TConnolly
Lifetime Supporting Member
Back in 2001 I made my second ever foray into producing IEC format drawings. (the first was about 12 years ago and is best forgotten )
This was for some equipment I built for one of our European plants. Two PDF pages (modified to protect I.P.) from the set of drawings are attached. Right away I was faced with a quandry to which I never found a comfortable solution: How to represent the IO module. I am used to representing the modules as they are in the PLC rack, vertically. But the IEC drawing format doesn't seem to lend itself to that, a horizontal IO module representation flows with the IEC symbols and the IEC symbols looked funny when turned sideways.
Back then I built my symbol blocks from scratch, but since then I have new software that handles IEC formats quite well. However I'm still left with the same quandry: I'm not comfortable with a horizontal IO module representation - and I have another project coming up.
So my question is: Is there an IEC method for a vertical PLC module representation? Or is it just me that feels uncomfortalbe with a module symbol layout that does not look like an IO module?
This was for some equipment I built for one of our European plants. Two PDF pages (modified to protect I.P.) from the set of drawings are attached. Right away I was faced with a quandry to which I never found a comfortable solution: How to represent the IO module. I am used to representing the modules as they are in the PLC rack, vertically. But the IEC drawing format doesn't seem to lend itself to that, a horizontal IO module representation flows with the IEC symbols and the IEC symbols looked funny when turned sideways.
Back then I built my symbol blocks from scratch, but since then I have new software that handles IEC formats quite well. However I'm still left with the same quandry: I'm not comfortable with a horizontal IO module representation - and I have another project coming up.
So my question is: Is there an IEC method for a vertical PLC module representation? Or is it just me that feels uncomfortalbe with a module symbol layout that does not look like an IO module?