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How can I do a hardware 'factory reset' on a Q UDE CPU .... NOT using any software such as GX Developer or Works? I understand in the 'Write to PLC' menu it's possbile to Clear / Format / Arrange PLC memory - this isn't what I'm asking for. Under normal circumstances we routinely reload the PLC code / parameters / intelligent function data all remotely from our offices to our customers facilities and all works well. With the newer Q UDE CPUs it is possible to scan the network and effectively do a remote bare-metal recover to a new CPU. If the Q UDE CPU became unresponsive I would like to know how to reset the CPU back to factory defaults. In this scenario we would be asking local site electricians to carry out this reset procedure - after which we would reload the code remotely from the office. Documentation says power down CPU remove BAT for > 10 mins. I’ve powered down, left in STOP state and removed BAT for 16hours - then tested this morning – IP / program perfect and online immediately without battery connected. This retention is a wonderful feature – but if I want to deliberately do a hardware factory reset how do I do it ?

Hi All, Thanks to all who helped with my first post - how to get started with a second-hand CPM1A PLC.  Thought I should now start a more specific thread. I now have Syswin 3.4 running in Windows xp mode in Windows Virtual PC, I think I have a Chinese USB-CIF02 comms cable/adapter and drivers correctly installed in Win xp mode.  The PLC powers up with the PWR and RUN LEDs lit.  The USB adapter TX LED flickers when I use the Syswin comms test function, indicating that Syswin is talking to the adapter.  But having tried 128 combinations of comms protocol and unit address at 9600 baud without success, I believe there are now two possibilities. First, while Syswin is sending something to the USB adapter, it may not be 'talking' correctly to the PLC .OR. the PLC is set for some unusual communications settings for reasons unknown, that I may never be able to stumble upon.  Both possibilities could be eliminated if I could return the PLC to the factory default state, with a known comms setup. However, it seems the comms settings in DM words are stored in Flash memory and can only be changed if I can 'talk' to the PLC - Catch 22?  I can find no sign of any DIP switches or hardware reset button etc.  Surely there must be some way to clear the flash memory to return the device to the factory default state?  All suggestions gratefully received. Ian

Hi All, Anybody have used this Powerflex 755 option card( 20-750-UFB-1 )?.. im using an SEW absolute encoder with sin cos config. my question is how to Home or zero the reading, which encoder parameter should i call. Big thanks for help... Cheers

Hello, I'm from Poland. I would like to use the Sony Xperia Z to communicate with Omron NB screens using free software Omron HMI Remote Viewer. Unfortunately, I can not install this software. The attempt ends with the message "Your device is not compatible with this version". Android have software version 5.0.2. Does anyone in this matter can advise me something? Thank you in advance. Bogdan

Hello, would like to change some ideas with you. I´m working in a new project and need convert an SLC500 to Controllogix, with a 1747-AENTR is possible create a SLC500 Eth remote.... but in my case i have two 1746-A13 (conected by expansor) and can´t add all the modules in a rslogix5000 aplication. In the 1747-AENTR manual say that is possible in the v21.00 of the rslogix5000... I really need install this new version? Don´t have other way? Thank you! Vitor Prado

I am working on Remote IO panel and plan to use the following components: 1734-AENT 1734-OW4 - qty 2 1734-IE4C I wonder if I need to separate the bus between the relay output module and analog input module? Or anywhere else in this setup? Thanks.

Hello, I'm working with some old Allen-Bradley SLC5/04 systems with 1747-SN modules. The module is located in Slot1. One system is only using the RIO module for a PV1000. How do you know where the "M-Files" for Analog I/O modules and/or Panelviews are located? I see programming using locations such as: M1:1.810 where 60 words are being copied from a Remote I/O PV1000 to some words for the SLC to utilize, but I don't understand why "M1:1.810" was used instead of, for example, "M1:1.800"? I looked and so far cannot find information pertaining to the words other than what is in the User's manual, and it doesn't address this issue. The panelview in my example uses all of Logical Rack 0, Full Rack addressing. Any help would be most appreciated. I have very little experience with the RIO stuff because almost everything I've worked with in the past has been Devicenet.

I need to change the IP address of an existing PLC. Only access I have is remote (VPN). Is there any issue with downloading the same program - with the IP address changed - to the existing processor? Then change the local network range to match, etc...