Kübler’s PROFINET IO encoders support Fast Start Up

Dec. 4, 2014
Time is money.

Time is money. This applies especially to cost-intensive in-dustrial plants. Every even a short downtime has a negative impact. Repeated start-up times add up and become costly interruptions. No wonder then that people looked for a tech-nical solution to reduce these times. And they found it.

The Fast Start Up (FSU) enables a system to start up in much less than a second. The PROFINET IO encoders from Kübler make this quick start possible.

What a difference with respect to the equipment used until now. Without FSU, starting up a PROFINET IO system with all the field devices participating in the communication re-quires about ten seconds. Too long and too expansive. In the case of applications such as highly complex industrial robots, it must be possible to carry out a tool change much faster, since this change has a direct influence on the pro-cessing cycles. Flexibility in production is essential within the timed cycle of an assembly line. In short: it must be possible to manufacture quickly and flexibly various vehicle types.

The Sendix PROFINET IO encoders from Kübler make this possible. They support FSU by storing the parameters that have been determined during the first Auto-Negotiation/Auto-Crossover. They also store the IP address. Moreover, the in-ternal start-up after a reset also guarantees speed thanks to the use of a performant embedded operating system.

Time is saved also during control, since Ezturn ensures a very easy testing of the defined parameters and setting of the preset values.

But, in spite of the increased speed, the functionality of the sensor has not been reduced. Kübler’s Sendix absolute fami-ly implements the whole encoder profile according to “Profile Encoder Version 4.1” and “Identification & Maintenance Functionality in Version 1.16” (IM 0, 1, 2, 3 and 4).

Another plus: Kübler offers the customers PROFINET IO en-coder-specific program blocks for the STEP7 environment.

These encoders support the Isochronous-Real-Time-Mode, also called IRT Mode, and are therefore ideal for real-time applications. Implementation is easy, thanks to the simple “Plug-and Play” installation with the help of the “Ezturn for Profinet” software supplied with the encoder, which also al-lows a quick and simple update of the software of the en-coder. This firmware update allows expanding the features of the encoder without having to disassemble it. Result: the production cycle does not need to be interrupted.

To ensure a quick and error-free start-up, all parameters can be programmed via the bus. The bus terminal cover is equipped with 3 x M12 connectors for a quick, simple and er-ror-free connection. The standard Ethernet interface ensures a direct link, for example from the laptop to the encoder.

Thanks to the “Safety-LockTM” bearing structure, the Sendix PROFINET IO singleturn and multiturn encoders guarantee highest durability. The large interlocked, widely spaced bear-ings ensure stability in case of vibrations and confer a ro-bustness that even accepts incorrect installation, avoiding machine stoppages and repair work. This also considerably reduces the downtimes. The sturdy die-cast housing, with its protection level up to IP67 and the wide temperature range of –40°C to +85°C, also allow using these encoders for out-door applications.

Visual warning and alarm signals advise of sensor faults, undervoltage or over-temperature. Fault diagnosis is there-fore much simpler, allowing the measures necessary to cor-rect the problem to be taken without delay, thus avoiding long machine downtimes.

The Media Redundancy Protocol is implemented. Basically, the advantage of MRP is that the functionality of the compo-nents, which are wired in a ring structure, is maintained in case of a failure or of a breakage of the wires in any location.

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