Trying to connect to a SLC 5/03 via the serial port. I don't have a serial port so I got a USB adaptor (USA-19HS) and using a null modem cable but I still can't connect with my SLC. Using DF1 driver. RSLinx will not auto config but I heard it wouldn't with an adaptor. Any help would be appreciated.
Slc 500
- Thread starter Logitech
- Start date
Ron Beaufort
Lifetime Supporting Member
if you've got the Keyspan adapter, it usually DOES work with the autoconfigure ...
one thing that the autoconfigure will NOT do, is try different serial ports ... in other words, you might have to manually change from COM1 to COM2, etc. to find where your computor has "landed" the USB adaptor ...
if that doesn't get it working, consider that the SLC's Channel 0 might have been reconfigured for DH-485 or ASCII or something other than just plain-vanilla DF1 ...
do you have an existing (and current) copy of the SLC's .RSS program? ... if so, check under "Channel Configuration" and see how the serial port has been configured ...
one thing that the autoconfigure will NOT do, is try different serial ports ... in other words, you might have to manually change from COM1 to COM2, etc. to find where your computor has "landed" the USB adaptor ...
if that doesn't get it working, consider that the SLC's Channel 0 might have been reconfigured for DH-485 or ASCII or something other than just plain-vanilla DF1 ...
do you have an existing (and current) copy of the SLC's .RSS program? ... if so, check under "Channel Configuration" and see how the serial port has been configured ...
OkiePC
Lifetime Supporting Member
Do you know what the settings are for the SLC serial port? Perhaps it was last set up for user (ascii)? just a wag...
Unknown
No I don't have a current copy of the program and do not know how the serial port was configured. Any alternatives, will removing the battery reset it to 232 again. I don't need the program that is in it right now as we are putting it on another application.
No I don't have a current copy of the program and do not know how the serial port was configured. Any alternatives, will removing the battery reset it to 232 again. I don't need the program that is in it right now as we are putting it on another application.
Controls_Engineer79
Member
isnt there Dip switch settings on the processer that will default it back to the factory default for comm port settings? i thought there was - but i could be thinking another plc..... havent had lunch yet cant think on an empty belly
OkiePC
Lifetime Supporting Member
Yes, you can reset the SLC to factory default by removing the battery and shorting GND to VBB for a few seconds to drain the capacitor. Make sure you remove the EEPROM module if one exists. That should put it back to DF1 protocol.
Once done, the DF1 baud rate should be 1200 unless you have FRN11 and then it will be 19.2k.
Paul
Once done, the DF1 baud rate should be 1200 unless you have FRN11 and then it will be 19.2k.
Paul
Similar Topics
I have a program that I've used 100 times.
SQO settings: File N7:0, Mask 0FFFFh, Dest B3:1, Control R6:0, Length 8, Pos 2.
Length & Position...
Everyone,
i am in the process of purchasing the Slc 500 version of software to support what we have and i have a question. Several of our...
In a slc 500 plc I am trying to move data with out using a lot of moves. I want to move data from n7:1 to n7:2 and data that was in n7:2 to n7:3...
Customer has a circa 2004 SLC-500 PLC. Fieldbus is a 1747-SDN DeviceNet scanner. Customer has SLC-500 file (.rss) with no comments. Has no *.dnt...
After I tried wiring, I used computer program communication to read the PLC N value, but received a NAK signal. And the DL3500 CHA light keeps...