Hello everyone,
I'm really interested in playing with PLCs, i'm thinking of picking up a TECO GENIE II SG2, its relatively inexpensive. As for the power supply, instead of buying the TECO power supply, can I just use my laptop power adapter or a simple plugin 110VAC to 24VDC converter (like...
Sorry for the late reply,
I am using S7-300. This cable I got from ebay, its not the original Siemens cable.
However I just realized that it does not support Profibus and my PLC and HMI are connected through Profibus. Anyone have any idea as to how to modify the cable to work with profibus?
Thanx
Hello everyone,
I have USB MPI+ cable v1.2 and my OS is win Vista ultimate I think i need to upgrade to v1.3 and in order to do that one end of the cable needs to be connected to the PLC and the usb to the computer, my question is that if to do this will it change any thing inside the PLC or no...
Slynk,
I havent completed it as yet, got side tracked by higher priority projects, and yes both the production rooms and corridors share the same AHUs. My logic behind setting return higher than supply is, if i reduce the supply dampers in each room to minimum and then open the corridor supply...
Davidcamell,
Yes the air is mixing, but its going through filters before it mixes, and when it mixes it passes through more filters and finally passes through HEPA filter before entering manufacturing area, so there wont be any cross contamination that way.
We dont have any terminal boxes.
For...
Hi ChasBean1, thanx for replying
Due to ridiculous amount of humidity outside we reduced the OA damper to about 5-10% and same with EA damper, so almost all of the air is returned at the moment.
But do you think it makes sense to run return VFD at 55Hz and supply VFD at 45Hz?
Hi everyone,
I'm currently tasked with balancing air in a new pharma company and it would be great if someone can tell me if i'm on the right path.
On the main manufacturing area, there are about 30 rooms, each room has most rooms have 1 to 3 supply air diffusers and 1 to 2 return grills...
I dont think anything is written on stone, but what they mainly look for is that you have differential pressure, and that air flows into the room when opened rather than out of the room. If you can show that by keeping the door opened the differential pressure is still + ( air going into the...
