Internet PLC Forum

Help!

I'm having trouble successfully sending Host Link Commands from the host PC to the Com3 port (RS485) of the 2424+ PLC. I can get an ASCII string from the PLC to the host with no problems but the PLC does not seem to be able to get or act upon data from the PC. Example:
 
From a standard VB2008 Serialport1.writeline routine, I'm sending @01Wb0100FF00* + VbCr to Com3 on the PLC (Blank Program) expecting to turn on Output #1. Does not work.
 
This method always works well for me with the T100MD888, but it doesn't seem to want to cooperate on the 2424+. What I'm wondering is if there is a special setting or programming configuration that I need to make in order to set the 2424+ up for receiving HLC's via Com3. I'm probably missing something simple but I would sure appreciate any help anyone could offer. Thanks so much.

Hope somebody can help me with a little serial communication problem I?m having. I wrote a simple front end to a touchscreen application in Visual Basic 2008 for interface with T100MD. Works great but now I?m trying to send the T100MD a control code in the form of simple Ascii string through the PC?s com port, per the following:


SerialPort1.Open()
SerialPort1.WriteLine(TextBox1.Text)

No difficulty getting the data out to the device ? as verified with my terminal program. My problem is that in order to correctly impement the instructions, the 888 requires a carriage return as part of the host-link command terminator. I cannot find any T100MD setting or Visual Basic reference that will add the CR after the string and I know I?m not the first to run into this. Any help that could be given would be very much appreciated.

Thanks

I'm operating a T100MD+888 with Internet Trilogi 6.1 and a ladder routine that sends an email (through a simple emEVENT function) on selected alarms. I have set up emails through the TLServer 3.0 window and have them activated properly. My problem is that I can't seem to get past my mail servers authentification process.

On run, unit returns a 530 Error - Authentication Failure message(indicating to me that the program is doing what it is supposed to - send email) on each attempt. Programmers Reference (Pg. 3-10) instructs user to check email once prior to sending email on an SMTP server requiring authentication (like mine) but this hasn't worked. I can send and receive emails with no problem on Windows Mail, so I know that I've got my mail settings right. I can find no other information on how to post additional security or authentication data.

Has anyone encountered this problem before? If so, I would very much appreciate any information on a possible solution.