App.-4
Appendix
RSP (remote set point)
Remote SP
An SP sent from an external device. The C1M does not have an RSP function.
RTD (resistance temperature detector)
An RTD consists of a resistance element composed of unshielded wires made from
a material such as platinum, internal lead wires, a protective tube, terminals, etc.
It measures temperature by utilizing the fact that the electrical resistance of the
resistance element changes with temperature. The operating temperature range is
−200 to + 500 °C for platinum resistance temperature detectors.
S
SCR (silicon controlled rectifier)
A thyristor (power regulator).
It is composed of semiconductor element transistors and is used for heater control
in combination with a controller that continuously outputs a current signal for
proportional control.
SLP (Smart Loader Package)
Application software that runs on a computer and facilitates configuration and
monitoring of Azbil controllers.
SP (set point)
The target value
A set point specified by controllers, etc. It is also called the SV (set value).
SSR (solid-state relay)
Used for heater control in combination with a controller that outputs voltage pulses.
ST (self-tuning)
A function that automatically sets PID values when the set point is changed or a
disturbance occurs. Unlike auto-tuning, the controller determines when to activate
this function.
T
T/C (thermocouple)
Used for temperature measurement. For the purpose of generating
thermoelectromotive force, one end of two kinds of metal wires is electrically
connected. The combinations of metals in commonly used thermocouples include
platinum–platinum rhodium (R thermocouple), alumel-chromel (K thermocouple),
iron-constantan (J thermocouple), and copper-constantan (T thermocouple).
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