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No.EX##-OMI0032-C
Terms
Meaning
G
GW unit
A unit used to connect protocols conforming with different standards in one
network. In this system, it is regarded as a unit to adjust between
PROFIBUS DP protocol and SMC dedicated protocol and connect them.
ID number
Number of 16bit allocated from PNO to identify product.
Impedance
A resistance generated when alternating current is applied to a circuit.
Referred to as alternating current resistance.
Input delay time
Refer to "Transmission delay".
I
Input point
The number of point which can receive information from an input equipment
(sensor, switch etc.).
L
LED
An abbreviation of Light Emitting Diode meaning a kind of semiconductor
element which emits light when current is applied.
M
Manifold
A component used to join many valves into one.
N
NPN output
An output configuration which operates an output equipment by using NPN
transistor. Referred to as positive common type because positive potential is
applied to common wire of power supply.
Opt-coupler insulation
A method for insulation by converting an electric signal to an optic signal once
and using an element called opt-coupler which shows "1" and "0" when turned
on and off. An opt-coupler has a part to convert an electric signal to an optic
signal or opposite of it and so can be separated electrically and insulated.
O
Output point
The number of point which can operate an output equipment (solenoid valve,
light and motor starter etc.)
PLC
(Programmable Logic Controller)
An abbreviation of Programmable Logic Controller. It controls timely along
with a program for logic algorithm, sequential operation and arithmetic
operation.
PNP output
An output configuration which operates an output equipment by using PNP
transistor. Referred to as negative common type because negative potential
is applied to common wire of power supply.
Power supply connector
A connecting part to apply power to a product.
Power supply voltage range
A range of power supply voltage to operate a product normally.
P
PROFIBUS DP
Fieldbus jointly developed by Siemens, Bosch, ABB, etc. in Germany in
1980’s. PNO (PROFIBUS Nutzerorganisation e.V) starts for the PROFIBUS
DP spread.
R
Rated voltage
A optimum value of power supply voltage applied to a product. It can ensure
normal operation of a product with this voltage in specified operating
environment.
Serial transmission
A method to enable large information to be sent and received sequentially in
one communication line by aligning them in line.
Short protection
A method to protect an internal circuit from being damaged when power
supply and GND terminal are shorted.
SI unit
An abbreviation of serial interface. It sends and receives data by bit through
a couple of signal lines, convert it to parallel and correspondingly control
connected load. (A serial-to-parallel converting unit)
S
SYNC function
A function that the output data of the GW unit synchronizes with the SYNC
command from the master.
Terminating resistor
A resistor mounted on both ends of wiring for connecting equipment to field
bus. It prevents reflection of a signal at the end and subsequent disturbance
of the signal.
T
Transmission delay
A time delay from when a specified input passes a reference point until when
an output reaches the reference point.
