WEST控制器分组合逻辑控制器和微程序控制器,两种控制器各有长处和短处。WEST微程序控制器设计方便,结构简单,修改或扩充都方便,修改一条机器指令的功能,只需重编所对应的微程序;要增加一条机器指令,只需在WEST控制存储器中增加一段微程序。WEST组合逻辑控制器又称硬布线控制器,由逻辑电路构成,完全靠硬件来实现指令的功能。 Process controller WEST 6170+/8170+/4170 Remote Setpoint Option Modbus Communications Transmitter Power Supply Open Loop Valve Control with or without Position Indication Jumperless Configuration Improved 'Plus Series' Interface Available in 1/16 DIN, 1/8 DIN and 1/4DIN Formats Programmable digital process controller CAL 9500P West Control Solutions Full PID auto-tuning process controller Total of 3 outputs, from 4-20mA, 0-5v, 0-10v, SSR drive, relay Input options: Thermocouple 2 or 3 wire PT100 0-50mV, 0-5V, 0-10V, 0-20mA, 4-20mA Alarms with 5 options Heat-cool operation Programmer operation Sleeve mounting for easy maintenance IP66 protection from front panel CE, UL & CSA approvals