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  1. Hi All, I am pretty new at electrical design for PLC control panels. We are a UL508A shop, so this is the code I refer to most. Something struck me as odd when I was trying to size wire for this control panel. UL508A 28.3.1 says this: The required size of the field wiring terminal shall not be less than 14 AWG (2.1 mm2) and shall be determined by: a) Calculating the required ampacity per 28.3.2 – 28.3.6; and b) Determining the minimum field wiring conductor size from Table 28.1 having a corresponding ampacity that is equal to or greater than the required ampacity from (a). How can the minimum wire size be #14 AWG? We use #16 AWG for wire to the PLC modules? Are we breaking code or is there something I am missing? Also, understanding code books can be difficult. Is there a website or place I can go to get a plain English translation? I feel like I will read a sentence over and over again to try to understand what they are saying, and feel like there's is a much easier way to say it than the way it is written. For example, "28.3.1 b" ……...what is it really saying?  
  2. hi all   good morning i having problem to change the wire colour  i not sure why the others drawing can be done but not this one.   appreciate help eplan - wire colour cannot change.elk
  3. Good afternoon Mr.PLC forum members.   We recently had a fuse blow on the wiring between a 1756-OF6CI analog out card and a control valve (which we have no feedback for - only the 0-100% output). Took a little longer to troubleshoot since we have no feedback and we also don't monitor individual channel status of the card. For input cards (1756-IF8H or IF16H), it's easy enough to use the under-range/over-range or broken wire signal to troubleshoot a blown fuse or bad connection, and activate an alarm. I have been told by our local consultant-technician that there is an equivalent monitoring bit for output cards. Reading the instruction manual for the 1756-I/O cards, the fault channel bits do not seem to have this type of function for the 1756-OF6CI. The fault bits only seem to look at the requested output values, and at the connection between card and PLC itself as far as I can tell.  Am I missing something?   thanks for your help
  4. During run time on my KTP700 BASIC HMI panel, there is a keyboard pop-up screen that appears, when I press on an input field (for example, like the one in the inbuilt Logon pop-up screen). Is it possible to change the font size, and/or the size of the keys on this keyboard? How so? Thanks in advance.
  5. I am using a KTP700 BASIC HMI panel. I have two languages in the HMI program. On the inbuilt Logon screen, I want to show English text in size 21, French text in size 15. In Runtime settings > Languages and Fonts, I give each language different font sizes, but when I run the program on the HMI panel, they both show up the same size. (For example, I set English to font size 21, and French to font size 15. However, if I access the password screen in English, then later in French, the text is shown in font size 21 in both occasions). This is a problem because the French words are longer, and hence some letters get cut off. Any ideas about how to get around this? (besides just using font size 15 for both?)