The ibaBM-DP device has to be operated with an external DC voltage 24 V (unregulated) with a maximum current consumption of 500 mA. The operating voltage should be supplied using the 2-pin Phoenix screw connector included in delivery. If desired, you can order DIN-rails or plug-in power supply units from iba.
The device can be switched off by disconnecting it from the voltage supply.
Switching the device on and off is without interferences regarding the PROFIBUS, i. e. the PROFIBUS communication on the DP line will continue without disruption when the device is switched off.
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In case you use active slaves in ibaBM-DP, the master detects these slaves as failed. Take the right measures in the program of the master for coping appropriately with slave failures (e. g. by configuring the error OBs with a SIMATICS7 CPU). |
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If ibaBM-DP should be the last device on the bus line, the bus has to be terminated via the termination resistor on the PROFIBUS connector. When switching off ibaBM-DP, the correct termination is not guaranteed any longer, as the voltage supply for the bus is missing. This may lead to malfunctions on the PROFIBUS. |