GE VersaPoint IC220PB001, User Manual

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B-4 VersaPoint™ I/O System Profibus-DP NIU User’s Manual – August 2005 GFK-1911B
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Power-level terminal Power-level terminals are used to switch single-
phase or multi-phase power actuators (e.g., motors or lighting).
Power terminal The power terminal is a supply terminal. It supplies the
main voltage to the station-internal voltage jumper. In addition to the main
voltage, the segment voltage may be supplied or tapped off from the main
voltage. Several power terminals can be used in a VersaPoint station. It
realizes the electrical isolation between the different current circuits and
permits areas with different voltages within the station (e.g., 24VDC and
230VAC).
Protocol A protocol is a set of conventions. It defines data formats and
control procedures for communication between devices and processes.
Segment circuit The segment circuit or auxiliary circuit supplies the
VersaPoint station modules with the segment voltage (U
S
). The segment
circuit starts at the NIU or at a supply terminal
(
power terminal or segment
terminal) and is led through all modules to the supply terminal. It is used to
create isolated circuits within the station.
Segment terminal The segment terminal is a supply terminal and is used to
create a subcircuit
(
Segment circuit).
Sensor A sensor is a device that records the physical quantities of a
process. The sensor determines the process variables.
Supply terminal Supply terminals in a VersaPoint system are power
terminals and segment terminals.
Supply voltage A specific value to be given in volts.
Voltage supply All components used to generate and transmit the supply
voltage.