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Hello all, Recently we performed an installation of 2 PLCs model SM43-J-R20 (both containing the same program and updated to the last OS) to control 2 oil boilers. A few days ago, our customer reported the following problem from only one of them: Sometimes, one of the PLCs shows a backlighted black screen (as seen in the attached picture). However, the process in the PLC seems not to be affected since it keeps running. Then, if they restart the PLC, it works well. (Note that the PLC has been powered ON for hours when this happens). We replaced the PLC with a new one with no results. The problem is still the same. As additional info, the installation includes one contactor directly driven at 220V by a relay output from the PLC and we think that the problem described happens at the moment when the contactor is actuated (our customer is not sure about it). But as I said, it doesn't always happen as a regular issue and only one of both PLCs is showing this behavior even though they contain the same program and electrical installation. Any ideas? Thanks.
I have a V1040 with a cracked touch screen. Can anyone tell me where i can get a new touch screen
I'm working with getting names from a DT on the screen, and I got the folowing: read name from dt, row offset in string1 read name from dt, row offset +1 in string2 .... read name from dt, row offset +14 in string15 next page = offset + 15 reload. This way i can skip through the DT and show all values, but now I got a strung with 15 times almost the same code. The problem is that there isn't a array[string] with which it would be possible to make a loop. If there would be an array[string] then i could save at position [offset] and next time [offset +1], but now i need another name thereby I't isn't possible to make a loop. Any ideas?