Shailesh

In that load cell example the output of load cell is read by ML resistor , but I want to read in MI resistor . so I have selected the MI resistor in Hardware configuration then I don't see the output reading of load cell . so can u give me load cell example logic with output read in MI resistor .

Please can u give me load cell configuration and calibration in the form PLC logic . Beacause I don't understand that how to calibrate . The specification of Load cell are Exitation volteage - 10 VDC Nominal o/p- 3.0 mV/V I want to read the load cell value into Memory integer . So please give me Logic of load cell

Hi, I have problem about plc ,that I have connected one load cell to LC1 card and done hardware configuration on plc . so I didn't get value on plc but on multimeter directly I get the value on LC1 card . so I don't understand what to do ? Beacause my connection is completely OK.

Drive's slave address- 3 I am reading torque value and degree of rotation of Motor from ABB Drive . Communicaton port for ABB is RS 485 . Baud rate is 19200, and parity - none , stop bit -1 , data length -8 etc.

But our modbus slave programming is working on both modscan and our scada system .

Hello s.pratt, Somehow, my program is not working. I am getting error like 4 or 5. I have downloaded reference program from library. But it is not executing. Modbus slave is working perfectly. Is there any mistake in my program for Modbus Master?? Thanks, Shailesh

I have created modbus master logic . so can u check this logic and tell me is this write or wrong. I want to make PLC as a master and other PLC as slave . Modbus master.vlp

Does this mean that PLC cannot worked as a Modbus Slave and Modbus Master at a time ?

I have query about modbus master logic . I have created mod bus master logic . In that there is error status=55 is coming which I can't understand . please check attached file of mod bus master logic and please tell me is this write or wrong? With_modbus.zip

HI one more query , I don't know logic of modbus master . so can u give modbus master logic in unitronics . please........

Thanks s.pratt, Its working..

Thank u so much. This Logic is working.

It means , I want to make data logging , In that for 1 sec I want to move 20 Input value in different 20 MI resistor for single analog input within 50ms of interval . so suppose that analog input having address is MI 200 , So I want use another 20 MI address for data logging . In that I want move reading one by one in 20 - MI address created by me . It means that If MI 200 having value 1 so it will be move in 1st MI address out of 20, then after 50ms ,2nd value move into 2nd MI address..........and then up to 20 MI address . So for that I want to make array in PLC logic as same as CCW . Can u give me that type of Example by using counter and timer .

Thanks, but I didn't understand that how to pointer the address means I want to make indirect address . suppose my address is MI 200 then I want to use next 20 MI address for same interger for data logging . so please can u give me example? .... that how do such address ?

Thanks, But wht abt indirect addressing? Array function is useless until i use Indirect addressing in my logic. Thanks, Shailesh

Thanks.. It worked.. I will check Modbus address for corressponding registers. One more query... Can I make Array tag in this PLC. I want to do pointer logic .. (like I used to do in Allen bradley / siemens) For example : = MI[MI100].. where MI varaible array is from 0 to 20.. Thanks, Shailesh

Hello, I have query in unitronics software that Is it possible to make aaray in memory integer in PLC logic. Please reply as per as possible . if possible then please tell me how to make array in plc logic for memory integer

Hello s.pratt, Thanks. I am working on Visilogic software. But I have Load controller in my configuration. (LC03). I am not able to assign MI variable in its hardware congifuration. It shows only ML tags. What do I need to do to convert it? However hard it may be.. Just tell me.. I will do it. Thanks, Shailesh

Hello everyone, Which instruction do I need to use for converting long integer to Integer? (MLx to MIx) If there is nay example, plz post it here. Thanks, Shailesh

In Modscan, how can we read register with address 28679 or 28681. Addresses for Function coils are unique like 00001 / 10001/ 30001/40001 . Please tell me how to read them? Thanks, Shailesh

Hi, Yes. Iwant to read ML registers. I want to ML7 and ML9. But where can I find this 0x7000 (28762) address in Modscan? How to read it? Is there any setting that need to be done in programming? If u have any program which is reading/writing values on Modbsus (ML registers), plz send it here. Thanks, Shailesh

Hi everyone, I am new at using Unitronics PLC. Currently, I am working on V570 PLC. I am doing modbus communication on this PLC. V570 is Slave. I am checking modbus data on Modscan. Problem I am facing right now is, I am getting all MI (integers) values on Modscan including all Bits also. But I am facing problem in reading ML (long integers). How do I read MLxx values on Modscan? Please guide me. Thanks, Shailesh