Sign in to follow this  
Followers 0
asteroidehk

AB 5/04 and Lantronix UDS1100

4 posts in this topic

Hello Friends

I have a Lantronix UDS1100 connected to the serial port of the 5/04 CPU. The DH+ port is connectd to a PanelView. The UDS1100 Ethernet port is connected to a switch. 

Everything works ok but I have a issue, a PC is always connected to the UDS1100 to get some tags through OPC, so I cant connect my programming PC to access the PLC. I need to disconnect the UDS1100 from the OPC and connect direct to my programming PC.

Is there a way to have connected the OPC an programming PC at he same time?

 

Thanks in advance.

 

 

Edited by asteroidehk

Share this post


Link to post
Share on other sites

Is this an ordinary UDS-1100 or a UDS-1100-IAP with Industrial Automation Protocols ?

General-purpose Serial/Ethernet converters work by allowing a device to use them as a "virtual serial port".    Your OPC server is probably running a DF1 Full Duplex serial driver on that virtual serial port, which is connecting to the serial port of the UDS-1100 just like it was a serial cable.   That's why you have to virtually "unplug" it.

The UDS-1100-IAP converts EtherNet/IP protocol to DF1 protocol, and allows multiple devices to use the serial port at the same time.    The OPC server would have to use an Ethernet driver, not a DF1 driver on a remote serial port.

This is also how the old 1761-NET-ENI module worked, and similar devices from Digi and RTA and LanTronix (the -IAP stuff) work the same way.

Share this post


Link to post
Share on other sites

Hello

The device was an ordinary UDS1100 and was working like you said, a virtual serial port and the OPC running a DF1 Full Dúplex serial driver. Also, disconnecting the OPC I could see the PLC in RSLinx with a DF1 Driver.

Until now, I have gotten the UDS1100IAP, but it is working exactly than the UDS1100 (no IAP) I have added an Ethernet driver in RSLinx but I can not see the CPU. The ping command is OK

Also I have connected the UDS1100IAP with virtual serial port to the OPC and it Works OK, but I connect my programming PC and I can not see the CPU.

What am I doing wrong?

Thanks a lot

 

 

 

 

 

 

 

 

 

Share this post


Link to post
Share on other sites

Hello

I have talk to Lantronix support, unfortunately new UDS1100IAP  do not support Multi-Master DF1.

So, I can not use this device.

Then, I need to find another option to connect a OPC PC and Programming PC at the same time to a SLC 5/04

Thanks a lot :)

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  
Followers 0