area

Type of pressure: relative pressure

Information on pressure rating and bursting pressure → Data sheet

Avoid static and dynamic overpressure exceeding the indicated pressure rating by taking appropriate measures. The indicated bursting pressure must not be exceeded. Even if the bursting pressure is exceeded only for a short time, the unit may be destroyed. ATTENTION: Risk of injury!

The units are vacuum resistant.

4 Function

Measuring cell:

• The system pressure is measured by a ceramic capacitive measuring system.
• The medium temperature is recorded on the back of the ceramic measuring cell.

Signal transmission:

- The sensor can be operated with an analogue output and in IO-Link mode.

SIO mode:

- Analogue signal measured pressure value 4-20 mA (pin 2).

IO-Link mode:

• Measured pressure value
• Measured temperature value
- Exceeding or falling below the limits of the measuring range
- Device status
- Parameter setting
• Device diagnostics (events)

4.1 IO-Link

IO-Link is a communication system for connecting intelligent sensors and actuators to automation systems. IO-Link is standardised in the IEC 61131-9 standard.

General information on IO-Link at io-link.ifm

Input Output Device Description (IODD) with all parameters, process data and detailed descriptions of the device at documentation.ifm.com

IO-Link offers the following advantages:

• Interference-free transmission of all data and process values
• Parameter setting in the running process or presetting outside the application
- Parameters for identifying the connected devices in the system
• Additional parameters and diagnostic functions
• Automatic backup and restore of parameter sets in case of device replacement (data storage)
- Logging of parameter sets, process values and events
• Device description file (IODD - Input Output Device Description) for easy project planning
• Standardised electrical connection
- Remote maintenance

4.2 IO-Link functions of the sensor

4.2.1 Internal unit temperature

The internal unit temperature of the sensor can be read out.

4.2.2 Counter overpressure events

The unit has a counter for overpressure events = [HIPC]. The value above which a pressure is considered to be overpressure can be set.

4.2.3 Counter overtemperature events

The unit has a counter for overtemperature events = [HITC]. The value above which a temperature is considered to be overtemperature can be set.

4.2.4 Optical localisation

The sensor can be localised in the plant via the commands [Flash_On] / [Flash_Off]. When using the command, the LED flashes.

4.2.5 Event logging

With IO-Link, the sensor has two logging mechanisms for IO-Link events:

• [Event History]: Listing of the last 20 events.
• [Event Counter]: Counting of all events that have occurred.

4.2.6 Operating hours counter

In the parameter [operating_hours], the hours are counted during which the sensor was active (cannot be reset).

In case of a voltage interruption, the counter events of less than one hour can be lost.

4.2.7 Defined state in case of a fault

If a device fault is detected, the analogue output goes into a defined state, which is defined via the parameter [FOU2].

4.3 Zero point behaviour of the analogue output and communication via IO-Link

Fig. 1: Analogue output and communication via IO-Link

1: Process value
2: Sensor output signal (green)
3: Ideal measurement signal (red)
4: System pressure
5: Zero point stabilisation → Data sheet
6: 0.5 x zero point stabilisation → data sheet

The first process value that can be evaluated via the analogue output and the IO-Link communication is indicated by the half zero point stabilisation (6).

In the further range of the zero point stabilisation (5), the output signal of the sensor runs at a larger gradient angle.

The zero point stabilisation is specified in \% of the span → Data sheet.

4.4 Operating modes

The operating mode is defined by the wiring ( → Electrical connection) and automatically recognised by the unit.

4.4.1 2-wire operation

OUT2 (pin 2)

Analogue signal proportional to pressure 4...20 mA

4.4.2 3-wire operation

OUT1 (pin 4)	Communication via IO-Link
OUT2 (pin 2)	Analogue signal proportional to pressure 4...20 mA

5 Installation

Before installing and removing the device: Make sure that no pressure is applied to the system.
Accessories welding adapter (order no.: E30509) and welding aid (order no.: E43440) at: www.ifm.com
The sealing of the ceramic measuring cell is free of elastomers and thus maintenance-free.
Only remove the device from the packaging and remove the protective cap immediately before installation.

