adccommunitymod (AutomationDirect) asked a question.
Communication
Created Date: April 19,2008
Created By: eashaw
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I am trying to connect a DL05 to a TCP/IP network via a Lantronix XPress DR interface via port 2 of the DL05. I believe both units are DTE devices and I need assistance in determining how to connect them via rs232 port.
Created Date: April 19,2008
Created by: Tubecut
A simple and quick test might be to swap RCV and TXD pins at one end. Not sure if the Lantronics uses any handshaking.
I know that on the telephone RJ-12 style connector that pins 3 & 4 are the transmit and receive pins. Might have to look it up in the DL05 manual.
Created Date: April 20,2008
Created by: eashaw
Tried swapping the RX and TX already but it doesn't work either. The lantronix was connected to a modicon 110CPU31101 PLC via three wires and had rs232 connection. Based on that I believe no handshaking is involved.
Created Date: April 21,2008
Created by: MacS
Does the 05 Port 2 RXD LED flash?
What comunication protocol does the Lantronix device use on the RS232 side?
Assuming that protocol is Modbus RTU, Is port 2 of the 05 configured for Modbus protocol (should be the only protocol selected)?
What slave address is port 2 of the 05 configured for? Is this the address the Lantronix device is targeting?
Does the baud rate and framing in the 05 port 2 configuration match the baud rate and framing that the Lantronix device uses on the RS232 side?
Created Date: April 19,2008
Created by: eashaw
I am trying to connect a DL05 to a TCP/IP network via a Lantronix XPress DR interface via port 2 of the DL05. I believe both units are DTE devices and I need assistance in determining how to connect them via rs232 port.