How to Configure PLC as a Modbus Slave and how to read write the data from PLC through Modbus

[@pangke7]

thanks for this video, very informative,,, how i'm going to write timer sequence in modbus communication if i'm going to use FX3U series PLC,,,what would be the command line?

[@ruslan.zhumabai]

Good explanation, thanks. Where did you find a manual about setting modbus rtu? Does it work on a board fx2n?

[@rumpi81]

hi, a question(i started to learn now this, so sorry if the question is stupid) if i have some modbus rtu power meter, and relay board and one wire(ds18b20) module and one simple modbus temperature module and i wanted to use these with the fx3u plc via modbus, than the plc should be configured as a master? some modules like temperature... can only provide data, but relay board has in and outputs also so i suppose in this case can only read and write, and in cases of power meter/temperature... can only read data, right? can i find somewhere such example which can explain suc config , and how is working, like fx3u+relay board+temperature sensor via modbus---read and write data sample plc program? thx!

[@mazsudharaka2345]

Could you instruct on how to us xinje as master Plc in modbus communication

[@chickenz4604]

VERY NICE SIR, what if i have 2 different sensor that support rs485. how to program it in software? cuz D8121 need to be set as slave id 1 or slave id 2

[@adbautomation3631]

kzbin.info/www/bejne/gYSbaauBYruinqMsi=Rso6oGEPlAkJBGX7 See video in this link Set plc as master and sensors as slave. Master don't have id

[@nikfirdaus3286]

Sir can this program work with FX1n ?

[@darktricks5970]

Sir make video on two low cast plcs modbus reding coils and data registers

[@amarildotopan3142]

professor muito obrigado sua explicação foi excelente pra mim

[@hahaitisme.7052]

What is the modbus address for d 200 to d 220?

[@a96futurecreator96]

Why does this work? When the parity is "none", you should change the stop bit from 1 to 2, thats what I read from a documentation.

[@sanjeevchoudhary6148]

what is modbus address and data type of D0.....ana special data registerD8000.......

[@adbautomation3631]

D0 modbus address 1

[@gabrielpereira9799]

Hey man, can I use the db9 to communicate to? Like both channels, one as master and one as slave?

[@adbautomation3631]

not possible. It is RS232 port. only for Program upload and download and hmi communication.Use Rs485 port for Master Slave configuration

[@oskardrzyzga452]

Good morning. When you write the coil status, program on PC are really using 0x05 funcion? Becasue I see 0x01 function and you can write the coil status, but function 0x01 is only for read coil status? Coudl you explain it to me please?

[@adbautomation3631]

0x01 is used for read coil status. In modscan only this option available to write value. because it don't have option 0x05 ,0x06,0x16 and all.. so we are writing value like this" double click on bit or register which are read from 0x01 0x03 function and enter value and update"

[@roycun5013]

Excellent tutorial..

[@cdsplus1]

Hello, Can I use my PLC (chinese Fx2N-20MT) to make a simple scada system? How? Thanks

[@darktricks5970]

Sir i want your help in low cost plc le3u modbus rtu can you help If slave not response are slave wire break then witch relay use for error ?

[@adbautomation3631]

Check Timeout flag M8129.

[@darktricks5970]

@@adbautomation3631 sir how ues m8129 I try m8129 but it always on

[@darktricks5970]

@@adbautomation3631 sir how ues m8129 I try m8129 but it always on

[@ErnestoVillarreal]

Do you have the address to read the Y coils? the 0x3300 is not working on my PLCs

[@adbautomation3631]

Y coils don't have address. Only internal coil M coils have address.so assign M coils to Y coils and read and write the status of Y coils.

[@ErnestoVillarreal]

@@adbautomation3631 Sadly, that's the thing I'm doing. Thanks

[@mdsukhonsarker7747]

Which cable are you using to program it?

[@adbautomation3631]

usb to serial cable is enough

[@phamuc8960]

PLEASE ME PLEASE WAY TO Connect the RS485

[@adbautomation3631]

Connect A(RS485 +ve) to A and B(RS485 -ve) to B

[@apisitsangkeaw8107]

Thank you so much.🥰