西门子6ES7158-0AD01-0XA0 介质模块

西门子6es7158-0ad01-0xa0 介质模块

iec61131-3的程序结构

　　iec61131-3是plc的编程语言标准。iec61131-3是个，也是至今为止的工业控制领域的编程语言标准。iec

　　61131-3有三种pou：程序、功能块和功能。

　　功能是有多个输入参数和一个输出参数（返回值）的pou，返回值的名称与功能的名称相同，需要定义返回值的数据类型。调用具

　　有相同输入值的功能总是返回相同的结果。功能可以调用其他功能，但是不能调用功能块或程序。功能可定义的局部变量有var和var_input。

　　功能块是有多个输入/输出参数和内部存储单元的pou，功能块的输出参数值与其内部存储单元的值有关。功能块可以调用其他功能

　　块或功能，但是不能调用程序。

　　在调用功能块之前，在要调用功能块的pou中为每次调用声明功能块的实例，操作系统将为每次调用分配功能块的存储区

　　（类似于s7-300/400的背景数据块）。

　　功能因为没有内部存储区，调用时不需要实例化。

　　程序的行为和用途类似于功能块，程序具有输入和输出参数，而且可以具有内部存储区。程序通常包含有对功能和功能块的调用。

　　iec61131-3定义了若干标准的功能和功能块。

keyence sensor gt2-71n   in box

keyence sensor gt2-71n ( gt271n )   in box !

keyence sensor cz-k1 ( czk1 )   in box !

keyence sensor cz-h35s czh35s   in box free ship

keyence sensor controller hc-p1e / hc-50 control module

keyence sensor at3-400 2 month warranty

keyence sensor amplifier lv-n11p lvn11p   in box freeship

keyence sensor amplifier lv-12sb lv12sb   in box freeship

keyence sensor amplifier as-440-02 + sensor ah-110

keyence sensor amplifier - at3-400

keyence sensor

keyence scanner ls-5041r ls-5041t laser scan micrometer

keyence safety light curtain transmitter & receiver model:gh-r32h

keyence safety light curtain sl-v20h main unit general purpose20 optical axes

keyence safety light curtain sl-c series

keyence safety light curtain sl-32hm

keyence safety light curtain sensor sl-v24h-r , sl-v24h-l freeship

keyence safety light curtain assembly

keyence safety light curtain assembly

keyence safety grating controller good in pj-v90 condition forindustry use

keyence rv-41 comparator refurbished

keyence rv-41 comparator refurbished

keyence rv3-55bk sensor controller   in box

keyence rv2-52 multi-function digital meter

keyence rv2-52 high speed multi function digital meter w/ relayrv252  

keyence rv-10 at2-301 at2-53

keyence rj-800 operator interface touchscreen

keyence rgb sensor cz-v21ap czv21ap   in box freeship

keyence retro-reflective sensor head lv-s62 ( lvs62 )  in box !

keyence red dome light ca-ddr15 * *

keyence rd-50rk analog sensor controller

keyence rd-50r with 2 x at2-301 sensor controller

keyence rd-50r and at3-400 (lot of 2)

keyence rd-50r (b8)

keyence rd-50ek analog sensor controller- 

keyence rd-50 rd-50rk analog sensor controller  8301c

keyence pz-g62en

keyence pz-g102b

keyence pz2-51 lot of two  , not in box

keyence px-h71g sensor head

keyence px-h71g photoelectric sensor *  in box*

keyence ps-61 amplifier w/ ps-201 r/t sensors & 2 fs-20 sensors4 fu-77 cables

keyence ps-206

keyence ps-205 ps205 level sensor

keyence proximity sensor setup 3 ex-422 + mag bases + kv-u3ex-210

keyence proximity sensor gh-513

keyence proximity sensor eh-910   in box #4295326

keyence proximity sensor eh-910   in box

keyence pressure sensor gp-m250   in box

keyence pressure sensor gp-m250 (3)

keyence pressure sensor gp-m250 (2)

keyence pressure sensor gp-m250

keyence pressure sensor gp-m025 gpm025   in box freeship

keyence pressure sensor apv85w, ap-v85w, shipsamedayw/2-3daysshipping#1474y

keyence pressure sensor ap-15s ap-15s   in box

keyence pressure sensor ap-10s   in box

keyence pressure sensor ap-10s   in box

keyence pressure sensor ap-10s   in box

keyence pressure sensor amplifier ap - v85w,  

keyence power u5 kz-300 c32x c16x c32t working.

