Profibus sniffer enables real time advanced diagnostic options

Profibus sniffer enables real time advanced diagnostic options

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The ibaBM-DP Profibus sniffer unveiled by iba AG offers an advanced bus diagnosis with monitoring of the signal level and the potential drift. Thanks to its ibaNet 32Mbit Flex protocol, the device supports an increased number of signals, as well as the flexible configuration of sample rate and sending output signals.
By eeNews Europe

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Output signals of the ibaPDA-V6 data acquisition system or the ibaLogic-V4 signal manager can be sent to the Profibus master, for example to transmit warning messages whenever limit values are exceeded or to transfer additional setpoint values to the control. Depending on the sample rate, up to 4060 Bytes per cycle can be acquired and recorded.
The sampling cycles can be selected from a range reaching from 25 µs at 65 Byte to 1,400 µs at 4060 Byte. Moreover, the sniffer offers the option of cascading. Up to 15 32-Mbit-Flex-compatible devices can be connected in a ring topology.

In addition to the data acquisition, users of the new Profibus sniffer also have access to an advanced diagnostic function, including defective telegrams/counters per bus, error counters for slaves, signal level or potential drift. The sniffer keeps a Profibus-Event log book containing the bus status changes and a device log book. The new Profibus sniffer can be inserted at any location in the Profibus.

In the "sniffer" operating mode, ibaBM-DP listens to the data that are exchanged for communication purposes between controller, decentral periphery and drives and hence is no active participant in the Profibus. In this mode, the sniffer does not charge any resources in the controller. In the "slave" operating mode, the device is an active participant in the Profibus and can be supplied with data in a targeted way.
In redundancy mode – especially for S7-400H controllers – ibaBM-DP can listen to and acquire data from redundant Profibus lines. The sniffer monitors the telegram traffic on both Profibus drops, but only records the active drop.

Visit iba AG at www.iba-ag.com

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