1738-IB4M12控制器
1738-IB4M12控制器
1738-IB4M12控制器
PLC点阵键盘
在工控行业中，有时候会碰到因为可编程控制器（PLC）输入点的不够，而导致需要更换设备，浪费资源。对此，当实时性不需要那么高时，我们可以编写一个键盘的扫描程序来扩展输入的点数。因为扫描的方式是循环扫描，所以在实时性方面会有一定的欠缺。
下面是用海为PLC编程软件编写的8乘6的48键扫描程序。需要用到8个输入点，6个输出点，硬件连接如下图所示：
注：当要求实现组合按键时上图的二极管必须加，反之二极管可加可不加。
扫描的点是令Y0~Y5循环输出，当有按钮按下时，就会做出相应的动作，例如：当按钮键0按下时，则X0接通，当程序扫描到Y0时，X0与Y0形成一个回路， 表示按键“0”按下。程序如下图所示：
结论：键盘是以循环扫描的方式来进行输入，而扫描的时间越短则实时性越好。但是当扫描时间过短时会因Y0~Y5输出结束时，X0仍未接通导致无法产生输出信号。或者当Y0输出结束，Y1也输出结束时，X0仍未断开，导致误判断。
经过型号SW-S32ZS220T测试可知每次循环扫描的时间T0不得低于20ms。建议可将滤波时间设得短一点，则可以缩短每次循环扫描的时间T0，例如：本例中将滤波时间设为0.8ms，则每次循环扫描的时间T0可以设到***短10ms。
SIEMENS 6FX1-120-2CA01 USPP 6FX11202CA01
ASEA BROWN BOVERI YB161101-GK USPP YB161101GK
One Panasonic AC Servo Driver MSDA083D1A 750W Free Ship
SIEMENS 6FC5-203-0AB12-0AA0 USPP 6FC52030AB120AA0
PANASONIC NACHI AC SERVO MOTOR MFM MFM552Q3V 5.5KW
TEXAS INSTRUMENTS PLC 961642 USPP 961642
Texas Instruments 46191 PC Board
ITE SIEMENS CED63B015L NSFP CED63B015L
TEXAS INSTRUMENTS 500-2151-A POWER SUPPLY 5002151A
BAILEY CONTROLS 6637827B1 NSPP 6637827B1
Panasonic Servo MSD023A1XX & Motor M***022A1F 200W
Panasonic AC Servo Motor M***022A1E new in box free ship
TEXAS INSTRUMENTS PLC 500-5016 USPP 5005016
ASEA BROWN BOVERI R512H6B1N4NN1N NSPP R512H6B1N4NN1N
ASEA BROWN BOVERI 57310001-GP USPP 57310001GP
FOXBORO 230***-A USPP 230***A
560-2820 TI Texas Instruments Power Supply 5602820
Texas Instruments 2460221-0001
ASEA BROWN BOVERI AF260-20-22-72 NSFP AF260202272
ARO 39566013 NSPP 39566013
TEXAS INSTRUMENTS PLC 530-1104 NSFP 5301104
MOOG 152D-423A USPP 152D423A
TEXAS INSTRUMENTS PLC 505-6108 USPP 5056108
M***A042A1G Panasonic AC Servo Motor Free Ship
TEXAS INSTRUMENTS PLC 545-1102 USPP 5451102
ASEA BROWN BOVERI E-32235 USPP E32235
(AS01) MSD043A1X PANASONIC AC SERVO DRIVE USED WORKING
ASEA BROWN BOVERI 3BSE005831R1 NSPP 3BSE005831R1
Panasonic Servo Motor M***042P1A 400W Free Ship
TEXAS INSTRUMENTS PLC 505-4316 NSPP 5054316
Texas Instruments 2497284 PC BD PM550 CMU-7K
MODICON P2-984A-816 USPP P2984A816
BAILEY CONTROLS 6637827B1 NSPP 6637827B1
ASEA BROWN BOVERI DSQC-239 USPP DSQC239
GE FANUC IC646NMP000 NSFP IC646NMP000
Panasonic AC Servo Motor M***152A2D 200V 9.4A
WEINIG 1LA5131-2FB90-ZX51 USPP 1LA51312FB90ZX51