▶ Check the device for damage.

▷ Do not use a damaged device.

When installing, ensure that the thread type and thread length of the screw-in hole used are suitable. Observe the thread type and the thread position on the sensor. → Scale drawing Data sheet www.ifm.com

5.1 Sealing versions

The unit can be sealed to the process in three ways:

Flush mount zero-leak using metal-to-metal seal ( → ☐ 10)

Sealing flush mount via sealing ring ( → ☐ 12)

Rear sealing via sealing ring ( → ☐ 13)

5.1.1 Flush mount zero-leak using metal-to-metal seal

▶ Ensure cleanliness of the sealing areas.

▶ Lightly grease the contact areas using a suitable lubricating paste which has been approved for this application.
▶ Insert the sensor into the adapter or into a suitable threaded hole ( → Scale drawing threaded hole).
▶ Tighten firmly. Tightening torque: 25 Nm.

Repeated screwing and unscrewing of the sensor can impair the sealing effect.

Use of welding adapters:

When using a welding adapter, observe the permissible pressure rating of the adapter.

▶ During the welding process, make sure that the adapter is not deformed and that the sealing area is not affected.
▶ Use welding aid E43440 for optimum heat conduction.
▶ Observe the instructions and data sheet of the adapter used.

When reworking the weld seam: ▶ leave out or protect the sealing area.

Threaded hole for metal-to-metal sealing:

Scale drawing to create a suitable threaded hole for flush metal-to-metal sealing of the sensor.

5.1.2 Sealing flush mount via sealing ring

This sealing version is only possible up to a nominal pressure range of 60 bar.
The sealing ring is not supplied with the device. Accessories sealing ring FKM (order no.: E30510), FFKM (order no.: E30512), EPDM (order no.: E30511) at: www.ifm.com

▶ Lightly grease the contact areas using a suitable lubricating paste which has been approved for this application.
▶ Insert the sensor into the adapter or into a suitable threaded hole ( → Scale drawing threaded hole).
▶ Observe surface and shape tolerances.
▶ Ensure cleanliness of the sealing areas.
▶ Tighten firmly. Tightening torque: 25 Nm.

Threaded hole for sealing via sealing ring:

Scale drawing to create a suitable threaded hole for flush mount sealing of the sensor by its sealing ring.

1: Rtmax 6.3 must be guaranteed in this area, as the sealing ring is located here!

5.1.3 Rear sealing via sealing ring

The rear sealing ring made of FKM according to DIN EN ISO 1179-2 (order no.: E30492) has extended chemical resistance and is factory-mounted. Further moulded seals made of FFKM (order no.: E30513) and EPDM (order no.: E30451) are available as accessories.

Observe the following when sealing exclusively with the rear sealing ring (3):

▶ requirements for the screw-in hole: in accordance with DIN EN ISO 1179-1, observe the minimum insertion depth of 21.5 mm.
▶ The sealing area on the flange/socket must be flush and have a surface structure of at least Rz = 6.3 (observe DIN EN ISO 1179-1).
▶ If required: lightly grease the contact areas using a suitable lubricating paste which has been approved for this application.
▶ Insert the sensor in a process connection G1/2.
▶ Tighten firmly. Tightening torque: 25 Nm.

6 Electrical connection

The unit must be connected by a qualified electrician.

Observe the national and international regulations for the installation of electrical equipment.

Voltage supply according to SELV, PELV.

▶ Disconnect power.
▶ Connect the unit as follows:

Connector: 1 x M12; coding: A

2-wire

Pin	Assignment
1	L+
2	OUT2: AO

3-wire

Pin	Assignment
1	L+
2	OUT2: AO
3	L-
4	DATA: IO-Link

Parameter setting

Pin	Assignment
1	L+
3	L-
4	DATA: IO-Link

7 Parameter setting

Parameters can be set before installation or during operation.

