The fieldbus coupler ibaW-750 is designed to integrate I/O modules of the 750 series from WAGO and K-bus terminals from Beckhoff into the iba system. The remote I/O system is connected to the ibaPDA system via Ethernet.
The WAGO I/O system of the 750 series is an ideal supplement to the iba system. Digital and analog I/O modules can be integrated into the system as well as incremental encoders, SSI inputs, RTDs, thermocouples and measuring bridges.
Up to 255 WAGO I/O terminals can be connected to a ibaW-750 device.
Acquisition of measured values via Ethernet
ibaW-750 connects the K-bus I/O system to the ibaPDA data acquisition system via Ethernet. The signals are converted in the device and are available via the Ethernet interface. The ibaPDA system can be connected via an Ethernet card. ibaW-750 works with the new ibaNet-E protocol. The two 10/100 Mbit Ethernet interfaces offer a switch function.
One connection to one ibaPDA system is possible per ibaW-750 device, whereby the sampling rate is freely selectable from 1 Hz to 1 kHz.
Automatic detection
The device including the connected I/O modules are automatically detected in ibaPDA if ibaW-750 and the ibaPDA computer are in the same LAN. ibaPDA synchronizes all ibaW-750 systems connected to it, enabling isochronous measurement of multiple remote I/O systems via Ethernet.
Coupling to K-bus
A maximum data volume of 2048 bytes can be transferred via the K-bus. The sampling rate depends on the cycle time on the K-bus.
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I/O range: Not all of the WAGO terminal range can be used. Contact iba AG if in doubt. This also applies to the compatible, in principle, modules of Beckhoff. A description of the supported terminals can be found in chapter Terminal types. Before project engineering, check for each terminal type which transmission capacity is required. |
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Terminal diagnostics: With the exception of complex terminals no diagnostic information is supported. |
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Restrictions when operating with ibaPDA While all iba devices normally deliver exactly 1 ms synchronized simultaneous snapshots of the process, this cannot be guaranteed when using the WAGO750 I/O system. This is particularly due to the structure of the internal serial I/O bus (K-bus). Further on, the cycle time depends on the number of channels connected to a station. Especially analog channels and counters (terminals with a high number of bits) decrease the bus cycle, and cycle times may take several milliseconds. When several stations are used simultaneously, different cycle times may cause phase differences of up to 10 ms. This means the simultaneous measurement of a huge number of signals < 10 ms cannot be guaranteed. However, the RTD and thermocouple inputs are also a valuable addition to the capabilities of the ibaPDA recording system. |
Overview of the most important characteristic values
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DC 24 V direct current supply (±10 %), to supply the device and the K-bus.
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The power supply is able to supply I/O modules with a max of 1.7 A. If more current is needed, additional power supply modules must be integrated within the K-bus.
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Rugged plastic chassis with DIN-rail mounting
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LED display for operating status, ibaPDAconnection, K-bus and errors
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2 10/100 Mbit-Ethernet interfaces with switch function
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Automatic detection of devices and modules in ibaPDA (within the same LAN)
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Flexible setting of sampling rate