Balluff Network Interface Profibus,
BNI PBS-504-00x-K008
www.balluff.com
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Basic Knowledge
3.1. Product
description
Balluff Network Interface BNI PBS-...:
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Used for connecting sensors/actuators to a Profibus-DP network.
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Sensors/actuators can be connected through 4 standard I/O ports.
Connection options:
A total of 8 ports are available which can be freely configured. If for example 4 IO-Link ports
are configured, 4 standard I/O ports can be used.
BNI PBS-504-...: Max. 8 standard I/O-ports and/or max.4 IO-Link ports, freely configurable.
The main areas of application are:
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In the industrial area as an interface between sensors/actuators and a Profibus.
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When using "intelligent" sensors and actuators which process information in
addition to the actual process signal (e.g. diagnostics information).
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Shall not be used in Profibus networks where repeater-modules ared used.
BNI PBS 504-002-K008 should be used in these networks instead.
3.2. Profibus
Open bus system for process and field communication in cell networks with a low number of
stations as well as for data communication per IEC 61158/EN 50170. Automation devices
such as PLC's, PC's, control and monitoring devices, sensors or actuators can
communicate over this bus system.
Variants:
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Profibus DP for fast, cyclical data exchange with field devices,
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Profibus PA for applications in process automation in the intrinsically safe area,
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Profibus FMS for data communication between automation devices and field
devices.
3.3. IO-Link
IO-Link is defined as a standardized point-to-point connection between sensors/actuators
and the I/O module. An IO-Link sensor/actuator can send additional communication data
(e.g. diagnostics signas) in addition to the binary process signas over the IO-Link interface.
Compatibility with standard I/O:
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IO-Link sensors/actuators can be connected to existing I/O modules.
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Sensors/actuators which are not IO-Link capable can be connected to an IO-Link
module.
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Standard sensor/actuator cable can be used.
Key technical data:
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Serial point-to-point connection,
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Communication as add-on to standard I/O.
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Standard I/O connection technique, unshielded, 20m cable length.
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Communication using 24V pulse modulation, standard UART protocol.
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Maximum current draw: per sensor 200 mA/per actuator 1,6 A.