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  • Users: xyzz
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  1. xyzz

    Automation - Is PLC Best Option?

    Forgot to mention: look for a controller with integrated display, to allow the necessary adjustments.
  2. xyzz

    Automation - Is PLC Best Option?

    Uptickk, you are doing a typical mistake of a novice in automation: you imagine more or less clear the normal operation of a system, but do not think of malfunctions. Here is an example: what if the sensor signal disappears instantaneously when the pouring is in process? If all the logic...
  3. xyzz

    First pass - OSR

    S:1/15 is "First Pass", that is first scan pulse. This is a system read-only bit active only in the first scan after power up or switching from programming to run. The B3:0/1 in the shown code is "not first scan pulse", that is "the second scan". If the B3:0/2 is being set by "the second scan"...
  4. xyzz

    -24V NPN

    There is no -24V in your system. All voltages must be positive relative to the 0V. Active PNP output connects the load to the power source voltage (+24V) and is called sourcing. Active NPN output connects the load to 0V and is called sinking. Both are subject to voltage drop on the output...
  5. xyzz

    Interface modules

    You have to clarify what modules you are asking about, in both questions. It sounds like not about PLC modules, or your terminology is very incorrect.
  6. xyzz

    Omron com with Powerview Touch panel

    Omron serial port common is pin 9 unlike usual 5.
  7. xyzz

    Motoman NX100 serial communication protocol

    Need to communicate on RS-232 between Motoman NX100 and PLC in order to send to robot job# and some other variables, and to receive readback, error codes, etc. Where can I find the protocol basic description? Yes, I know it may be a proprietary protocol. Still somebody may have the information...
  8. xyzz

    Panelview 550 to SLC 5/03 comms problem

    Are you aware that PanelView needs straight RS-232 cable, not a null-modem?
  9. xyzz

    How to save data to PC from Mitsubishi PLC

    There is also MelDDE32 DDE driver although deemed obsolete.
  10. xyzz

    Connecting safety relay input circuits to PLC inputs

    Sdl, thank you for detailed answer. As I said, we produce packaging equiment (cartoners). The circuits mentioned do not compromise the safety functions. My main concern was whether this may be considered "tampering" with the safety relay, which is directly forbidden in the relay manual.
  11. xyzz

    Connecting safety relay input circuits to PLC inputs

    Let's respect each other, guys! What good is such an answer? If it was that simple, sure I would read it myself. From my past experience though, one can spend many days studying such books and still have no answer unless directly refered to specific paragraph. I asked very specific question in...
  12. xyzz

    Connecting safety relay input circuits to PLC inputs

    Our packaging machinery OEM company is using safety relays in dual channel manual reset configuration, with ground fault and short circuit monitoring. We would like to split signals from certain points of safety switches serial chain, for applying to PLC DC inputs. Does anybody know about...
  13. xyzz

    Help with ladder logic determining direction with quadrature

    Are you using a high-speed counter? If yes, it must be a bit in the PLC for counting direction indication.
  14. xyzz

    serial ports

    OMRON has made a smart improveent on CP1H- its programming port is USB.
  15. xyzz

    serial ports

    I am using Acer Travelmate notebook with WinXP. USB-to-Serial (I prefer Tripp-Lite), PCMCIA and 1747-UIC work all fine, however: - Windows assigns different COM to the same device when plugged into different USB connectors. Not a tragedy but keep this in mind. - Windows reboots if the USB device...
  16. xyzz

    Trouble connecting to MicroLogix1000

    You must indicate in the DF1 driver configuration the device type SLCCH0/Panelview/Micrologix and error check mode CRC. Then try autoconfigure. Another possibility is that the PLC is configured for DH485 protocol, in which case you must use the PIC/AIC driver.
  17. xyzz

    Swedish Joystick

    Swedish Joystick... Good title fo a porno movie :)
  18. xyzz

    Interger XIO bit Question

    6 below the contact name is the bit in the N10:10 integer word. A bit status may be monitored and toggled from the ladder, without viewing the datafile.
  19. xyzz

    GX IEC DEVELOPER

    Read manuals :)
  20. xyzz

    Analog output 0-30VDC

    And what resolution and responce time do you need?

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