PANASONIC MSDA043A1A MINAS-A AC SERVO DRIVER 400W NIB NEW
Panasonic AC Servo Drive MQDB011AAD03 new 0190-19214
Texas Instruments PM550-400 Loop Access Module PM550400
ASEA BROWN BOVERI 3ASD573001A1 USPP 3ASD573001A1
Panasonic AC Servo Drive MCDCT3312B12
Lot of 2 Panasonic AC Servo Motor M***A041A1E
ASEA BROWN BOVERI E-32235 USPP E32235
TEXAS INSTRUMENTS PLC 510 NSFP 510
Texas Instruments 500-5020
GENERAL ELECTRIC CK08CE311J NSFP CK08CE311J
TEXAS INSTRUMENTS PLC 505-4016A NSFP 5054016A
HOFFMAN C-SD302410SS NSPP CSD302410SS
TEXAS INSTRUMENTS PLC 505-CP1434TF NSPP 505CP1434TF
SIEMENS 6ES5-923-3UA11 NSFP 6ES59233UA11
TEXAS INSTRUMENTS PLC 500-5055 USPP 5005055
Texas Instruments 7MT210
Panasonic AC Servo Driver MSD013A1XX07 FreeShip
TEXAS INSTRUMENTS PLC 305-LIC USPP 305LIC
TEXAS INSTRUMENTS PLC PM550-5040 USPP PM5505040
Perceptron 140-0138 Replacement Laser Module
ALLEN BRADLEY 512-CJB-6P-24R NSPP 512CJB6P24R
Texas Instruments 5TI-2000
OMRON F10-S15R USPP F10S15R
TEXAS INSTRUMENTS PLC 945075-0001-V USPP 9450750001V
TEXAS INSTRUMENTS PLC 2490871 USPP 2490871
TEXAS INSTRUMENTS 500-5061 OUTPUT MODULE 5005061
1738-IB4M12控制器
1738-IB4M12控制器
PLC点阵键盘
在工控行业中，有时候会碰到因为可编程控制器（PLC）输入点的不够，而导致需要更换设备，浪费资源。对此，当实时性不需要那么高时，我们可以编写一个键盘的扫描程序来扩展输入的点数。因为扫描的方式是循环扫描，所以在实时性方面会有一定的欠缺。
下面是用海为PLC编程软件编写的8乘6的48键扫描程序。需要用到8个输入点，6个输出点，硬件连接如下图所示：
注：当要求实现组合按键时上图的二极管必须加，反之二极管可加可不加。
扫描的点是令Y0~Y5循环输出，当有按钮按下时，就会做出相应的动作，例如：当按钮键0按下时，则X0接通，当程序扫描到Y0时，X0与Y0形成一个回路， 表示按键“0”按下。程序如下图所示：
结论：键盘是以循环扫描的方式来进行输入，而扫描的时间越短则实时性越好。但是当扫描时间过短时会因Y0~Y5输出结束时，X0仍未接通导致无法产生输出信号。或者当Y0输出结束，Y1也输出结束时，X0仍未断开，导致误判断。
经过型号SW-S32ZS220T测试可知每次循环扫描的时间T0不得低于20ms。建议可将滤波时间设得短一点，则可以缩短每次循环扫描的时间T0，例如：本例中将滤波时间设为0.8ms，则每次循环扫描的时间T0可以设到***短10ms。
SIEMENS 6FX1-120-2CA01 USPP 6FX11202CA01
ASEA BROWN BOVERI YB161101-GK USPP YB161101GK
One Panasonic AC Servo Driver MSDA083D1A 750W Free Ship
SIEMENS 6FC5-203-0AB12-0AA0 USPP 6FC52030AB120AA0
PANASONIC NACHI AC SERVO MOTOR MFM MFM552Q3V 5.5KW
TEXAS INSTRUMENTS PLC 961642 USPP 961642
Texas Instruments 46191 PC Board
ITE SIEMENS CED63B015L NSFP CED63B015L
TEXAS INSTRUMENTS 500-2151-A POWER SUPPLY 5002151A
BAILEY CONTROLS 6637827B1 NSPP 6637827B1
Panasonic Servo MSD023A1XX & Motor M***022A1F 200W
Panasonic AC Servo Motor M***022A1E new in box free ship