If you change parameters during operation, this will influence the function of the plant.

▶ Ensure that there will be no malfunctions in your plant.

During parameter setting the unit remains in the operating mode. It continues to monitor with the existing parameter until the parameter setting has been completed.

The device parameters can be set via the IO-Link interface in the following ways, for example:

• Parameter setting via a suitable parameter setting software, e.g. ifm moneo|configure
  • Parameter setting via a PLC
  • Parameter setting via an IIoT application

Requirements for parameter setting via the IO-Link interface:

√ The Input Output Device Description (IODD) for the device in case of parameter setting via a parameter setting software, see documentation.ifm.com
√ The IO-Link interface description (PDF) for the device in case of parameter setting via a PLC or IIoT application, see documentation.ifm.com
√ An IO-Link master
▶ Connect the IO-Link master to the parameter setting software, the PLC or the IIoT application.
▶ Connect the device to a suitable free port of the IO-Link master.
▶ Set the port of the IO-Link master to the IO-Link operating mode.
▷ The device changes to the IO-Link mode.
▶ Change the parameter settings in the software.
▶ Write the parameter settings to the device.

Support for system integration and parameter setting via IO-Link:

→ Manual of the parameter setting software (e.g. moneo)
→ Explanations and startup packages at ifm.com/cnt/io-link-system-integration.

7.1 Parameter setting via the memory plug

A parameter set can be written to the device / can be recorded by the device via a memory plug (ifm storage module): www.ifm.com.

In order to allow for data to be written from the memory plug to the sensor, the sensor must have the factory setting.

If the sensor has been configured, the memory plug records the parameter set which can then be transferred to other sensors of the same type.

▶ Load a suitable parameter set (e.g. from a PC or from a sensor of the same type) to the memory plug.
▶ Connect the memory plug between sensor and socket.
▷ Sensor with factory setting:
When voltage is supplied, the parameter set is transferred from the memory plug to the sensor.
▷ Sensor with changed settings:
When voltage is supplied, the memory plug records the sensor's parameter set.
▶ Remove the memory plug.
▶ Put the unit into operation.

More information on the memory plug: → Documentation www.ifm.com.

7.2 Scale analogue value

7.2.1 Manually scale analogue value

▶ Select [ASP2] and set the pressure value at which 4 mA is provided.	[ASP2]
▶ Select [AEP2] and set the pressure value at which 20 mA is provided.	[AEP2]
Minimum distance between ASP2 and AEP2 = 20 % of the measuring span (scaling factor 5).

7.2.2 Scaling the analogue value using the teach function

▶ Approach the desired minimum system pressure in the installation and keep it constant. ▶ Select [tASP]. ▷ The current pressure is defined as start value for the analogue signal (4 mA).	[tASP]
▶ Approach the desired maximum system pressure in the installation and keep it constant. ▶ Select [tAEP]. ▷ The current pressure is defined as end value for the analogue signal (20 mA).	[tAEP]

7.3 Select the standard unit of measurement (option)

▶ Select [uni. P] and set the unit of measurement:[bAr] / [mbar] / [MPA] / [kPA] / [PSI]

[uni. P]

The selectable units of measurement depend on the respective unit. Changing the unit has no effect on the transmission of the IO-Link process value, which is always transmitted in PA.

7.4 Standard unit of measurement for medium temperature

▶ Select [uni. T] and set the unit of measurement: [°C] / [°F]

[uni. T]

Changing the unit has no effect on the transmission of the IO-Link process value, which is always transmitted in °C.

7.5 Setting of the output function

▶ Select [OU2] and set the output function:[I] = Pressure proportional analogue signal 4...20 mA[Off] = Output off.

