Last update: Thursday, May 17, 2007 01:26:04 PM
DATA ACQUISITION
What is Data Acquisition?
What are Nano Cards?
What is an Analog Input?
What is a Relay Output?
What is an Optically Isolated Status?
What is a DAC (4-20mA)?
What is an Accumulator Input?
What is an Instrumentation Interface?
What is an LCD Display?
What is a Modbus Scanner?
Question:
What is SCADA?
Answer: SCADA (Supervisory Control And
Data Acquisition) networks are utilized for industrial measurement and
control systems that enable remote monitoring and control for a variety of
industrial devices. It consists of a Master Terminal Unit which is
used to monitor and control several Remote Terminal Units.
Answer: Data acquisition refers to the method used to access and control information or data from the equipment being controlled and monitored. The data accessed are then forwarded onto a telemetry system ready for transfer to the different sites. They can be analog and digital information gathered by sensors, such as flowmeter, ammeter, etc. It can also be data to control equipment such as actuators, relays, valves, motors, etc.
Answer: Nano cards measure sensors such as pulses, voltage, temperature, pressure, etc. They can also perform functions such as turning something on or off and opening or closing something.
Answer: An Analog Input is a nano card that measures voltage.
Answer: A Relay Output is a nano card that performs a function by turning something on or off.
Answer: An Optically Isolated Status is a nano card that performs a function by opening or closing something.
Answer: A DAC (4-20mA) is a nano card that performs a function to send output by converting digital signals to analog.
Answer: An Accumulator Input is a nano card that performs a function to count pulses.
Answer: An Instrumentation Interface is a nano card is used with low voltage.
Answer: An LCD Display is used to display data from the nano cards and holds up to 32 characters (2 lines of 16 characters each).
Answer: A Modbus Scanner is used for communication with nano cards and can also do calculations from the data it collects from nano cards.
