kraykov

An example of a counter. It can be used for your task.

Sorry Ron_s! You are right about the damage from the ready solutions.  

Hi Franz, There is no problem using Terminal 4 to set the output frequency. Then configure the AU of another  terminal RL.  When we want to work with the current input, we supply + 24V(terminal PC) to the terminal that we have configured as an AU (RL in my example ). It is necessary to use STF and STR terminals for START forward / START reverse.

Hi Franz, Check Pr 63 how it is set up. It is for setting the STR terminal.  If set to 0, 1, 2 is used for low, medium or high speed. Reverse is set ---. Good luck!    

The easiest solution is to use SCADA that supports the MC protocol. For example, CITECT SCADA using the serial port that is used for programming and a converter RS422 to RS 232.

Hello Marek25, Your HMI - VT60  must have a MPS and a 25 pin Canon socket.  The cable must have a twisted pair of 2x0.5 shielded. The scheme for your case is on page 925. Resistors are 0.25 watts and can be soldered directly to the socket.  Realize also a bridge of terminals 4 and 5 as well as terminals 15 and 18. It is desirable that the cable is less than 50 meters in length. Check the specified PLC and HMI addresses. For SIMATIC S7 200 Address of CPU = 1 - 126. The schematic on page 884 is for an inverter SIMOVERT.  It has a RS232 serial port and the connection for this is different from PLC SIEMENS S7 200. Good luck!  

Hello Zahi Younis, You need to give some more information about this case. Where do you get the information from the Modbus protocol? Otherwise, Mitsubishi have their own communication protocol.    

Hello Shoaib,  Whether you could not use the  built-in inverter PID and thus reduce the number of PID regulators used in the PLC? Best regards, Kraykov

Hello, look a picture.

OK Matcha, try these settings.

Hello, try the settings for Serial port  PLC show in the picture. The best regards.

Hello @tiria . You may see the following instructions: SDP - Measuring the density of 16 bit binary pulses or DSPD - Measuring the density of 32 bit binary pulses Best regards.

Look at this it could do you good:

To localize the problem you must: - provide information about the inverter settings you have made; - provide information about the application program; - cable length between inverter and PLC.

I suggest you try this example:

You may also look at this: http://forums.mrplc.com/index.php?/topic/29646-connect-got-with-usb/

This controller offers many opportunities for this. A RS485 port can be added - FX3U-485-BD, a USB port can be added from where to program or monitor PLC-FX3U-USB-BD. It also comes with Ethernet FX3U-ENET-ADP. MITSUBISHI HMIs support data transparency and could be programmed via the current RS485 port.

You need to give information about the controller model and the analog modules only on the ladder diagram, it's hard to guess it.

Hello retry92, This is an simple example of reading the current counter value. Phase A and B of the encoder are connected to the first two inputs. The best regards, K. Raykov Test_read value encoder.gx3

Hello, It is necessary to set the type of signals to be read. This is suggested in the picture. In our case, the fast counter will be two-phase with the A and B signals. Greetings, K. Raykov

What do you want to do with this communication between servo drive MR J2S 350CP and plc S7 200? The serial port RS422 is used to configure the servo drive.  Also to monitor the servo drive status.

A line statement in GX-Works2 is 32 or 64 characters. It is not possible to have more than 64 characters.

It is possible that the program loaded in HMI has been created for a machine with more functionality and just a part of it is not used on your machine. It is also possible that somebody has erased part of the program loaded in the PLC.

Yes it is.

These HMIs are programmed with an E-designer. I'm not sure what version your terminal supports. You can try with v.7.30 or 7.52. This software can also be updated with firmware HMI.