Type 8741

23 | 24

Visit product website 

8.2. Connecting Type 8741 with the Bürkert Communicator software

The Bürkert Communicator software interface is based on CANopen. The appropriate bus termination is mandatory. For Type 8741

Analogue, Industrial Ethernet or Modbus RTU, activate the termination resistor switch on the büS stick. For Type 8741 büS/CANopen, the

termination resistor must not be activated in case the device is already integrated into a properly terminated bus network.

• For Type 8741 Analogue, Industrial Ethernet or Modbus RTU, the connection is established via the device’s micro USB socket (USB büS

interface set 2 contains the necessary accessories).

• For Type 8741 büS/CANopen, the connection is established via the 4-pin terminal block (USB büS interface Set 1 contains the required

accessories).

Please note: no external power supply must be connected to the micro USB socket. The device must be provided with power as described

in chapter “5. Device / Process connections” on page 18.

8.3. Configuration management for easy device replacement

Depending on the electrical connection of the MFC, the following options for device replacement are available:

• If a device needs to be replaced, the memory card can be removed from the defective device and inserted into the new one. This

transfers all data of the device to be replaced to the new device. The memory card is available as an accessory and must be ordered

separately (see “9.5. Ordering chart accessories” on page 24).

• Option for Type 8741 büS/CANopen: The device is exchanged via the configuration provider of the higher-level gateway control (ME43 or

ME63). In the gateway, a memory card is required. The memory card is available as an accessory and must be ordered separately (see

“9.5. Ordering chart accessories” on page 24).

In order to successfully exchange the device, it is necessary that both the new device and the device to be replaced possess the same

device ID.

8.4. Web server for Industrial Ethernet variant

The Industrial Ethernet-based devices (except for the EtherCAT® protocol) from software version A.13.00.00 dispose of an integrated web

server. The server can be accessed via a web browser by entering the device’s IP address (factory setting IP192.168.1.100).

9.

Ordering information

9.1. Bürkert eShop

Bürkert eShop – Easy ordering and quick delivery

You want to find your desired Bürkert product or spare part quickly and order directly? Our

online shop is available for you 24/7. Sign up and enjoy all the benefits.

Order online now

9.2. Recommendation regarding product selection

Note:

Use the Product Enquiry Form (see “9.4. Bürkert Product Enquiry Form” on page 24) for the device details and send it to us once

completed.

For the proper choice of the actuator orifice within the MFC, you need to know not only the required maximum flow rate Q

N but also the

pressure values directly before and after the MFC (p

1, p2) at QN. In general, these pressures are not the same as the overall inlet and outlet

pressures of the whole plant, because usually, additional flow resistors (tubing, additional shut-off valves, nozzles etc.) are present both

before and after the MFC.

Please use the Product Enquiry Form to indicate the pressures directly before and after the MFC. If these are unknown or not accessible to

measurement, estimates are to be made by taking into account the approximate pressure drops over the flow resistors before and after the

MFC, at Q

N flow rate. In addition, please quote the maximum inlet pressure p1 max to be encountered. This data is needed to make sure the

actuator is able to provide a close-tight function within all the specified modes of operation.