keyence power supply ms-h150 6.5a 2unit + ms-h50 2.1a 1unit

keyence power supply modules and power box

keyence power supply module ms2-h100 ms2-h150 lot of 2  working

keyence power supply 6.5 amp 24vdc din rail ms2-h150

keyence power controller ms-h150

keyence positioning module kv-mc40v   in box#6212556

keyence positioning module kv-mc40v   in box

keyence positioning module kv-h40s 2 month warranty

keyence position sensor sh-822, sh822, shipsamedayw/2-3daysshipping #1474s

keyence position amplifier eg-547so, eg-547, shipsamedayw/2-3daysshipping#1474t

keyence plckv-tf40

keyence plckv-n20v

keyence plckv-l20v

keyence plckv-h40s

keyence plckv-dn20

keyence plckv-cl20

keyence plckv-700  

keyence plckv-700

keyence plckv-3000

keyence plckv-1000

keyence plc, kv-5000, kv-lc20, kv-c64td, kv-c64xc, kv-l20v#1179w

keyence plc, kv-5000, kv-l20v, kv-cl20, kv-c64xc, kv-c32xc,kv-c64td #1179x

keyence plc set kz-u4 kz-a500 c32x c32t kz-l10 a connector latchmissing.

keyence plc set kz-u4 kz-a500 c32x 4ea c32t 4ea kz-l10 1ea

keyence plc ql-b1 ql-b1   in box #5020943

keyence plc ql-b1 ql-b1   in box

keyence plc programmable controller kv-5000 good in conditionfor industry use

keyence plc programmable controller kv-5000

keyence plc positioning module kv-h20s 2 monthwarranty  

keyence plc positioning module kv-h20s 2 month warranty#8450526

keyence plc positioning module kv-h20s 2 month warranty

keyence plc module kz-n20z good in condition for industryuse

keyence plc module kz-n20z

keyence plc module kz-an6 tested  

keyence plc module kz-an6 tested  

keyence plc module kv-eb1r

keyence plc module kv-24dt base unit dc type 16 inputs and 8transistor outputs

keyence plc module kv-16at  

keyence plc kz-u5 a500 c32x c32t h2 +hmi terminal

keyence plc kz-u4 . kz-300 .kz-l2

keyence plc kz-350 kz-c32x kz-c16x kz-c32t,1pcs, ,free expeditedshipping

keyence plc kz-300 , c32x , c32t (9)

keyence plc kv-e16t   in box #3442066

keyence plc kv-e16t   in box

keyence plc kv700 w/ l20 , b16xa , b16ra (9)

keyence plc kv-700 cpu module / kv-u7. kv-c32xa . kv-c32ta

keyence plc kv-5000 kv-5000   in box #5098238

keyence plc kv-5000 kv-5000   in box

keyence plc kv40r / omron plc controller

keyence plc kv-40dt kv-40dt   in box

keyence plc kv-40dt kl-n10v kv-e16t kv-e16x, 1set,  , freeexpedited shipping

keyence plc kv-40dr w/ kv-e8r (j1)

keyence plc kv-40dr kv40dr   in box free ship

keyence plc kv-40at   in box free ship

keyence plc kv-40at

keyence plc kv-300 , u5 , c32x , c32t , l2 (f1)

keyence plc kv-300 , u5 , c32x , c32t , b16r , l2 (a1)

keyence plc kv-24dt   in box