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ASCII !@#$!@#(*&^

November 29, 2017, 4:10 pm
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Hi Guys,

I need help/advice.  First, I'm not new to PLC programming and design. I've been doing this for 30 yrs.  OK that said, 30yrs ago I cared about things like PLC5 serial communications sending ASCII characters as it was a common thing.  Well, I've slept and drank a whole hell of a lot in 30yrs so I really don't care now but I need to do it again.

I'm working on a PLC5 to Control Logix conversion.  The company will not update this ancient chamber environmental control.  So, the ASCII coms need to stay.  The old PLC5 took the command string to change the temperature and did a AWA command and out port 0 the new temp setting went.  Logix however, it is not that pretty.  I'm using a Prosoft Technology PLX31 Ethernet to ASCII.  My problem is, the Prosoft device data table in the Logix is data type SINT.  How do I get the command string "L1S"+temperature value, example 27C, so the command would be "L1S27" into the data type array of SINT.   The header is constant.  The only thing that changes is the digits.  So would you guess I convert the L & 1and put those in the first address, S and the first digit of the temperature in next address and the remaining digits in the 3rd word?  

Perhaps I'm making it all too difficult.  From what this old memory is telling me, I need to convert each character into the ASCII Hex or Decimal equivalent.  So anybody out there still familiar with this s....tuff? 

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How to delete FactoryTalk View Programs

August 18, 2015, 5:22 am
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Hey, this is probably a stupid question, but how do I delete old FactoryTalk View Programs. They are the ones that I have uploaded from a PanelView Plus via the "Transfer Utility" and then restored runtime using the "Application Manager". I open up FactoryTalk View Studio and I can see a list of all the runtime applications or I can create a new one. My question is, where are these applications stored by default? I have a bunch of old ones and test programs that I want to delete that are just cluttering up my list. I attached a screenshot to show you exactly what I'm talking about. Thanks, I'm sure this is a pretty easy/ dumb question. Howard
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Logix5000 alias information

December 1, 2017, 6:16 am
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What is this (C) on the attached picture, in the Alias line?

Alias.jpg

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Actuator Sensor Interface

December 2, 2017, 11:02 am
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I first saw AS-i at a factory this week and am trying to figure out what Allen Bradley modules can interface it. I am not finding anything, does AS-I go under some different name?

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**RSLogix 500 Unattached Rungs**

December 5, 2017, 8:41 am
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Hello all, 

I am doing a project in RSLogix 500,  I copied the logic from an existing project that is very similar just uses a different controller and some new analog inputs into a new RSLogix project. changed the controller type to match the new one i am using. My issue here is my rungs keep moving when i scroll through the project, they stay on the line number but  keep coming unattached from each other even after I verify edits and so on has anyone had this issue or may know how to fix this problem? Any suggestions are much appreciated.

Thanks,  

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Studio 5000 windows 10 bugs

May 7, 2016, 7:14 am
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Hi

I just purchased a new laptop and it was shipped with 10PRO, I decided to give it a try before downgrading to 7. I have nearly all the Rockwell Software working with the exception of a bug in Studio 5000. If i try to go to TOOLS and then import Tag and logic comments the dialog box never pops up. the same thing happens if i try to click Save As. 

thanks

 

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New user! Semi green programmer

December 7, 2017, 3:40 pm
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Hello, I was hoping by joining this site that I could get the chance to talk to a couple of much smarter more experienced individuals. Currently I am trying to figure out a way to track a spool of material as it unwinds, I’d have it display a warning when it gets low , and stop further processes when empty. This would be easy if the spool would be a consistent size, but that’s where I’m having issues. I was initially thinking of using a laser sensor but I’m not sure that would work since of the differences in size. If you have any tips or ideas I’d love to hear them thank you!

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RSLogix 5000

December 9, 2017, 10:37 pm
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After install finish can't open PLC have alarm fatal Error, how to fix it?

RSLogix 5000 2.PNG

RSLogix 5000.PNG

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Help with Failing firmware upgrade on compactlogix l24er qbfc1b

December 10, 2017, 9:32 am
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I have a new plc and am trying to connect the first time on power up.  I have done this many times before but now am having an issue that I do not understand.  When attempting to connect the first time I am using my usb connection in RSwho active and selecting the processor.  When attempting to upgrade the firmware I am getting an error stating" Failed to begin update to the target device.  The target device is not in the proper mode to accept an update." its error message 11006  .  I have the switch to program mode, I reset the power a couple times and still no success.  I cannot clear a flashing red light on the plc ok status light but i think its because there is no program in the plc yet.  what am I missing??  i added the pics of the error messages.  

  

plc errors during firmware upgrade.png

plc issue.png

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RSLogix Project Migrator

December 11, 2017, 10:50 am
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How to use RSLogix Project Migrator to convert PLC 5 project to ControlLogix ?

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PowerFlex 40D Variable Frequency Drive (RS485 communication wiring)

December 11, 2017, 10:29 pm
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Trouble with Configuring Kinetix 5700 Dual Feedback

December 12, 2017, 3:02 am
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Hi everybody.

Im struggling trying to configuring a kinetix 5700 servo running in dual feedback mode.

The drive is a 2198-D032-ERS3.
Motor type is VPL-B1304E-P
Load Feedback sensor is a Magnetic incremental linear encoder. Reading at a "magentic tape" with Resolution 0.01 mm  (at 4-edge triggering) and Repeat accuracy ± 0.001 mm.

