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Found 32 results

  1. Im having some trouble with a PLC and looking for a some help. Whats happening is output number 3 is stuck on. I thought maybe it was just the PLC. I pulled the program tried it on a new PLC with no luck. I checked for faults and the handheld shows no major faults. The output that is stuck on is for a door, its telling it that the door is open. Any help would be great.
  2. I have a micrologix 1200 series module which goes on fault mode after providing it in run mode and it shows an error of 81h whenever i clear the fault nd go to run mode i get faulted again. Please help guys  
  3. S7-300 CPU is in STOP due to a Profibus failure. We have a facility with a Profibus master CPU and multiple modules with Profibus interface and when we insert the memory card with the CPU program does not change to RUN, it stays in STOP. Read more:  http://www.tecnoplc.com/fallo-profibus-cpu-stop/   Greetings. _________________________________________ PLC programming and HMI http://www.tecnoplc.com
  4. I hope to be able to provide more information, but for now this is what I have. I have a SLC5/05 that faults whenever a graphic display is pulled up from a Cimplicity HMI. So, the PLC is not faulted while all harnesses are connected to the I/O modules, and while the Ethernet cable is plugged in, but it appears to fault when a corresponding graphic is called up that includes tags from the particular processor. There are two PLCs on the network, and I am not certain if they share data between each other or not, or if the data is just being shared to a common Cimplicity HMI. Another strange thing is that one of the PLCs on the network is using a MSG instruction to pull data from what appears to be the PLC that continues to fault, but the IP address configured in the MSG instruction does not match.
  5. Hi, I have a ControlLogix L63 processor. We had a power outage the other day and the PLC went into Major Fault (Type 6, Code1). It is quite easy to find out what these mean (from vendor manual). However the major fault was reset before i looked at it, so i couldnt find any specific details on what routine faulted. There is GSV instruction in the fault handler to get the details of the Major Fault (MAJORFAULTRECORD). This recorded the TimeHigh, TimeLow, Code, Type and Info. I am now trying to determine what the date in the ".info" records mean (8 registers). I cant find this in any manual. Can someone help?
  6. All CPU led falshing

    Hi, I have S7 300 CPU all its leds falshing in same frequency this happen while it running and can't access to it online if we make power reset and selctor on stop it start normal and when try to go online all leds flash if we make power reset and the selctor in run position it start and after a few second start flashing can any one advice me what i do ? what is the possible causes of that
  7. Graph, acknowledge supervision fault

    Hi im quite new to Siemens programing. I got a issue that iwe been stuck with for a while now when im programing in Graph. When a supervision_fault happens the sequence is locked until I press ACK_EF and the transition is fullfilled. Then the sequence continues right on. What I want is that if ACK_EF is pressed the supervision fault will be cleared and the sequence remains paused until I press "Startbutton" again. I´ve tried Halt_SQ when the FAULT is triggered but I cant seem to get the FAULT down when I ACK. Also tried to switching it over to manual then ACK the fault. But that didnt work for me either. Hope there is someone that could help me with this :) It would be much appreciated!