The people who use to work with Delta analog I-O modules, use to have the same doubt.
Why the engineers put a RS485 port on analog I-O’s if you use internal bus to communicate with them?
The reason is very simple, our analog I-O’s can work trough the internal bus, but can work too trough RS485 communication too.
So, with that feature, is possible to create a remote analog I/O’s without any other device.
Just as a reminder, if you need to add digital I/O’s to your, then you should have to add the RTU-RS485 module to your distributed network.
The process to configurate the network is not difficult, but you have to go step by step.
1. The first step to configurate the RS485 protocol into the analog module, is runing the following example, who is ready to communicate with the PLC at ASCII 9600 7,E,1.
DVP04TC RS485 config communication.dvp
If you are interested to know how I did it, go to the Analog Control post
2. Once the protocol is configured, you can double check with the Extension Module Wizard and some IFD6500 (USB to RS485 converter) connected to our computer.
3. Finally, to work with them trough RS485, you just have to communicate with the analog module as an Inverter or temperature controller, or any other RS485 based device.
MODWR “Station Address” “CR number” “Number of data to be write”
MODRD “Station Address” “CR number” “Number of data to be read”
And SET/RST teh M1122 to trigger the command
Check the following example for better comprehension
DVP04TC RS485 Read-Write.dvp
October 25, 2019 at 2:55 pm
plz, upload a new file
dvp04tc rs485 config communication.dvp
this file is corrupt
in Delta wplsoft error
PROJECT FILE CORRUPTION
October 18, 2019 at 8:40 am
I have a Sensor with 0-5V output option and sensor range is 0-2500 μmol m−2 s−1. How can i connect this sensor DVP04ADS plc, and what will the ladder logic for it????
kindly help me out
May 28, 2019 at 10:54 am
i want to do analog program . please give a programming steps and demo input of a programme. please help..
August 8, 2016 at 11:07 pm
I have DVP6XA_s.I want to write program with input 4-20mA and output 0-10v(out put conecte to VFD-B).
With these conditions, the output voltage decreases with increasing input current.
plz help me
August 30, 2015 at 7:14 pm
Please give me some application project on analog I/P signal . I am using DVP ES 2& DVPSS series DVP 4AD
March 15, 2015 at 1:02 pm
Please give me some application project on analog I/P signal . I am using DVP EX2 series PLC
February 11, 2015 at 11:36 am
Your FTP link does not work. “530 User den-eindhoven cannot log in” I am using both Firefox as well as IE11.
March 9, 2013 at 11:31 pm
Estoy tratando de leer temperatura presente del dvp04tc. y no he podido ver podran mandarme un ejemplo. gracias
July 5, 2012 at 5:11 pm
can i have a simple on/off temperature control program for my delta PLC.?