How to use the CX-Programmer software and CJ1W / CS1W-ETN21 module communication?

06/20/201611/28/2018 ~ arcozhang ~ Leave a comment

Suppose the computer network card IP address: 192.168.59.54.① Setting CJ1W / CS1W-ETN21 module NODE number: NODE = 0 × 161 +3 × 160 = 3② Set module parameters:CX-Programmer software through the serial port and the PLC online, PLC switch to programming mode, double-click the IO tables and unit settings, select the option to create a drop-down … Continue reading How to use the CX-Programmer software and CJ1W / CS1W-ETN21 module communication?

Omron PLC technical problems and solutions

06/20/2016 ~ arcozhang ~ Leave a comment

A, normally-off mark What does this mean? Under what circumstances can use normally-off signs, normally-off flag at what time it is turned on?(Normally open) Under what circumstances will the conductor, generally not allowed to handle the case 1.P_OFF bit set to ONFor example, CNT command, if a customer is not allowed in any case reset, … Continue reading Omron PLC technical problems and solutions

What Precautions when using multiple CMP instruction?

06/20/201611/28/2018 ~ arcozhang ~ Leave a comment

Simultaneous use of multiple CMP, each CMP instruction behind the state flag is refreshed immediately, so will not affect each other, it can be connected to the output of the coil to hold CMP flag.

SCL instruction – Omron PLC ladder

06/20/201611/28/2018 ~ arcozhang ~ Leave a comment

Condition: The transmitter output signal is 0-10V, corresponding to a pressure of 0-400MPa; CP1H analog input range is set to 0-10V, resolution selection 6000.Objective: Use the SCL instruction converts the analog data obtained 0-6000 (BIN) to the corresponding scaling 0-400MPa (BCD) display output.Results: after the program execution can be achieved 0-6000 (BIN) to convert 0-400 (BCD) … Continue reading SCL instruction – Omron PLC ladder

How do wire OMRON proximity switch and the PLc?

06/19/201611/28/2018 ~ arcozhang ~ Leave a comment

DC two-wire type: Brown line PLC input point com PLC received positive power supply, power negative to the blue line.NPN type: Brown plugged blue Power, black line received a PLC input points, com is connected to a power supply of the PLC. Type NPN is leaking, when an object is detected low level signal output.PNP … Continue reading How do wire OMRON proximity switch and the PLc?

Omron PLC programming software to use the function block

06/19/2016 ~ arcozhang ~ Leave a comment

Omron PLC programming software also increases the function block function block preparation software features to IEC61131-3A function block call a ladder exampleThe main purpose is to promote good function block structured programming, function calls; allow complex programs to create less code, more manageable process.A block from the block header and block body compositionPhysique - to … Continue reading Omron PLC programming software to use the function block

Frequency measurement for Omron PLC high-speed counter

06/19/2016 ~ arcozhang ~ Leave a comment

By PRV instruction, you can read the frequency of the input pulse, high-speed counter frequency measurement, frequency is measured in Hz, hexadecimal 8-bit output, and can be used only in high-speed counter 0. In addition, also during high-speed counter 0 comparison operation at the same time, measurement frequency. Even in the frequency measurement, nor will … Continue reading Frequency measurement for Omron PLC high-speed counter

Omron PLC equipment disassembly sequence and method

06/19/2016 ~ arcozhang ~ Leave a comment

(1) downtime must be two or more people care operations; (2) The front panel of the CPU mode selector switch from "Run" to "stop" position; (3) off the main power supply of the PLC, and then close the other to die Sakamoto power supply; (4) The power supply shelf connected to the power line wire number and remember … Continue reading Omron PLC equipment disassembly sequence and method

Initialization module (OB100) – Siemens S7-300PLC organization block OB

06/19/201611/28/2018 ~ arcozhang ~ Leave a comment

When the CPU state into the stop state operating mode, the operating system calls OB100. After the end of OB100 operation, operating system calls OB1. Use OB100 characteristics prior to execution of OB1, you can prepare the initial variables or parameters for the user to run the main program.

Hardware interrupt (OB40) – Siemens S7-300PLC organization block OB

06/19/2016 ~ arcozhang ~ Leave a comment

Response process from different modules (eg I / O modules, CP or FM module module) issued a warning or a hardware interrupt request signal.OB 40 runs, the operating system does not receive the other hardware interrupt requests.You can modify the parameters for analog or digital module with a programming tool which is set by the … Continue reading Hardware interrupt (OB40) – Siemens S7-300PLC organization block OB