JUMO dTRANS p35 Manual

5.3 Teaching Function

Provide the following one click operation:

The role of regional demonstration function

Universal parameter zero adjustment uses the current measurement value as an offset to reset PV to zero

Restore default settings for general parameters, reset switch points, fine tune, and event settings

Fine tune the actual starting value to assign the current measurement value to the actual starting value

Fine tune the actual endpoint value to assign the current measurement value to the actual endpoint value

Reset all service information and reset all service data (running hour counters, minimum/maximum values, etc.)

Reset the running hour counter for service information-

Service information reset drag indicator minimum/maximum value-

Attention: Frequent writing of EEPROM parameters (with a lifespan of approximately 100000 cycles) may result in memory errors. Avoid rapid and continuous writing.

5.4 Process Data and Status Byte

IO Link periodically transmits the following process data (index 40, sub index 0):

Pressure process value: The data type can be TFLOAT or TINT32, and the unit can be configured (bar, mbar, psi, kPa, etc.).

Pressure unit: TUINT8

Pressure process value status: bit field byte

Bit0: Invalid process value (over range or under range)

Bit1: Configuration data error

Bit2: Calibration data error (device malfunction)

Switch output status: bit 0 corresponds to OUT1, bit 1 corresponds to OUT2.

The status byte can be easily parsed by the upper system, achieving fast fault location.

5.5 Fault Indication and Events

When an error occurs, IO Link reports the device status and event code. The following table lists common faults and their manifestations in process values:

Fault Description Process Value Return Value Process Value Status Bit0 Event Code Configurable Switch

Process value invalid error value (such as 7e37) 1 0x1000 Yes

Exceeding the range of 2.0e37 1 0x8C20 is

Under range 1.0e37 1 0x8C20 is

Configuration data error - Bit1=1 0x6320 No

Equipment hardware failure error value Bit2=1 0x5000 Yes

Undervoltage -0x5111 No

Temperature error/overload -0x4000 No

PDValid flag: When the device status is "Fault" (4), PDValid=0， All process data is invalid.

Service Data and Maintenance

6.1 Service data (read-only or resettable)

Run hour counter (index 30000): Accumulated power on time.

Minimum/maximum pressure process values (index 30020/30030): Store historical extreme values.

Version information: VDN version, bootloader version.

The above data is cyclically written to the EEPROM every 10 minutes and can be reset through the teaching function.

6.2 Maintenance precautions

The equipment does not require regular maintenance, but it is recommended to regularly check the process connection sealing and cable integrity.

The surface of the sensor may be hot due to the heat medium, and it is necessary to cool it down and wear protective equipment during operation.

Before handling hazardous media (corrosive, flammable, etc.), a risk assessment must be conducted, referring to the media safety data sheet.

6.3 Disposal of Waste

According to the WEEE Directive (2012/19/EU), equipment cannot be disposed of as household waste. Manufacturers should be contacted for recycling or disposed of in accordance with local electronic waste regulations.

Accessories and spare parts

JUMO provides the following official attachments:

Name Order Number

Pre configured service 00427968

On site service deployment 00427970

4-channel IO Link master station 00759867

8-channel IO Link master station 00759875

USB 1-channel IO Link master station (including mini USB cable) 00694070

M8/M12 connection cable (2m, different configurations) 00767913/00767914/00767923/00767927/00777804

IODD files (V1.0.1/V1.1) 00681036/00681037

When using IO Link master stations not provided by JUMO, it is necessary to ensure that they support COM3 rates and a minimum cycle of 2ms.

Typical Engineering Applications and Troubleshooting

8.1 Case 1: Switch output misoperation

Phenomenon: When the pressure is stable, the switch output frequently jumps.

Analysis: It may be caused by pressure spikes or noise. Check if switch delay is enabled. Set the turn-on delay and turn off delay to 0.5-2 seconds to filter out transient disturbances. Simultaneously confirm whether the time constant of the digital filter (parameter "pressure filter time constant", index 122) is suitable for the site.

8.2 Case 2: IO Link Communication Failure

Phenomenon: The main station cannot recognize the sensor and the LED is not flashing.

Steps:

Check the power supply voltage: IO Link mode requires 18-32V, SIO mode requires 9.6-32V. Measure the voltage at pins 1-3.

Confirm that the length of M12 cable does not exceed 20m (unshielded) or longer (shielded).

Check if IODD is imported correctly. Use the device ID (6-digit number on the nameplate) to locate the corresponding IODD file.

Attempt to connect the sensor to the USB IO Link main station (00694070) and directly connect it to the PC to eliminate compatibility with the main station.

8.3 Case 3: Inadequate cleaning after EHEDG installation

Phenomenon: There are still residues near the sensor diaphragm after CIP.