西门子6ES7193-4BA00-0AA0 辅助模块

西门子6ES7193-4BA00-0AA0 辅助模块

S7-300/400与IEC61131-3程序结构的区别

　　1）S7-300/400的功能可以有多个输出参数，返回值也属于输出参数。IEC61131-3的功能只有一个返回值。

　　2）IEC61131-3的功能块用于保存局部变量的存储区是在声明功能块的实例时分配的，它对用户是不透明的，其他POU不能直接访问该存储区。

　　S7-300/400的功能块的局部变量（不包括临时变量）保存在它的背景数据块中。其他POU可以访问背景数据块中的变量。如果需要多次调用同一个功能块来控制同一类型的被控对象，每次调用都需要指定一个背景数据块，但是这些背景数据块中的变量又很少，这样在项目中就出现了大量的背景数据块。可以使用多重背景数据块来减少背景数据块的数量。但是需要增加一个用来管理多重背景的功能块。

　　3）S7-300/400的功能块的局部变量有临时变量和静态变量，IEC61131-3的功能块的内部变量Var相当于S7-300/400的静态变量。

KEYENCE PLC KV-1000 KV-B16RA KV-B16XA KV-L20R   good PLC-I-18

Keyence PLC KV-1000 CPU Module free ship

Keyence PLC KL-N20Z , KZ-350 , L2 , MT-T2 , KZ-U5 (9)

KEYENCE PLC Double display panel KV-P16TL good in condition for industry use

KEYENCE PLC Double display panel KV-P16TL

KEYENCE PLC Double display panel KV-P16TC good in condition for industry use

KEYENCE PLC Double display panel KV-P16TC

KEYENCE PLC DD-860 Amplifier Unit NPN

KEYENCE PLC DD-860

KEYENCE PLC CPU MODULE KV-700 1PCS,  , Free Expedited Shipping

Keyence PLC CPU KV-1000 KV-U7 KV-TF40 KV-B16RA

Keyence PLC controller KV-1000 good in condition for industry use

Keyence PLC controller KV-1000

Keyence PL465H Head Monitor

Keyence Pkg: LK-G3001V Controller+SL-U2 Power Supply+LK-H1W Software+2 Sensors

Keyence PJV91 PJ-V91 Module -   No Box

KEYENCE PJ-V90 SAFETY LIGHT CURTAIN CONTROLLER W/ KEY PJ- V91 MODULE

Keyence PJ-V90 Light Curtain Expansion Unit T62567

KEYENCE PJ-V90 LIGHT CURTAIN CONTROLLER WITH KV-U3

KEYENCE PJ-V90 LIGHT CURTAIN CONTROLLER

KEYENCE PJ-V90 (PJV90) LIGHT CURTAIN EXPANSION UNIT

KEYENCE PJ-V90 (no key) Free Ship

KEYENCE PJ-V22T, PJ-V21T, PJ-V20T SAFETY LIGHT CURTAIN TRANSMITTER * *

KEYENCE PJ-V22T SAFETY LIGHT CURTAIN TRANSMITTER *  OUT OF A BOX*

Keyence PJ-V22T Safety Light Curtain PJV22T -  

Keyence PJ-V22T PJ-V21T PJ-V20T Safety Light Curtain Transmitter Set

Keyence PJ-V22T Light Curtain Transmitter PJ-V21T working PJ-V20T

KEYENCE PJ-V22R, PJ-V21R, PJ-V20R SAFETY LIGHT CURTAIN RECEIVER * *

Keyence PJ-V22R Sensor Safety Light Curtain Receiver Extension Unit PJV22R Nnb

KEYENCE PJ-V22R SAFETY LIGHT CURTAIN RECEIVER *  OUT OF A BOX*

Keyence PJ-V22R PJ-V20R PJ-V21R Safety Light Curtain -  

Keyence PJ-V22R Light Curtain Receiver PJ-V21R working PJ-V20R

Keyence PJ-V21T, PJ-V20T Safety Light Curtain Transmitter (ELE3945)

KEYENCE PJ-V21T SAFETY LIGHT CURTAIN TRANSMITTER *  OUT OF A BOX*

Keyence PJ-V21T Safety Light Curtain

Keyence PJ-V21R, PJ-V20R Safety Light Curtain Receiver (ELE3946)

Keyence PJ-V21R, PJ-V20R Safety Light Curtain Receiver (ELE3944)

KEYENCE PJ-V21R SAFETY LIGHT CURTAIN RECEIVER*  OUT OF A BOX*

Keyence PJ-V21R Safety Light Curtain

Keyence PJ-V21 Safety Light Curtain Transmitter and Receiver 140mm  

Keyence PJ-V21 Safety Light Curtain Set Receiver & Emitter PJV21  

Keyence PJ-V21 Light Curtain Extension Kit - PJ-V21R & PJ-V21T -   In Box !!

