IBA BM-PN, Manual, Page: 7 / 77

ibaBM-PN Manual
Issue 1.9
7
2 Introduction
The PROFINET bus monitor ibaBM-PN is a device for acquiring the cyclical data ex-
change between the PROFINET (PN) controller and PN devices. The device supports
PROFINET IO specification V2.35 and can be integrated in an existing PROFINET net-
work with one or more standard PN controllers.
The bus monitor has 2 independent, internal PN devices, which can be supplied with
data by PN controllers. A bus monitor can communicate with several PN controllers. For
this purpose, the device has to be integrated in a PN engineering project. The bus mon-
itor can be integrated in line or star topologies and can be connected as well to two
independent PROFINET lines.
The two PN devices each support S2 system redundancy independently of each other.
An additional license is required for this.
To act as sniffer, ibaBM-PN can be integrated into the PROFINET network without inter-
ferences using the TAP-interface (Ethernet). As a sniffer, the device monitors the data
exchange between PN controller and PN devices.
The entire communication via the TAP-interface is being mirrored to a monitor port and
can be recorded using an external network analysis tool.
On the optical-fiber side, ibaBM-PN works with the ibaNet protocol 32Mbit Flex. With this
protocol, measuring and configuration data are transferred via a bidirectional fiber optic
connection. The sampling rate and the data formats can be configured flexibly.
The both internal PN devices of the bus monitor can be configured independently in
ibaPDA. Each of the internal PN devices can capture up to 1440 bytes (incl. status bytes)
per cycle.
Furthermore, ibaBM-PN provides the function to acquire and record data as sniffer on a
SINAMICS Link and thus replaces the bus monitor ibaBM-SiLink in a functionally com-
patible way. SINAMICS Link is a special type of PROFINET communication for exchang-
ing PROFINET IRT data between Siemens SINAMICS controllers. SINAMICS Link is
based on a strict, straight network topology with a maximum of 64 PROFINET (PN) con-
trollers.
Each controller sends data that ibaBM-PN can read and acquire. The sampling time can
be decreased down to 500 µs when less controllers are connected.
Overview of the most important characteristic values:

2 independent internal PROFINET IO devices

Each PN device has a 2-port switch

Up to 4 controllers can be connected per device (shared device)

Up to 1440 bytes per device

TAP interface for sniffer function

Sniffer function on SINAMICS Link for Siemens SINAMICS Control Units equipped
with a CBE20 option board
Supported SINAMICS Link profiles:

64 devices, 16 words, 1 or 2 ms

16 devices, 16 words, 500 µs

12 devices, 24 words, 500 µs