Jump to content
Sign in to follow this  
Troutman16

M91 RS-232 RJ11 to RJ45 Serial Communication

Recommended Posts

I have a M91 Unitronics PLC (M91-T4-R6-ZK1 serial HB21006HN4002G) which has a RJ-11 port for RS-232 Modbus communication.

I have a GE PLC which has a RJ-45 port for RS-232 communication with following pin readout:

1.RTS
2.TxD
3.RxD
4.
5.Com
6.CTS
7.
8.Com

Is a adapter kit required?

Share this post


Link to post
Share on other sites

You're going to have to make a cable, but it should work.

On the Unitronics side-

3 - TX

4 - RX

5 - COM (0V)

Search the Help for "RS232" and choose the RS232 topic for a picture.

Cross TX and RX in your cable:

GE        M91

2            4

3            2

5           5

 

Joe T.

 

Share this post


Link to post
Share on other sites

Thanks for the reply. Sounds like I can use a RJ11 (phone) cable and add a RJ-45 connector or vice versa.

Did you mean (see underline)

GE        M91

2            4

3            3

5           5

 

I was looking for the picture you mentioned and could not find the RS232 topic.

Share this post


Link to post
Share on other sites

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 account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

×