Out of curiousity I did a web search for "Toshiba plc". The first page listed had all the info pertaining to Toshiba plc's you could ask for.
I thought I had dealt with Toshiba in the past but couldnt remember when then I saw the Cutler Hammer page and remembered that Toshiba built their line of plc's.
That reminded of something, years ago I worked in a plant that bagged a cementitious product. The bagging process was automatic, a magazine held the bags and an arm picked up one bag and placed it for another arm to pickup and place on spout. Anyway I got called in one night because nothing would work, I spent hours looking at the system. I had all inputs working, power was good but no outputs at all. I tried everything but couldnt understand why the plc wasnt working. Anyway I was tired and couldnt think anymore so I just sat down on the floor looking at the cabinet and this plc. The thing was mounted vertically with inputs on one side and outputs on the other and an expansion module attached under it. Anyway I am just sitting on this cold floor looking at this plc, all of a sudden I notice that it has a really small switch near the center, I remember the word HALT printed by the switch. The weird part is that to put the switch in HALT you had to push UP, well the switch had to have FELL UP because it was in HALT position. I pushed the switch down (RUN) and everything worked fine.
I am telling this story not to show how slow I can be but to show that what you least expect can sometimes be the problem. Who would have thought that a switch could fall UP all by itself (stated facetiously), it never occured to me that the plc could just be off.
I hope this will help someone in the future.
