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Messages - support

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3121
Technical support / Re: Active Server Page Control
« on: January 26, 2004, 04:44:12 PM »
The VB example accesses the PLC directly via the serial port. It is not network based and hence cannot be converted into ASP page. Currently we only support Java based applet with a Java API library.

3122
Technical support / Re: thermal line printer
« on: February 06, 2004, 11:06:11 AM »
Did you try sending some data to the printer from HyperTerminal "Direct to Com x" configuration? That give you a better idea of how to get the printer to print out what you want.

If there is a DIP switch for XON/XOFF, then disable the XON/XOFF to simply communication.

The cable from PLC to the printer will be opposite that of the cable pin out from PC to the printer. Assuming your description of the pin out from PC to printer is accurate, then you should connect the following:

  PLC              Printer
    2                   3
    3                   2
    5                   7
    
Also short pin 6 and 20 together on the printer side. No other connection is necessary on the T100MD+ PLC side.

(Note that T100MX+ is different because it requires pin 4 to be connected to a +10V power to operate properly, usually this is obtained from the DSR pin of the host PC).


3123
Technical support / Re: thermal line printer
« on: February 04, 2004, 08:42:04 AM »
Does your printer uses hardware handshaking as well? If so, then short the RTS to CTS (7 to 8 on DB9), DSR to DTR (pin 4 to 6 on DB9) on the PRINTER side if the printer uses DB9.

You mentioned that your printer uses DB25, then for DB9 to DB15 wiring, it depends on whether your printer is configured as DCE or DTE. So it may be 2-2, 3, 5-7 or 2-3, 3-2, 5-7.  

If your printer uses strictly XON/XOFF protocol for flow control, then please check with the printer's supplier on the protocol spec. My guess is that you may have to send an XON character to the Printer before sending the data. Find out what ASCII character they use as XON and you can use the CHR$(n) to send the character to the printer prior to the data.

3124
Technical support / Re: Backlight repair on MD-HMI?
« on: February 09, 2004, 08:59:18 AM »

If for an reason the 24V and 0V are applied directly to the LED backlight the backlight array of LED will be damaged.

Perhaps buying a new HMI to replace the existing one and send the damaged one back to us for repair may be the quickest solution.

To replace the LCD, you need to remove the LCD module from the HMI by desoldering the 16 header pin and replace it with a new LCD.

Alternatively, if you disassemble the LCD module, you can retrieve the light box unit in the LCD which is an independent unit that can be taken out of the LCD module assembly and replace with a new one. However, you will need to align the contact between the glass and the PCB properly otherwise there will be display problem (such as missing segment).

3125
Technical support / Re: Custom Function as ladder contact?
« on: January 30, 2004, 08:27:25 AM »
Cusf is not a relay or output so it does not "close a contact" if that's what you mean. You can parallel a coil with a CusF if what you want to do is to turn ON a contact of that coil and execute the CusF at the same time from the contact closure.

Please open up some programs from the "samples" folder of your TRiLOGI software and study the way the programs are written and you will have  a better understanding of how the program works. You can also visit:

http://www.tri-plc.com/examples.htm

for some sample program codes.

                  

3126
Technical support / Re: Custom Function as ladder contact?
« on: January 29, 2004, 08:45:10 PM »
The state of the contact on the ladder program determines if the custom function will be executed.

Within the custom function, it is possible to set the logic state of any I/O by using the SETIO, CLRIO, TOGGLEIO or the SETBIT or CLRBIT function. However, most of the time you probably want to leave the change of I/O state to ladder logic instead of within a CF. Ladder logic is must faster and more code efficient when handling single bit I/Os.

3127
Technical support / Re: How can you input this ladder structure?
« on: February 12, 2004, 10:53:41 AM »
TRiLOGI editor can't create parallel branches as shown in your drawing. That's why the [ILock] and [ILend] special functions are used to implement what's equivlalent to the parallel branches.

The manual actual describes what [ILock] and [ILend] is trying to achieve. It didn't mean that TRiLOGI can actually create the parallel branches.

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