ibaLink-VME0 pages

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ibaLink-VME
In brief
I Connection of VME based PLC systems to
ibaPDA-V6 or ibaLogic
I Backwards compatible to ibaLink-SM-128V-i-2o
I Can be used in all common VME32 and VME64 systems
I Bidirectional fiber optic link for analog and digital
inputs and outputs
I Unidirectional fiber optic link for analog and digital
outputs or diagnosis
I Supported ibaNet protocols: 3Mbit, 32Mbit and
32Mbit Flex
I Flexible setting of data rate, data size and formatting
with 32Mbit Flex
I Different operation modes (cascading, peer-to-peermode)
I Power supply via VMEbus
I Fast data transfer due to Dual Port RAM technology
I Block consistent mode

Description
The ibaLink-VME card can be used to connect VME based
PLC systems via ber optics to the data capturing system
ibaPDA-V6 or the Soft-PLC ibaLogic in order to transfer
measured data.
ibaLink-VME is the successor of the ibaLink-SM-128Vi-2o card and completely compatible with the previous
functions in 3Mbit mode. Moreover ibaLink-VME offers
new functions using the ibaNet protocols 32Mbit and
32Mbit Flex.
ibaNet protocols
Depending on the ibaNet protocol the card supports different applications:
3Mbit: This mode is compatible with the predecessor
ibaLink-SM-128V-i-2o. Cascading of up to 8 devices is
possible on the input and output (I/O extension for PLC
systems) and 2x 64 analog + 64 digital values can be
transmitted with a xed rate of 1 ms.

Supported VME systems and modes
The ibaLink-VME can be used in both VME32 and VME64
systems. The card occupies 256 kbyte of VME addressing
space. The address can be congured using DIP switches.
The following modes of VME access are supported:
Addressing modes A24, A32, A40, A64 with data formats 8/16/32 bit (D08/D16/D32/MD32)
8/16/32/64 block transfer modes (BLT/MBLT)
When consistency of a complete data block is needed, a
special „consistency mode“ could be enabled by setting a
DIP switch.

Peer-to-peer connection of 2 systems in
32Mbit mode and additional diagnosis

32Mbit: Two VME systems can be coupled in peerto-peer mode. On the 2nd diagnostic output parallel
measuring with ibaPDA is possible. The update rate can
be adjusted between 50 µs and 1.4 ms.
32Mbit Flex: This mode provides the highest exibility
for data exchange with ibaPDA, since transmission
rate, size and formatting of data can freely be set. For
small amounts of data the cycle time can be faster, up
to 25 µs with 65 bytes. The maximum amount of data is
4060 bytes at 1.4 ms. Moreover, with 32Mbit Flex, it is
possible to connect up to 15 devices in a ring topology.

In 32Mbit Flex mode, up to
15 devices can be connected

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