钥匙开关所有的350-374型CPU都有钥匙开关，但是一些版本的CPU固件并不支持钥匙开关的所有功能(参看本章之前的“CPU 版本的说明”) .这些不同在这部分中加以说明，注意在一些CPU中的钥匙开关标记有ONOFF和OFF/STOP，

RTA PAVIA GMH 06 STEPPER DRIVE

MORLAN FLEX-CORE TRANSDUCER CT5-005E

ALLEN BRADLEY 1792D-4BVTAD SERIES A INPUT MODULE, NIB

ALLEN BRADLEY 1792D-4BV0D SERIES B INPUT MODULE, NIB

ALLEN BRADLEY 1792D-4BV0D SERIES B INPUT MODULE, SEALED

TRIPLETT CORP. 12D, 0-5 DCV, 152-336, LOT 10

MITUTOYO APL-315L INPUT UNIT 164-663-1

WATTS, C20-02FRLWJCW, COMBINATION SERIES, 1/4″ NPT, MAX

PEERLESS-WINSMI?TH ELECTRICS PVM16 100-16-5051-5 BLOWER

DYNAPAR 16002600210 COUNTING WHEEL GEAR, 120 TEETH, 5/8

MANNESMANN REXROTH Z2S 6-2-64 SANDWICH MODULE LOT OF 15

NUMATICS, SH10601TB13CS4, LINEAR SLIDE CYLINDER, 1 1/16

HIRSCHMANN MICE MEDIA MODULE MM2-4TX1

FOXBORO M/40MR-RSM2F ELECTRONIC SERVO ELEMENT CHART REC

BANNER S186ELD LASER LIGHT , NIB