TEXAS INSTRUMENTS PLC 500-5016 USPP 5005016
ASEA BROWN BOVERI R512H6B1N4NN1N NSPP R512H6B1N4NN1N
ASEA BROWN BOVERI 57310001-GP USPP 57310001GP
FOXBORO 230***-A USPP 230***A
560-2820 TI Texas Instruments Power Supply 5602820
Texas Instruments 2460221-0001
ASEA BROWN BOVERI AF260-20-22-72 NSFP AF260202272
ARO 39566013 NSPP 39566013
TEXAS INSTRUMENTS PLC 530-1104 NSFP 5301104
MOOG 152D-423A USPP 152D423A
TEXAS INSTRUMENTS PLC 505-6108 USPP 5056108
M***A042A1G Panasonic AC Servo Motor Free Ship
TEXAS INSTRUMENTS PLC 545-1102 USPP 5451102
ASEA BROWN BOVERI E-32235 USPP E32235
(AS01) MSD043A1X PANASONIC AC SERVO DRIVE USED WORKING
ASEA BROWN BOVERI 3BSE005831R1 NSPP 3BSE005831R1
Panasonic Servo Motor M***042P1A 400W Free Ship
TEXAS INSTRUMENTS PLC 505-4316 NSPP 5054316
Texas Instruments 2497284 PC BD PM550 CMU-7K
MODICON P2-984A-816 USPP P2984A816
BAILEY CONTROLS 6637827B1 NSPP 6637827B1
ASEA BROWN BOVERI DSQC-239 USPP DSQC239
GE FANUC IC646NMP000 NSFP IC646NMP000
Panasonic AC Servo Motor M***152A2D 200V 9.4A
WEINIG 1LA5131-2FB90-ZX51 USPP 1LA51312FB90ZX51
PANASONIC MSDA043A1A MINAS-A AC SERVO DRIVER 400W NIB NEW
Panasonic AC Servo Drive MQDB011AAD03 new 0190-19214
Texas Instruments PM550-400 Loop Access Module PM550400
ASEA BROWN BOVERI 3ASD573001A1 USPP 3ASD573001A1
Panasonic AC Servo Drive MCDCT3312B12
Lot of 2 Panasonic AC Servo Motor M***A041A1E
ASEA BROWN BOVERI E-32235 USPP E32235
TEXAS INSTRUMENTS PLC 510 NSFP 510
Texas Instruments 500-5020
GENERAL ELECTRIC CK08CE311J NSFP CK08CE311J
TEXAS INSTRUMENTS PLC 505-4016A NSFP 5054016A
HOFFMAN C-SD302410SS NSPP CSD302410SS
TEXAS INSTRUMENTS PLC 505-CP1434TF NSPP 505CP1434TF
SIEMENS 6ES5-923-3UA11 NSFP 6ES59233UA11
TEXAS INSTRUMENTS PLC 500-5055 USPP 5005055
Texas Instruments 7MT210
Panasonic AC Servo Driver MSD013A1XX07 FreeShip
TEXAS INSTRUMENTS PLC 305-LIC USPP 305LIC
TEXAS INSTRUMENTS PLC PM550-5040 USPP PM5505040
Perceptron 140-0138 Replacement Laser Module
ALLEN BRADLEY 512-CJB-6P-24R NSPP 512CJB6P24R
Texas Instruments 5TI-2000
OMRON F10-S15R USPP F10S15R
TEXAS INSTRUMENTS PLC 945075-0001-V USPP 9450750001V
TEXAS INSTRUMENTS PLC 2490871 USPP 2490871
TEXAS INSTRUMENTS 500-5061 OUTPUT MODULE 5005061