[OU2]

7.6 User settings (optional)

7.6.1 Define the status of output 2 in case of a fault

Define status of OUT2 in case of an internal fault:▶ Select [FOU2] and set the value:Off = Analogue signal goes to the lower final value (< 3.6 mA)On = Analogue signal goes to the upper final value (> 21 mA)

[FOU2]

In case of fault indication:

▶ Read parameters via IO-Link or contact the manufacturer.

7.6.2 Set damping for the analogue output

▶ Select [dAA] and set the damping constant in seconds (T value: 63%). Setting range: 0.00... 99.99 s

[dAA]

Damping [dAA] only influences the analogue output / analogue signal path.

7.6.3 Damping for the process data flow

▶ Select [dAP. P] and set the damping constant in seconds (T value: 63%). Setting range: 0.00... 99.99 s

[dAP. P]

Damping [dAP. P] influences the process data flow (IO-Link communication).

7.7 Zero-point calibration

Manual adjustment of the offset:

[coF]

▶ Select [coF] and set the zero point between -5%...+5%. The internal measured value “0” is shifted by this value.

Example: Change zero point [coF]

A: Output signal

D: Pressure

MEW: Final value of the measuring range

V0: Curve of measured values at factory setting

V1, Changed curve of measured values

V2:

Automatic adjustment of the offset:

[tcoF]

▶ Select [tcoF]. The internal measured value “0” is shifted by this value. Tech area: -5%...+5% of the measuring span.

[coF] and [tcoF] can be reset with the system command [RESET_COF].

7.8 Diagnostic functions

7.8.1 Read min/max values for the system pressure

▶ Select [Hi. P] or [Lo. P] to display the highest or lowest measured process value: [Hi. P] = maximum value system pressure [Lo. P] = minimum value system pressure

[Hi. P] [Lo. P]

With the system command [RESET_HI_PRES], [Hi. P] can be reset.

With the system command [RESET_LO_PRES], [Lo. P] can be reset.

With the system command [RESET_HI_LO_PRES], [Hi. P] and [Lo. P] can be reset.

7.8.2 Read min/max values for the medium temperature

▶ Select [Hi. T] or [Lo. T] to display the highest or lowest measured process value:[Hi. T] = max. value medium temperature[Lo. T] = min. value medium temperature

[Hi. T][Lo. T]

With the system command [RESET_HI_TEMP], [Hi. T] can be reset.

With the system command [RESET_LO_TEMP], [Lo. T] can be reset.

With the system command [RESET_HI_LO_TEMP], [Hi. T] and [Lo. T] can be reset.

7.8.3 Read number of times the pressure limit is exceeded

[HIPC]: Number of times the pressure limit is exceeded. HIPC counts how often the limit HIPS has been exceeded. The limit must be exceeded for at least 0.5 ms. [HIPS]: Setting of the threshold for the pressure limit counter.

[HIPC][HIPS]

With the system command [RESET_HIPC], [HIPC] can be reset.

In case of a voltage interruption, the counter events of the last 10 minutes can be lost.

7.8.4 Read number of times the temperature limit is exceeded

[HITC]: Number of times the temperature limit is exceeded. HITC counts how often the limit HITS has been exceeded. The limit must be exceeded for at least 0.5 ms. [HIPT]: Setting of the threshold for the temperature limit counter.

[HITC][HITS]

With the system command [RESET_HITC], [HITC] can be reset.

In case of a voltage interruption, the counter events of the last 10 minutes can be lost.

7.8.5 Event logging

With IO-Link, the sensor has two logging mechanisms:

• Event History (Parameter [Event_History])
• Event Counter (Parameter [Event_Counter])

The last 20 events that occurred are recorded in the event history. As long as no event has occurred, the value [noEvent] or [0] appears in this list.

The event counter (limited to Int32 events) can be used to read how often a specific event has occurred at the sensor.

The event counter and the event history can be reset using the system commands [RESET_EVENT_HISTROY], [RESET_EVENT_COUTER].

In case of a voltage interruption, the events of the last 10 minutes can be lost.