Keyence PJ-V20T, PJ-V21T Safety Light Curtain Transmitter (ELE3943)

Keyence PJ-V20T Safety Light Curtain Transmitter Base Unit T62551

Keyence PJ-V20T Light Curtain Transmitter PJ-V20R Receiver PJ-V90 Controller Set

KEYENCE PJ-V20T * *

Keyence PJ-V20R Safety Light Curtain Receiver Base Unit T62564

KEYENCE PJ-V20R * *

KEYENCE PJ-V20 *  IN BOX*

Keyence PJ-G90 Controller PJG90

KEYENCE PJ-50A SAFETY LIGHT CURTAIN EMITTER & RECEIVER (  IN BOX)

Keyence PJ-50A Expandable Area Light Curtain Sensor Set PJ-55A   Working

KEYENCE PI-G70 SENSOR AMPLIFIER  

KEYENCE PIC92 **NIB**

KEYENCE PI-C40 PHOTOELECTRIC COLOR (  IN BOX)

Keyence Photoelectric Sensor Set FS-V1, PS-T2, PS-49C   Working

KEYENCE Photoelectric Sensor PX-H71TZ PXH71TZ   in box free ship

KEYENCE photoelectric sensor PS-56C

KEYENCE PHOTOELECTRIC SENSOR FS-V21RP

Keyence Photoelectric Sensor FS-L71 Lot of 2   Working

KEYENCE PHOTOELECTRIC LASER SENSOR MODEL LK-503

KEYENCE PHOTOELECTRIC LASER SCANNING HEAD LS-3060T

Keyence Photoelectric Fiber Optic Sensors LV-11SA, PS-201C, PS-Ti, FS-V11, LVS41

KEYENCE PHOTOELECTRIC COLOR PI-C40 *  IN BOX*

Keyence Output Module KV-C32TC KVC32TC   in box free ship

Keyence Optical Transmissive Fiber Sensor FU-E40 FUE40   in Box Free Ship

Keyence Optical Fiber Sensor FU-E40   IN BOX

KEYENCE optical fiber amplifier FW-V25  

Keyence Operator VT2-7SB Panel AS 60 days warranty

Keyence operator panel VT-5MB free ship

Keyence Operator Panel KV-D30   , w/ KV-24DR (A1)

KEYENCE OPERATOR INTERFACE VT3-Q5T 24VDC good in condition for industry use

KEYENCE OPERATOR INTERFACE PANEL VT3-Q5S

KEYENCE Operator Interface Panel Monitor VT2-5TB for industry use

KEYENCE Operator Interface Panel Monitor VT2-5TB

KEYENCE OPERATOR INTERFACE PANEL LS-D501

KEYENCE OPERATOR INTERFACE DISPLAY SCREEN CV-551 CV551

KEYENCE OP-87444 MONITOR POWER CABLE 4 POLE FEMALE STRAIGHT 5 METERS,  *

KEYENCE OP-84231   Free Ship

Keyence OP-51640 Ring lighting for VH-Z100

KEYENCE OMRON VT3-Q5S TESTED! QUANTITY! OPERATOR TOUCHSCREEN INTERFACE

KEYENCE NX-50CL CC-LINK NETWORK CONTROLLER 24VDC 500mA

Keyence NR-TH08 Free Ship

Keyence NR-ST04  

Keyence NR-ST04 Module  

Keyence NR-ST04 Free Ship

Keyence NR-HA08 + Keyence NR-500

Keyence NR-600 Free Ship

KEYENCE NR-2000 Data Acquisition System 400kHz FreeShip

KEYENCE NR-2000 400KHZ DATA ACQUISITION SYSTEM Japanese language

KEYENCE N-R2 Communication Unit,RS-232 Type & Ultra Small 2D Code Reader tested

KEYENCE NR-1000 Free Ship

Keyence N-L1 SR-6002D Code Reader w/SR-610

KEYENCE   PG-610+PG-602 SHA22 Fiber Amplifier Sensor

KEYENCE   LV-NH100 SHA22 (LVNH100) Fiber Amplifier Sensor

KEYENCE   LV-N11N SHA22 (LVN11N) Fiber Amplifier Sensor

KEYENCE   LV-H52 SHA22 (LVH52) Fiber Amplifier Sensor

Keyence   LV-H110 0JK1 Laser Sensor 60 Days Warranty

KEYENCE   In Box programmable controller KV-16AT

KEYENCE   In Box KV-C64XC programmable controller

KEYENCE   In Box KV-C64TC programmable controller

KEYENCE   GT2-H12K SHA22 (GT2H12K) Fiber Amplifier Sensor

KEYENCE   GT2-H12K PLC

KEYENCE   F-5 SHA22 (F5) Fiber Amplifier Sensor