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Hi Guru's, I have a PLC5 equipped with two 1771 DB/B cards. One of the cards is diplaying a continuous red led BTL. What does this indicate about my PLC's operation or programmed communication set-up? Thanks Wgn

My experiences suggest that the best way to learn about PLC's is to interact with them at the problem solving level (get an apprenticeship). While amounts of reading will help it is the practical functioning of the processors which will bring you closer to ubderstanding the PLC and the processes...

Hi Folks, My attempts at adding new I/O modules to one of our remote I/o panels causes the 1794-ASB adapter to fault. The rack in which i am adding the new modules currently have 6 modules installed. My approach was to install the terminal base, insert the 1974-IB16 modules and attempt to...

Hi Guys, I am interested in developing (application development) my companies Intouch 9.5 PC-PLC communication system. What development license do i need from wonderware? Please comment on the average cost for such a license.

Hi i am grateful for tips on a fiber splicing tool(for single mode) in the region of USD 2500. My searches have all led to very expensive kits. thanks Wg

Thanks guys, the manufacturer has admitted a product defect.

i recently bought a Room Alert 11E device. After loading AVTECH Device Discovery and configuring an IP address to the device, my attempts to view and change device SETTING failed. The Java applet is not loading; as such the sensors thresholds cannot be changed. In addition, Installation of PageR...

Thanks Smoked, For the clarification. the APC 1500VA without addition will form my final hook up. Thanks to all others who assisted as well.

Hi Smoked, i am interested in the added battery solution, i have already replaced the Coleman Inverter stuff with an APC 1500VA UPS. i however, have three 13 plate 12v batteries sitting around from the previous set up, can i hook these up to the APC with ease?

the voltage was measured using a simple fluke RMS multimeter between open cct'ed terminals of the inverter output. i am concerned since i am will be making attempts to properly ground my radios soon.

In the process of fault finding a damaged 2.4GHz radio i found the following voltage reading on the input to the radio PoE supply. L-N = 106v N-E = 63v L-E = 63v could this N-E be part of my problem. The supply voltage device is a coleman 400Watt inverter, any advice on the use of such to power...

sorry all, i neglected to mention that the hardening took place while the varnish was in storage at temps around 39 deg C.

thank you all for your great advise. i will put some into operation on the 10 Mar. when i start the rewind. will keep you all informed. thank you.

Hi Guys, i would be appreciate some advice for the rewinding of a Brooks Hansen Motor. The motor carries 12 coil sets in groups of 4, can anyone assist me a coil connection for 2 pole arrangement. Thanks

I would be grateful if some information on the shelf life of the ULT 372 Glass Polyester Thermosetting Varnish can be provided (old product line from sterling-tech.com ). We had purchased a large quantum of same over 5 years ago and are experiencing rapid hardening rate before use. This usually...

Hi Finally, i have completed the cable (cat5)run at 500 ft which extends beyond the standard for ethernet/ 100baseT. i would be grateful for tips on possible problems i can encounter, an advice on product/s (at the cable termination/ ends)that can effectively solve any grounding problems.

In what areas of structure is the HDLC(High Level Data-Link Control)protocol not compatible with SDLC (Synchronous Data Link Control) protocol ? Is there any difference in the Information field (frame format) size of the two? i Would be grateful for pointer(s) to materials on this comparison.

Thanks All, My Project is now well underway, taking every advice into consideration for the deriving of my material cost and design. thanks Glen

hi Rob, The site was helpful, thanks much. Glen

Hi John, LOS is can only be achieved with HEIGHT considerations since their exist a very high and wide (sugar) factory building in the path.I need the flexiability of comparing the cost of going high (Tower)against external cabling. Thanks Glen