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Hello, My company has used trapped key systems to allow someone to enter a robot cell to touch up which requires valve power on. We also allow entry into the cell with valve power off, and the robot fence circuit open. We are eliminating trapped key, but my counterparts would like to have a...

All, I have ANSI B11.19 1991, and I believe this was the first year that Control Reliability was mandated, and defined. Please correct me if I am wrong. Thanks you in advance.

I have several RS5000 projects and when I opne some of them if I select Communications->Go Online all is well, some files however give me a communications path error. When I get this error I go online using Communications->Who Active and even if I save the file I still have to use Who Active to...

I noticed that the RIN instruction will alow the same input to be used for both inputs of the block. This seems a little odd to me as it will allow the user to fatfinger the control reliability right out of the instructiom. Doesn't this seem odd?

I currently have an application where I am unloading 4 columns of part from a rack and loading them to a transfer system where they are indexed one at a time into a press. The parts are roll formed and there have been reports where two parts, from the same column, are picked up by the robot. I...

I would like to know how to properly size a robot to a particular application, typically GMAW, resistance welding and material handling. My specific questions are; Should the capacity be derated based on extension? What effect does payload have on speeds and paths? How often should the...

My plant has a Nachi SA160F-01 robot in house, we are reviewing the process (spot welding) for the purpose of cycle time reduction. One suggestion is to mount 2 weld guns on the EOAT, the welds are symetrical about the center line of the part. I am assuming the capacity of the robot to be...

Where are class two power supplies required? More specifically if an industrial control circuit (24VDC) is powered by a supply limited to <8A? Does an industrial control circuit fall under the classification a remote-control and signaling circuit? Thanks for your help.

Single ended, Double ended. http://www.control.com/1026216953/index_html

Does anyone know where I can get a voice synthisizer that I can connect to AB remote I/O or Devicenet? Thanks.

I am looking for a software package that will gather data from a CLX processor and store it in a multi-dimensional database. The package must allow easy set up for data to be viewed by production, engineering, maintenence, management and so on. Bizware is an example of a package, but I am...

I am trying to improve my C skills by programming an example that I obtained from the internet. I have entered the code for a single document window and a dialog box. The dialog box contains a EditBox and A button, I want to write code to respond to clicking the button. I am trying to learn...

I am trying to code a string concatenization subroutine using ControlLogix ST. The sub uses 3 Input parameters. InputParam1 an SINT, is how many elements in the array, 3 in this case. InputParam2 a STRING, is a pad character, : in this case InputParam3 is the array of STRING with the following...

I have worked for a tier one supplier for over 14 years. Our convention with respect to locating pin nomenclature has always been the pin is advanced when it is ready to receive a part and retracted at some point in the cycle to facilitate part unloading. We are in the process of building...

I need to write a program that will send out the Modified Julian Date to a part marker. I will use the PLC date to calculate MJD. I am thinking of using a lookup table, but want to field a few suggestions first. Any ideas anyone.

It seems to me that there are requirements that a machine my not be placed into an automatic mode using selector switches. Can anyone give me a refresher? Thanks

I have a tool that we want to put on the plant network. I look at the I/P address offline, it conforms to our spec so I believe it to be the correct I/P address for that processor. I cannot ping it so I need to go online through the DF1 port, which is configured to communicate with a...

Can anyone provide the N.E.C. Citation with respect to requiring covers over fuses etc. in control enclosures?

How do you properly size a circuit breaker to operate at 24VDC? We are now using 24VDC control circuit voltages and I want to be sure circuit protection is correct. Thanks

Article 400.7, NFPA 70, seems to prohibit the use of cable as a primary power feed, 600V, to industrial equipment, unless the installation is temporary. Yet I can buy bus-drop cable, and the manufacturer specifically calls out NFPA 70, Article 368, and states that the cable is suitable for use...