I´ve set this one up as
Type: Digital AqB
units: Meter

Cycle Res: 25000
Cycle Interpolation: 4
effective Resolution: 100000

In Scaling ive calculated the Ratio in the transmission section. So if i go with motor feedback only i manage to go to position +-0,15mm at a range of 9000mm.
So i think that is set up correctly.

But when I try to go with Dual feedback for more accuracy. I can only enable the axis and execute mam instructions when the actual position is inbetween -1000 and +1000mm. If I´ll go further the axis faults and tells me Excessive position error.

Ive got value in positionfeedback1 and 2. Positionfeedback2 is the same as actual position but with "decimals" So if actual position is 950.20 the feedback2 tag says 95020.

Does anyone here experience the same issue? Any thoughts please feel free to reply!

thanks in advance. /A

 

 

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Error while installing RSLogix5000 emulator v21.00

December 12, 2017, 6:44 am
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Hello

Anyone give me the suggestion for this issue. when I install the RSLogix 5000 emulator(V21.00) while RSI hardware installer, A severe error occurred while using our EDS services component.

 

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SLC5/03 RSLogix 500 Rack config error

December 12, 2017, 6:52 am
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Hello all,

I am troubleshooting a system that has a fault. The fault says "the rack configuration specified in the user program is detected as being incorrect". Its a 13 slot rack, all my cards match with the I/O configuration. I re-seated all the cards to make sure they had solid connection, also tried to start a new program and had the processor read in the cards in the rack which came up with message "invalid rack configuration". The system has been running fine except they had a rat get into the panel and it smells like rat pee all over the PLC. They have had a couple card faults to which I changed the card and it goes back to working correctly but now they are having this issue. Any more troubleshooting techniques I could try? Or possibly a fried rack? Any suggestions would be helpful. 

Thanks,

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bit shift register

December 12, 2017, 11:55 am
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Hello everyone.

I m new on site.

I need to an example program (done and running properly) that bit shift register.

I will design a bottle filling machine.

I dont know how to use these logics.  hardware dosent matter.

 

thanks for your interest

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VMWare configuration for AB software

December 12, 2017, 11:09 pm
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Hello Friends
 
I have gotten a new laptop: Lenovo ThinkPad P51, Windows 10 Pro 64, 16RAM, i7-7820HQ 1TB HDD 5400RPM,  NVIDIA Quadro M1000M 4GB GDDR5
 
I have installed VMware Workstation v14 and created a VM with Win 7 Pro 64, RSLogix v20, Studio 24, 29, FTView 9, CCW 10 (VM Settings: 8RAM, #processors 1, cores procesor 4, 100HDD, Network bridged)
Also, I have created a VM with Win XP SP3 32 bit, RsLogix 16-20, FTView 6.1, RSLogix 500 (VM Settings: 4RAM, #processors 1, cores procesor 4, 40HDD, Network bridged)
VM with XP has not problem, it performs very well, but VM with Win7 performs very slow, I know that this software needs more capacity but sometimes is too slow or sometimes freezes the process in some step.
Also, I have tried another VM with XP and software like Mitsubishi, Omron, Panasonic and it performs OK.
 
I have tried different configurations, but same problem happens with Win 7.

Which configuration do you recommend? or what can I do to get a better performance?

Thanks in advance
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Programming

December 13, 2017, 4:06 am
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I have two air compressors where I want hooked up to the PLC and I want the first air compressor to come on with the least amount of hours if the first air compressor does not hold enough pressure to run the procedure I want the second air compressor to turn on how do I make this work by the total hours during the beginning of the shift

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2d Barcode Scanner communications question

December 14, 2017, 5:07 am
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Hello all, 

            I have been tasked with adding a 2d barcode scanner on one of our machines.  It has an Allen Bradley Micrologix PLC and a panelview plus 600 HMI panel.  I have one ethernet ip port available on the plc and I have one USB port available on the HMI panel.  My question is, can you use a USB scanner through the HMI panel to communicate to the plc ladder logic?  Would it be better to try and find an ethernet style scanner?  I have little experience with all of this as well...

Any help would be greatly appreciated! 

 

Thanks,

                  Rob

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Interfacing with Blood Gas Analyzer (RAPIDPoint 500)

December 14, 2017, 9:00 am
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My client is a pharmaceutical company and they want to interface their Blood Gas Analyzer (which is a RAPIDPoint 500) to a Controllogix PLC via EtherNet. I have attached a Spec that I found, which gives the initial information you would need to do this. It says that the BGA can transmit data in ASCII. However, it doesn't list what bits I need to send to the device in order for it to send the PLC the data. I've tried contacting Siemen's (who makes the BGA) and they were useless. I also tried searching the RA knowledgebase. 

Does anyone have any insight on how to communicate with a device in this way?

Thank you


Tyler

RP500_LIS_5_20_13_-_Rev_C_.pdf

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SLC5/05 1747-L553 intermittent loss of communication

December 15, 2017, 11:16 am
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SLC5/05 1747-L553 intermittent loss of communication

Has anyone ever experience an intermittent loss of communication between the SLC5/05 1747-L553 PLC and a computer which can only be recovered by cycling power on the PLC?

We are experiencing a communication loss sometimes once a week, sometimes more...and it is occurring on three different PLCs.

A PLC specialist or contractor claims that the loss of communication can be caused by the PLC firmware.

The specs from the PLC are as follows:

PLC model: SLC5/05 1747-L553

 

CAT: 1747-L553 SER C PROC REV 5

 

OS# 1747-OS501 SER C FRN 9

 

Has anyone experienced this type of loss, and if so what would be the best course of action to take?

Is there a sniffer that can be employed to determine if the comms loss is caused by the PLC, by the computer, or by something else.

Please advise.

Thanks!

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