PMC234 FORCE 晶体管隔离

FOXBORO 130K-N4-LLPF
FOXBORO 14A-FR
FOXBORO AD198GV
FOXBORO AD202MV
FOXBORO AD202MW
FOXBORO AD207AV
FOXBORO AD908MF
FOXBORO AD908MF
FOXBORO C0136-HZ
FOXBORO CM902WX
FOXBORO CMP10
FOXBORO CP30
FOXBORO CP30
FOXBORO CP40

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Description

开关量是指只有开和关(或1和0)两种状态的信号,模拟量是指连续变化的量。常用的I/O分类如下:开关量:按电压水平分,有220VAC、110VAC、24VDC,按隔离方式分,有继电器隔离和晶体管隔离。模拟量:按信号类型分,有电流型(4-20mA,0-20mA)、电压型(0-10V,0-5V,-10-10V)等,按精度分,有12bit,14bit,16bit等。除了上述通用IO外,还有特殊IO模块,如热电阻、热电偶、脉冲等模块。

NOVATEC MCD-1001 DISPLAY UNIT MCD1001

NEW WAVETEK MODEL 171 SYNTHESIZER / GENERATOR

NEW HONEYWELL M740A1020 ACTUATOR MOTOR M740A-1020

COMPUMOTOR SX8-DRIVE CONTROLLER