7.9 Reset sensor / parameter

Application reset [APPL]:The application reset resets all application-specific parameters that can be set or taught. The device identification parameters Application Specific Tag, Function Tag and Location Tag are retained.

[APPL]

If IO-Link data storage is activated, this triggers a parameter update in the master. This writes the parameters configured in the master to the unit again. An application reset may therefore be ineffective.

Back to Box [btb] The Back to Box Reset also resets all writeable unit identification parameters such as Application Specific Tag, Function Tag and Location Tag, as well as diagnosis and status parameters.

[btb]

After the Back to box reset, the sensor suspends communication and measurement operation until the voltage is interrupted. The IO-Link data storage is not triggered.

7.10 Simulation

7.10.1 Set simulation value pressure

▶ Select [S. PRS]. ▶ Set the process value to be simulated[Numerical value] = Pressure (depending on basic setting)[OL] = Detection range exceeded[UL] = Below the detection range (depending on measuring range)[Err] = Electronic error detected

[S. PRS]

7.10.2 Set simulation value temperature

▶ Select [S. TMP]▶ Set the process value to be simulated[Numerical value] = Temperature (depending on basic setting)[OL] = Detection range exceeded[UL] = Below detection range[Err] = Electronic error detected[cr. OL] = Temperature range critically exceeded[cr. UL] = Critically below temperature range

[S. TMP]

7.10.3 Set simulation duration

▶ Select [S. Tim]▶ Set time span for simulation Setting range: 1, 2, 3, 4, 5, 10, 15, 20, 30, 45, 60 min.

[S. Tim]

7.10.4 Switch simulation on / off

▶ Select [S. On] and set:[SIMU_START] = Simulation on[SIMU_STOP] = Simulation off

[S. On]

Simulation active until system command [SIMU_STOP] is sent or the time set via [STim] elapses. After the simulation, the unit switches back to operating mode.

7.11 List of the parameters

Parameter	Function
ASP2	Analogue start point: 4 mA.
AEP2	Analogue end point: 20 mA.
uni. P	Unit of measurement for system pressure.
uni. T	Unit of measurement for medium temperature.
FOU2	Status of output 2 in case of an error.
coF	Zero-point calibration.
dAA	Damping for the analogue output.
dAP. P	Damping of the process value pressure.
Lo. P	Minimum value memory for the system pressure.
Hi. P	Maximum value memory for the system pressure.
Lo. T	Minimum value memory for the medium temperature.
Hi. T	Maximum value memory for the medium temperature.
ou2	Output function for OUT2.
S. PRS	Simulation of a pressure / event.
S. TMP	Simulation of a temperature / event.
S. TIM	Simulation time
S. On	Simulation start / stop.
HIPS	Setting of the pressure limit for the counter [HIPC].
HIPC	Number of times the pressure limit is exceeded [HIPS].
HITS	Setting of the temperature limit for the counter [HITC].
HITC	Number of times the temperature limit is exceeded [HITS].
Internal_Temperature	Reading of the internal device temperature.
Operating_Hours	Operating hours counter
Event_History	List of the last 20 events that occurred.
Event_Counter	Event counter

7.12 List of system commands

Command	Function
Teach_COF	Teaching the zero point.
RESET_COF	Reset of the zero-point calibration.
TEACH_ASP2	Teaching the analogue start point for system pressure.
TEACH_AEP2	Teaching the analogue end point for system pressure.
FLASH_ON	Start of the visual localisation of the sensor.
FLASH_OFF	Stop of the visual localisation of the sensor.
SIMU_START	Start of the simulation.
SIMU_STOPP	Stop of the simulation.
BackToBox	Performing the Reset Back to Box.
Application Reset	Perform the application reset.
RESET_HI_PRES	Reset the maximum value memory for system pressure [Hi. P].
RESET_LO_PRES	Reset the minimum value memory for system pressure [Lo. P].
RESET_HI_LO_PRESS	Reset the max. and min. value memory for system pressure [Hi. P] and [Lo. P].
RESET_HI_TEMP	Reset the maximum value memory for media temperature [Hi. T].
RESET_LO_TEMP	Reset the minimum value memory for media temperature [Lo. T].
RESET_HI_LO_TEMP	Reset the max. and min. value memory for media temperature [Hi. T] and [Lo. T].
RESET_HITC	Reset the temperature threshold counter [HITC].
RESET_HIPC	Reset the pressure threshold counter [HIPC].
RESET_EVENT_HISTORY	Reset the recorded events.
RESET_EVENT_COUNTER	Reset the event counter.
Test Event 1	Test Event
Test Event 2	Test Event

