Ask Siemens touch screen Unplugging the touch screen PLC from the system will alarm me?

The system backup of the touch screen is very simple, there is no need to pull out the dp line, the two ways, if you configure a button when the touch screen is configured, the function of the button is to exit the touch screen operation, you can exit directly, you can do backup, and there is the touch screen in the field The power terminal of the touch screen is unplugged and reinserted into the start of the backup. Unplugging the DP line PLC will report an error, as long as you add the corresponding empty OB block to the program, there will be no downtime. **Description:

Two events need to be configured. One is that when the button is held down, the variable = 1;One is when the button is released, the variable = 0;

1. Create alarm variables in winccflexible, and then specify the bit (winccflexible2007 or later versions can specify the bit in the digital alarm.)

2. In the field of industrial control, the form of numerical value exists in two ways: analog and digital. Analog quantities are a progressively excessive process, such as the 0 20mA signal in electricity, and analog quantities can only be continuous. Numeric quantities are used as single or combined numbers to represent states or values.

Digital quantities are further divided into switching quantities, continuous quantities and discrete quantities, and switching quantities are quantities that indicate that there are only two states, such as on or off, there and no, right or wrong; The continuity of digital continuity is different from that of analog quantity, it divides a continuous quantity into numerical representations, such as splitting the 0 20mA signal with 1mA resolution, it is represented by 0,1,2,3 20, if the binary is used to represent 3mA, the value is 0011, and 4mA is 0100, that is, the digital continuous quantity is increasing or decreasing with a clearly defined resolution, and the analog quantity also has a resolution, but this resolution is not clear; The discrete quantity can be a switch, or it can be a set of switching quantities, such as a switch, when it is recorded as 1, when it is off, it is recorded as 0, this state value is the switching quantity, and it is also a discrete quantity, if there are four switches a d, the state is on, off, on, on, and the state is recorded as 1 4 bits, then it is 1011, which is a set of switching quantities, and it is also a discrete quantity.

My practice is to make a text list in the touch screen, and then specify a variable md123, dword and then assign the corresponding variable in PLC, for example, for alarm 1, and the corresponding alarm of the touch screen is 1, then use the trigger to assign MD123 to 2, remember that the text list is a bit, so you must give the corresponding position 1, this I have done ok practice, I personally think that direct trigger should also be possible, you can try it, or directly set the variable md10 in the human-machine interface, That should do the trick, I haven't tried it, you can try it

VW130 is not the same, a VW130 is equal to you to see if the address below is good to choose the number of 0-15, the corresponding connection, such as: The corresponding is VW130 after the selection of 8Or look at the address read in the touch screen is vb, which is equal to.

In the process of user program execution, only the state and data of the input point in the IO image area will not change, while the state and data of other output points and software devices in the IO image area or the system RAM storage area may change, and the ladder diagram ranked above, the program execution result will play a role in the ladder diagram of all coils or data used in the below; Conversely, the ladder below, the state or data of the refreshed logic coils can only be used for the programs above it until the next scan cycle.

The internal alarm address of the touch screen is also configurable, which is the lowest bit of VW130.

Hello driver driver when vw130=1 alarm is equal to 2 when the alarm, I don't know if Delta is like this, please forgive me.

It depends on how the data of the system is configured to the IO point, and it must look at the PLC

PLC basically does not need to be set, you can select the connection object when programming the touch screen, of course, if you change the system parameters of the PLC, then the communication parameters of the touch screen must be consistent with the communication parameters of the PLC---.

200plc, set the baud rate of the corresponding port of "System Block" - Communication Port. The touch screen is set to "project" - communication "- connection" in the interface is "if1b", the configuration text is "ppi", the baud rate is the same as that set in 200plc, and you can see a line shown in the following figure in the programming software of the touch screen, which means that the touch screen is set.

Open WinCC Flexible and find the Communication link. You see the communication driver, select SIMATICS7-200

Select if1b for interface

Baud rate 9600 address 1 The only master on the bus Hit the right number Configure the text ppi The rest is left alone.

The question is not detailed enough! Our company is HMI to eliminate the display, PLC is to eliminate the alarm, generally the PLC to eliminate the alarm, the processing is completed, the alarm display on the HMI to be eliminated on the HMI.

Siemens PLC has a special programming software, and if you want a touch screen, you have to use Siemens WinCC programming software to program it.

To sum up, Siemens, whether it is a PLC or a touch screen, is more cumbersome when it is written. Therefore, it is generally programmed with Configurator.

Wincc programming software is mainly used for the programming of touch screen host computer.

Write the PLC program, and then transfer the corresponding points to the touch screen.

Siemens S7-200, programming software Step 7 Microwin, currently up to SP9, is open and free.

Siemens S7-300, S7-400, programming software STEP7, currently the highest is, need to be authorized.

Siemens S7-1200, programming software STEP7 BASIC, the highest version at present, requires authorization.

Siemens touch screen, programming software WinCC Flexible, currently up to 2008 SP4, requires licensing.

Siemens host computer (industrial computer), programming software wincc, currently the highest, needs to be authorized.

The above are some of the things I know, as for how to write the specific program, you can only slowly read the manuals and manuals of each software, and then write according to your needs.

The road is long, I will go up and down and seek... Learn slowly...

The Siemens touch screen can be received directly, because in the process of receiving it, you need to first create or adjust the program.

The state that can be changed directly (but do not write data to the program or it will conflict), but the state that cannot be changed.