Internet PLC Forum

Hello, I have a F2424 PLC, I would like to connect using the ethernet connection.  I have downloaded the connection specs using the serial connection as per the manual.  After going through the manual, I am a bit puzzled.  I found the following on 2.7 Web Service: Accessing PLC's data from MS Excel

"One example, which you can try immediately, is to use the Microsoft Excel 2000 (or later version)
spreadsheet program. First, open a blank spreadsheet, then click on the ?Data? menu and select ?Get
External Data? -> New Web Query, as shown below: "

Does this mean that you do not need to use your Tri-Excel program to pull data off the plc using the ethernet connection.  If that is the case that will help greatly.

When I connect to the plc using the ethernet, I am unable to get a response.  When I check my network connections the PLC is there but there is limited or no connectivity, I have tried turning off my computers firewall and changing security parameters to no avail.  

When I try to ping to "192.168.1.5" there is no response. When I try to connect through my browser using "192.168.1.5:9080/hostlink/IR00." Still no luck.
I have tried using IR01 with no response as well.  

I have also tried to manually set up the network connection using the parameters downloaded from the PLC using the serial connection to no avail.  Any helpful hints on what I may be missing.

Hello, I have an application running with a T100MD888 and a Maple Systems HMI connected via 2 wire RS485.  The HMI is set to the default communication protocol on the PLC.

The communication works well but every once in a while randomly the com light goes out on the HMI, after a second or two it comes back on.  This may happen once or twice or continuiously on and off.

This is somewhat problematic because in this application the plc sends commands to a Delta Systems motion controller that hydraulically positions an indexing setworks bar for a wood edger.  If the operators select a size on the HMI while the com light is out, the plc does not receive the command until the com light goes back on.  If the operator has already fed a piece of lumber into the edger saw and the bar moves, the saw could be damaged badly.

What I need is to solve this problem, what I have found is after system starup the com light usually stays lit for some time, this can be 30 min or 2 hours, it is random.  Once the com light starts to flicker, if I turn the system power off and then on, the problem goes away.

Should I try different communication speeds to get rid of this.  Or can suggest anything else.

Thanks

Will Steed

Hello, I am currently using a T100MD2424 with an I-7017 module using the RS485 network.  The PLC is the Master and the 7017 is the Slave.  

I want to add a Maple Systems Touchscreen HMI, which I believe will act only as a Modbus Master.  Can I still have the PLC interrogate the 7017 for analog data and still respond to commands from the Touchscreen?  Or. do I have to reconfigure the system to have the Touchscreen interrogate the 7017 directly and then tell the plc to execute commands based on the data received from the 7017?

Primarily the HMI will be displaying readings of analog data recieved from the machine process, although I will be adjusting alarm setpoints on the display.

Hi, I am wondering if it is possible to construct a longer communications cable than the one provided when you purchase the Trilogic software package.

I have one of your plc's mounted in a panel in a very dirty compost processing plant, any programming changes I have to make are usually when the machine is running, there is a lot of dirt and debris falling into my laptop.  
I would like to make up a cable around 25' long so that I can do programming changes from the safety of my service vehicle.

Thanks

WillPower