Troubleshooting Blower Shutdown
I have a bank of 12 blowers that all shut down every other Tuesday morning at about 7AM. when they shut down there is no alarm and they don't need to be reset to restart. I am lost for how to continue troubleshooting.
By Mike on 26 July, 2016 - 1:37 pm
Is there any chance of network storm? Alternatively are IEDs connected to network or...
Are IS Barriers Required for Instrumentation Rated Class II?
RTDs and TCs Connection Head material Selection
RTDs and Thermocouples Connection Head material Selection
Horizontal Pitch in a Spiral
Need some information about the horizontal pitch in a spiral for the placement of sensors in the oil tank.
Molten sulfur (including iron impurities) flow
No reply from the modbus RTU devices despite a right setup on modbus devices as well as in the Docklight software.
Ratio of Analog Input to Output - DCS
Posted by Jonathan Law on 21 July, 2016 - 6:59 am
Could anyone give me guidance into the ratio of Analog Input channels to Analog Output channels in an averaged sized DCS implementation.
By Daniel on 25 July, 2016 - 12:23 pm
It all depends on how many Final control devices! Depends on type of Industry, Process etc... Only...
Siemens HMI to Emerson Drive via Modbus RTU Communication
Pressure gauge needs ATEX certification ?
Mechanical gauges need ATEX
By AN Neel on 21 July, 2016 - 4:51 am
Yes Agreed, but what is the reason? as level gauge has not any potential source of ignition. ...
Diplacer Level Transmitter Viscosity Limit
Wondering about the viscosity limit for displacer level transmitters.
Medium Voltage VFD Drives for Sugar Mills and Cement Mills
I am working on the projects about MV VFD drives for sugar mills and cement mill motor control, for energy saving and process reform.
Torque Converter Filter Type
Looking for information about torque converter filter properties for GE Frame 9E
By ahmed on 18 July, 2016 - 2:16 pm
thank you for your fast reply. Yes I am confused. there is a strainer not filter, but I have not...
on 17 July, 2016 - 2:10 pm
All of my experience with GE-design Frame 9E heavy duty gas turbines was with units which used a...
Alternative method of measuring density (Mathematically)
Need a count/pulse per foot
By SteveMyres on 11 July, 2016 - 8:06 pm
Chain's fine if you have a support. Heck, it wouldn't even work right without the support. The...
By Mike Larkin on 11 July, 2016 - 2:12 pm
I just hope your machine is gear driven instead of chain driven. It is impossible to get any...
Testing PCS 095 Communications
Can someone tell me how to test the PCS 095 communications RS485 using a PC with a same port (Rs485)?
Automating a Workcell Robot
After our integrator failed miserably to do his job, I was tasked by my boss to integrate a Fanuc robot into our CNC line.
By Bob Peterson on 7 July, 2016 - 10:29 am
By the way, I don't want to entirely discourage you from trying to fix this yourself. Whether you...
By Bob Peterson on 6 July, 2016 - 10:02 pm
A lot depends on what it is you are planning to do. Some things are relatively simple and a person...
Modbus Communication Unstable
Modbus communication unstable. Scanning results is not the same as modscan32 and PMC modbus.
By pvbrowser on 1 July, 2016 - 1:17 am
You will need a serial port sniffer. See the videos on youtube that start with this video. ...
Ethics/Rules When it Comes to Cycling Power to Safety Modules?
Users are cycling power to the entire machine, to reset a faulted safety module. Can I do anything about this?
By Bob Peterson on 29 June, 2016 - 8:01 pm
I don't think there's a major issue with turning off the power to a safety component using a PLC...
By James Ingraham on 29 June, 2016 - 2:45 pm
I would be hesitant to use a PLC output to control the power to the E-Stop controller. While I...
Bently Nevada 3300 Radial Vibration Problem
Radial vibration read exists although machine is tripped (stop)
How to Assign MODBUS ASCII Address ?
My current problem is i can't assign a device address into a chip. how should i assign the MODBUS ASCII frame into a chip for the gateway to recognize it?
We want to convert .LGH file generated by Wonderware Intouch SCADA to Excel or Access readable format...
By Dan Jones on 27 June, 2016 - 1:02 pm
As of June 2016, WorkSmart Automation has developed a new product that reads Wonderware InTouch...
How to Recover the Password of Privilege 2 of Toolbox
I need help about how to recover the toolbox password of privilege 2
Why is a Default 0 Switch Added to PLC Logic?
I'm analyzing programming code for a client and I noticed a switch that basically prevents the PLC from writing an input to a variable. I'm not sure why the original programmer added it there. Details are below.
Why Are Short Circuit Lines Used in RSLogix 500 Ladder Logic?
Why would you use a short circuit line in RSLogix 500?
Can PLCs be used with microcontrollers?
By George on 23 June, 2016 - 10:44 pm
The Answer is Yes. But there is a catch to it based on application. PLCs are designed for more...
By Bob Peterson on 23 June, 2016 - 5:25 pm
kind of depends on what the instructor accepts, doesn't it? -- Bob http://ilbob.blogspot.com/...
By Ikhtiander on 23 June, 2016 - 1:14 pm
Hi Merete, The answer should be yes. could you please more details on the project specification...
We're crafting a premium graphics library specifically for HMI applications, and would appreciate this community's input.