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  1. I have an AB 5/03 processor connected to an Automation Direct HMI via the DH485 port. The serial port is being used to send ASCII messages to an LED display board. It's a giant hassle to connect to the plc with a pc and run the HMI at the same time due to having to reconfigure the serial port every time one wants to do so. What would be the best way to connect the HMI and a PC via the DH 485 port so that the plc program can be monitored and accessed at the same the HMI is operating and connected?
  2. Hi there, I am having issues connecting my computer to our SLC 5/02. We have a genuine Allen Bradley 1747-UIC USB to DH485 adaptor, I have read into it a fair bit and have tried many different things. I have removed pin 3 configurations from the ethernet (DH485) as advised previously.. I have tried many drivers to get it to work to no prevail. I cant even change the CPU over to a 5/03 as I cant guarantee the program we have a copy of is the exact one in the CPU, therefore I cant just change to a different unit and establish comms that way. Does anyone have a step by step guide to connecting the 1747-UIC to the PLC? Many youtube clips dont seem to work for me like they do in the videos.   Thanks a lot in advance if you can help!
  3. Hi Im hoping someone can help me out! i have a PLC SLC 5/03 and i want to connect the DB9 port with DH485 protocol to a computer 100 fts from there, is there any problem with the distance? and what kind of cable should i use , i already connected with my laptop with a USB-serial with a null modem cable RS232  (i did the cable by my self) but for the distance i cannot keep using that protocol so what is the recommendation?    
  4. Thank you for allowing me post here. I have a PLC SLC5/04, I usually connect to PC using DF1 (RS232 port). But recently, I had to use DH485 to connect to a new touchscreen.  Now, After setting RS232 port to DH485( In Channel Configuration/Channel 0-System). I couldn't connect to PC using RS232 port. In RS Linx, I tried both "DH485 UIC devices" driver  and "RS-232 DF1 devices" driver, but the PC couldn't recognize SLC5/04. Did I do something wrong?  
  5. Hi All I am new here without much experience of plcs. I have a PV 550 with DH485 coms port that I want to replace another PV550 with rs232 that communicated with an SLC 5/04. Is there some way to connect the two with a cable or protocol connector? Alternatively can you connect through the printer port on a PV600? CHeers   Azza
  6. Hello experts, There's an existing PanelView600 (2711-K6C5 which has only RS-232-DH485 communication port) communicating to a MicroLogix 1500 (it seem to be an LRP processor since the serial communication is connected on the CPU left side) via female-female 9pins ribbon cable (used all 9 wires that I tested just straight-connect). Now my questions: 1) I read that I can upload PV600 project direct to laptop w/serial port using also straight connect 9pins cable (using just pins 2,3 and 5) and 1747 PIC/AIC+ driver on RSLinx. Could I just use the 9pin straight ribbon cable (using all 9pins) currently used by the PV comm. to ML1500 (unplug port to ML1500 then plug to laptop serial)? 2) Could I also use this same cable to upload ML1500 program (unplug PV600 port then plug to laptop serial)? 3) The new PanelView Plus 600 is a 2711P-K7C4A8. Could this new one also used that old same ribbon straight cable? I checked that this PV+ basic RS-232 port could also handle DH485 protocol and I also checked on a manual named "Legacy PanelView to PanelView Plus 6 Catalog Number Conversion" that it seems it's the particularly the correct counterpart of the old PV600, which also particularly emphasize the comm. port (RS-232-DH485). That's exactly what this is supposed to mean right, namely that the 2 panels have similar communication port, hence no need to modify anything on communication (esp. hardware/cable) right? I'm worrying because the plant guys said that those previous conversion, the other guys wasn't able to use the same ribbon 9pins straight cable from ML1500 side port to new PV+, instead they had to use the round port of the ML1500 and then used cable with some converters along the way before reaching the PV+. What do you think? Any inputs would really be appreciated!
  7. Hi, I have PLC slc500 /3, connected with panelview 550 DH485 I have to replace the panel view by another available one which is different in part number my old one is 2711-B5A2 the new is 27711-B5A5 communication port for the new is 9 pin RS232 (DH485) when i read manual for panel view it mentioned that if i want just point to point (it is my case) i can change port configuration for the lower port of PLC to be DH485 and use cable 9 pin from 2 side first I don't know how to change port setting, if i change it how i connect to modify or troubleshoot the plc later? could i make a cable form the above port (RJ45) of PLC which is used for old panel and configured to DH485 to the new port 9 pin RS232? why when i order a panel view should mention the "ser" by the way it is Ser H??? When I try to buy new one , I didn’t find Panel view (obsolete ) gust find panel plus is it direct replacement for panel view or I need to rebuild the application program from beginning?