Matsuo Posted March 8, 2018 Report Posted March 8, 2018 Hello I need to sent data between PLC CP1L-M30 and Hyberterminal with serial port (RS232C port 1) ,but there isn't data show up . something is wrong? Could you advise me? my ladder as below
Michael Walsh Posted March 8, 2018 Report Posted March 8, 2018 The cable is not a regular serial cable. It requires a special pinout. Did you purchase or make the correct cable? Can you show the data that is in D11? You are sending 3 bytes, I can tell that D10 has a value of "H:" in it, but cannot see the third byte. I assume that hyperterminal has the same RS232 settings as the serial port on the PLC? Lastly, what is the dip switch set to for serial port 1 (pin 4 on the dip switch, it should be off)?
Matsuo Posted March 8, 2018 Author Report Posted March 8, 2018 Thanks Michael Walsh for reply me. 1. Serial cable => I use Notebook , i use RS232 to USB converter (I think connect pin is incorrect,it cannot modify) 2.Number of byte to sent => i mistake, it should be 2 byte. 3.Did switch pin 4 => it set OFF Right now, I think use RS485 serial board (CP1W-CIF11) and RS485 to USB converter, is it work? or there are another way.
Michael Walsh Posted March 8, 2018 Report Posted March 8, 2018 29 minutes ago, Matsuo said: Thanks Michael Walsh for reply me. 1. Serial cable => I use Notebook , i use RS232 to USB converter (I think connect pin is incorrect,it cannot modify) 2.Number of byte to sent => i mistake, it should be 2 byte. 3.Did switch pin 4 => it set OFF Right now, I think use RS485 serial board (CP1W-CIF11) and RS485 to USB converter, is it work? or there are another way. 1. Is there a cable between the USB to RS232 converter? This is the cable that is not standard. Are you communicating to the RS485 module (CIF11) or to an RS232 module? Maybe a simple drawing to show what you are doing would be helpful.
Matsuo Posted March 8, 2018 Author Report Posted March 8, 2018 (edited) 13 minutes ago, Michael Walsh said: 1. Is there a cable between the USB to RS232 converter? This is the cable that is not standard. Are you communicating to the RS485 module (CIF11) or to an RS232 module? Maybe a simple drawing to show what you are doing would be helpful. 1.There isn't a cable between the USB to RS232 converter , it just direct connection. 2. In reality , I need to communication between PLC and Counter board(it use RS485 , production board) PLC <----------------> RS485<------------>Counter board but Right now, I have RS232 serial board only for testing, i have no RS485. Edited March 8, 2018 by Matsuo
Michael Walsh Posted March 8, 2018 Report Posted March 8, 2018 6 minutes ago, Matsuo said: 1.There isn't a cable between the USB to RS232 converter , it just direct connection. 2. In reality , I need to communication between PLC and Counter board(it use RS485 , production board) PLC <----------------> RS485<------------>Counter board but Right now, I have RS232 serial board only for testing, i have no RS485. 1. Unless you purchased this from Omron (or if it is specifically designed to work with an Omron PLC), it will not work. I am not aware of an Omron USB / serial cable (but that does not mean that it does not exist). This is what the CW1W-CIF01 looks pinout looks like: and therefore needs this cable from a PC port to the serial port:
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now