Equivalent to M intermediate relay
Use the mov instruction. For example: LD M8000
MOV C10 D2
Then use the text to monitor the value of D2.
This is applied to one screen multi-machine, one screen connects N PLCs in parallel through RS485, the station number of the first plc is 1, the station number of the second plc is 2 and so on (this station number needs to be set in plc ), so that you can set up, monitor, and control multiple PLC in one display.
The edit menu on the right has a vector text that can change the size of the text.
Unlike the general RS232, the universal RS232 is (2, 3, 5) pairs (3, 2, 5), and this cable is also connected to the 7 corners of the two ends.
The correspondence is (2, 3, 5, 7,) versus (3, 2, 5, 7).
Create an input text box in the text display, the time constant of the time relay in the PLC is assigned to a data register, and then connect the input text box and the data register.
C and T involve two types of data: current value and set value. Cn and Tn represent the current value and can only be read and cannot be modified by the periphery.
It is possible that the COM port is not selected, it can be set in the text editing software, or whether other programming software is open, which will occupy the COM port. Or the text editing software version is incorrect.
Xinjie programming port is RS232; Xinjie has a matching communication line.
There is a COM port on the computer that has a download line that can be connected directly;
The editing software can be downloaded from the Xinjie website.
The text editing software can not be used casually. It needs to be based on the hardware of the text display. For the specific hardware version, please see the back of the text display. After each model, there is a text wrapped in an ellipse, such as V8.0. V6.5 and so on, this is the hardware version. For the software, the editing software version used for hardware version v4.0 to V7.0 is V6.5Z version, and the hardware version V7.0 or higher is used for editing software of V8.0C.
Op320 version 6.5Z The following reasons are as follows:
1: Communication with the slave (PLC or instrument) is interrupted. It is always in the connected state. No other operations can be performed. The button will not work.
2: The configured PLC or register address of the slave is incorrect and cannot be read correctly. The result is the same as above!
1. Do you see if the range of devices used in your screen exceeds the scope of the PLC?
2. Check if the station number of the device of your text screen is No. 1, default No. 1
3. Check if the plc port and your computer can be connected. If you can check your line pair is not right.
4. All of the above are excluded and sent back for repair.
Text display MD204L OP320-A panel display screen HMI with RS232/RS485 for various PLC,support the modbus protocol 3X 4X
Text display MD204L OP320-A-S panel screen HMI with RS232/RS485 for various PLC,support the modbus protocol 3X 4X