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  1. Hello I would like to first let everyone know I am new to the world of troubleshooting or programming plc's . What we have is a SLC500 system that is connected to a Panelview 1000 HMI via the DH+ network. The issue we have is the panelview displays a gate that is suppose to be closed at as gate fault. When i connect to the plc the ladder rung shows that the gate is closed. To show various positions of the gate the programmer used N13:70 as gate opened and N13:71 as gate faulted and N13:72 as gate closed. When i checked the logic it showed the bit N13:72 as engaged or true if you will. This logic is in the ladder rung that is labeled PV Status which i take is the status the HMI reads so my question is why does it show GF when it should be reading GC. Ive searched all through the logic and it doesnt appear to be wrong here is the logic the best I can simulate it  ladder 6 rung  53  instruction is  XIC O:13.0/11 and OTE N13:76/0 (Gate Open ) and the branch is XIC I:5.0/11and OTE N13:76/1 (Gate Fault) next branch is XIC N13:3/11 and OTE N13:76/2 (Gate Closed which this section is green or highlighted or true which ever you like) when i looked at the input XIC N13:3/11 this is what I found is that this XIC is on ladder four rung10 and has the following XIC T4:154/DN and branchoff that is XIC I:5.0/11(gate opened)XIC I:6.0/11(gate closed) which these two inputs are false or not lighted the output is OTL N13:3/11 and it is true which makes the previous rung true showing the gate closed. So why is the panelview showing the wrong position. I even went as far as resetting the HMI and the PLC so if anyone has a helpful hint I would greatly appreciate it.
  2. HI All, i am new to this site, if anyone can help me out for below topic. I am trying to communicate E1101 hmi with Q06UDEH PLC but its giving me continuous communication error. i am using e designer for hmi and gxworks2 for programming. i am attaching the communication screen shots for both,i am quite stuck at this point as i have used all options still not able to solve it. if anyone can help me out with this,help is much appreciated. Thanks in advance  
  3. I am trying to get the communication going between EZ3 EZAutomation Panel HMI and Omron NJ501-1300 PLC. I am currently using Modbus TCP/IP as a protocol. Has anybody figured out a way to do that? Or is there a better way to do this communication between HMI and PLC ? Right now I am using MTCP_Client_Connect function block to connect with HMI but it dont seem to be working. The IP address is correct along with Port no. I am still fuzzy about the Station address of NJ and the function code of the NJ for Modbus purposes. If anybody could help me out I would really appreciate it.
  4. Micrologix 1000

    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.
  5. I just commissioned a system utilizing 3 1756-IRT8I TC Analog Input Modules. It was soon discovered that there were sags in the order to 2 -10 % in the inputs across all channels. These sags occurred in all three modules but at different times but were occurring more or less on ~4-6 hour intervals. There are two CJC inputs (Cold Junction Compensation) and it was discovered that one CJC value also sagged while the other one remained constant through the sags. Tech Support had no information about the issue, but eventually found that there was a thus far unannounced firmware update, that was made available. The problem modules all had FW Version 1.013 and the Update Version as of Mid Oct, 2015 is Version 1.014. Following the FW update, the sags are no longer being seen. Bob A.