neilr216

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Posts posted by neilr216

  1. Posted

    PdL, Thanks for your speedy reply In answer to your first question, no changes have been made to the network for some time. We will follow your suggestions and post the results. Thanks Again,

  2. Posted

    DEVICE NET ISSUES ON PALLETIZED ASSEMBLY LINE OMRON CS1W-DRM21 DEVICE NET MASTER 54 SLAVES ERROR: D9 (REMOTE I/O COMMUNICATIONS ERROR) - ERROR LOG(HEX) 0345 DETAIL : 0111 - BYTE 1 = 01 (MASTER) BYTE 2 = 11 (DEC 17/NODE 17) NODE 17 IS A NUMATICS G2-2 I/O VALVE BANK DETAIL : 0127 - BYTE 1 = 01 (MASTER) BYTE 2 = 27 (DEC 39/NODE 39) NODE 39 IS AN OMRON V600-HAM42 RFID DETAIL : 0114 - BYTE 1 = 01 (MASTER) BYTE 2 = 14 (DEC 20/NODE 20) NODE 20 IS A NUMATICS G2-2 I/O VALVE BANK DETAIL : 011E - BYTE 1 = 01 (MASTER) BYTE 2 = 1E (DEC 30/NODE 30) NODE 30 IS A YASKAWA JARCR-XFB01B WE LOGGED THE NUMBER OF THESE FAULTS - UP TO 50 PER DAY THE ONLY TIME IT MATTERS IS WHEN IT SHUTS THE LINE DOWN WHEN THE ERROR OCCURS DURING A V600-HAM42 READ OR WRITE OPERATION. WHEN THIS HAPPENS, THE NS INDICATOR ON THE V600 FLASHES RED, AND THE ONLY WAY TO CLEAR THE FAULT IS TO REMOVE DC POWER FROM THE V600 UNIT AND THEN RE-POWER IT. WE HAVE CHECKED EVERY CONNECTION AND EVERY GROUND POINT. DESPITE READING THE CS1W-DEVICE NET PDF MANUAL FROM START TO FINISH - WE ARE NO CLOSER TO A SOLUTION. ANYONE OUT THERE HAVE ANY IDEAS AS TO WHAT THE PROBLEM MIGHT BE? WE ARE WILLING TO LISTEN TO ANY SUGGESTION. THANKS IN ADVANCE,

  5. Posted

    Let me describe our installation and the issues we are having and maybe someone out there might know what is going on. We have a CS1G-CPU42-EV1 with 10 C200H-IDS01-V1 RFID modules. It's sole purpose is to read and write pallets at 10 stations on our assembly line. There are 20 stations on the assembly line, with the remaining RFID being taken care of by a CS1H-CPU67, which also has 10 C200H-IDS01-V1's mounted, as well as normal everyday digital I/O modules and 1 Device Net Master. Bits in the program used to control the RFID read/write functions in the CS1G are communicated through Controller Link. The issue is this : Since the assembly line has been running, we have had intermittent Read/Write faults, which for various reasons we would consider normal. The number of Read/Write faults on stations controlled by the CS1G however, is at least 20 times as many as the stations controlled by the CS1H. This has lead us to wonder if the CS1G (during times when all ten or many of it stations are attempting to read or write simultaneously) might somehow (because of its processing speed) be causing the faults to appear when there is no physically apparent reason for the fault. We have compared the # of faults on this assembly line with other lines which are running CS1G-CPU42H plc's with the same # of IDS01's and there few if any RFID faults on the lines using the H series PLC. Thanks in advance, Dazed and Confused

  6. Posted

    We have 2 Cpu67's running programs with approximately 44,000 steps each, on is running in SYNC (as viewed in the status window) and the other in ASYNC. The scan time of the SYNC PLC is a mean of 18ms. The ASYNC PLC is running a mean of 45ms. The code in each PLC is very similar, since they are controlling equipment assembling similar products. Both PLC's have device net control & RF Read/Write. The exception is the ASYNC PLC which is linked to several smaller PLC's through CLK21 Controller Link Modules.