8 Operation

After switching on the supply voltage and expiry of the power-on delay time

(2-wire: approx. 1 s / 3-wire: approx. 0.5 s), the device is in the RUN mode (= normal operating mode). It carries out its measurement and evaluation functions and generates output signals according to the set parameters.

9 Troubleshooting

The unit has many self-diagnostic options.

It monitors itself automatically during operation. Warnings and faults are signalled via IO-Link. If a process value fails, the other process values are still available.

Additional diagnostic functions are available via IO-Link.

IODD interface description at: www.ifm.com.

The IO-Link error codes are contained in the IODD.

Event	Type	Description	**Output status	IO-Link process value	Device status	Troubleshooting
Hardware failure (HWF)	Error	Unit faulty / malfunction	FOU	not valid	4	Replace device
Parameter setting fault	Error	Parameter setting outside the valid range	FOU	not valid	3	Repeat parameter setting
Component error	Error	Error in pressure measurement.	FOU	valid	3	Check pressure measurement. Replace device.
	Error	Error in temperature measurement	FOU	valid	3	Check temperature measurement. Replace device.
Process variable range over-run	Warning	Pressure range exceeded ( ≥ 105%VMR* ) or temperature range exceeded ( ≥ 115°C/239°F )	OU	valid	2	Check the pressure range / temperature range.
Process variable range under-run	Warning	Below pressure range ( ≥ -5%VMR* ) or below temperature range ( ≥ -30°C/-22°F )	OU	valid	2	Check the pressure range / temperature range.
Below measuring range	Error	Critically below temperature range ( ≤ -35°C/-31°F )	FOU	valid	3	Check the temperature range.
Measuring range exceeded	Error	Temperature range critically exceeded ( ≥ 125°C/257°F )	FOU	valid	3	Check the temperature range.
Device temperature exceeded	Warning	Device temperature exceeded ( >125°C/257°F )	OU	valid	2	Check device temperature.
Below device temperature	Warning	Below device temperature ( < -25°C/-13°F )	OU	valid	2	Check device temperature.
Faulty voltage supply	Error	Supply voltage too low	Off	Off	Off	Check the supply voltage

*VMR = final value of the measuring range
**Output status: in case of a fault the analogue output behaves according to the setting at [FOU2]. In case of a warning the analogue signal is as defined in the parameters [OU].

10 Disposal, repair and return

▶ After use, dispose of the unit in an environmentally friendly way in accordance with the applicable national regulations.
▶ In case of return shipment, ensure that the unit is free from soiling, especially from dangerous and toxic substances.
▶ It is not possible to repair the unit.

11 Factory setting

	Factory setting	User settings
ASP2/TEACH_ASP2	0% VMR *
AEP2/TEACH_AEP2	VMR
uni.t	°C
uni. P	mbar / bar
dAP. P	0.06
dAA	0.1
ou2	I
FOU2	OFF
cof / TEACH_COF	0
S. PRS	50% VMR *
S. TMP	50% VMR *
S. TIM	3
S. On	OFF
HIPS	VMR
HIPC	0
HITS	VMR
HITC	0

VMR = final value of the measuring range

^* = the indicated percentage of the final value of the measuring range (VMR) of the corresponding sensor is set.