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Everything posted by slcman
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Note that AWA in your plc means relay output, so protect your output with surge protection can expend plc relay life but surge can't blow a output (like for FET or transistor). You also can put surge protection on plc line only. But as your says, you got the issue when poer cycle, not when output goes on with inductive load. Did you found the problem?
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It could be the plc itself but first I suggest you to do few test: 1- If you are using memory module, disable load Eeprom memory (S:1/10 & S:1/11 set to 0) 2- Try to cycle power without UPS, connect your plc directly to line. 3- Remove all expension IO and create a dummy program without any ladder, download it and try to cycle power. 4- Mesure voltage at power terminal, if volatge is low it could create problem (tech note 17192 - On Power Up the only Illuminated led on the Micrologix is a Solid Red Fault Led Programming software communications can not be established http://rockwellautomation.custhelp.com/app/answers/detail/a_id/17192) If all these tests fail, I suggest plc replacement. good luck
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Sorry for repeated message, need to read my new tablet manual!
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Are you able to go online, if yes can you get the fault number? The fault led flash or it is solid? Maybe the program is not lost, you just can't clear the fault. If you want you can go online when plc is faulted, save and send file to this forum, I'm sure we will be able to help you with the program saved in faulted state.
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Are you able to go online, if yes can you get the fault number? The fault led flash or it is solid? Maybe the program is not lost, you just can't clear the fault. If you want you can go online when plc is faulted, save and send file to this forum, I'm sure we will be able to help you with the program saved in faulted state.
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As manual says at page 4.2, I don't think you'll need 1203-SNM. The manual have a program example with SLC. http://ab.rockwellautomation.com/drives/communication/22-scm-232#/tab6 I don't recommend you to use this network to control start and stop signal on the drive. This is very slow network, more for monitor, get fault number and in some case set speed reference. Your drive control could have a lag of 1 sec!
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I'm one of the guy OkiePC mentionned with old apple cable. This cable is around 7$ and you can build 2 short cable or 1 long. For be able to plug it into the plc you'll have to grind 2 knoch with a dremel and cutting disk. I did a lot of this cable for pc and HMI. I left cable pinout and part # for MAC cable. #Cable mini DIN8.pdf
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You're right! Spend few thousand box for software and have to pay for keep it updated is crazy. RA block your knowledge base acces if you don't pay, they really need money! I also have a SUS for Siemens product, really expensive too.
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Siemens to Ethernet to Bradley
slcman replied to Conor's topic in Allen Bradley / Rockwell Automation
Here a good example from siemens's web site: http://support.automation.siemens.com/WW/llisapi.dll?func=cslib.csinfo〈=en&objid=23901499&caller=view I never try but I think it could help you. -
It's depent of witch plateform is used.I've seen press with simotion and older one with masterdrive. If simotion plateform is used in your projet, scout is the software to use for programming and go online with your projet. You can retrieve drive program by going online and select active node in scout software (if your connection is ethernet you must enter ip adresse in active node windows). I don't think you can retreive motion program from the controller, if you found a way to do it, post a update. On scout install cd you'll found few application example. One off them is a printing press code devlopped by Siemens eng, it is open source. This example may help you to create press code. Have you put 2 motor on the same shaft as dc motor drived press are or you put one motor per unit? I think one motor per unit is the best way to make it work. If your project use masterdrive, I think the software you'll need is drive monitor. You'll be able to found a copy on Siemens web site.
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I always get good result by using vmware bridged and step 7 ethernet comms. I only get problem 1time with a hudge project who contain many simotion d445, s7-300, s7-400, hmi and pc. I think the managed swith allow only one ip the the port I was connected. I had to use NAT adapter in vmware for get it to work (in this case only 1 ip is assigned). Pay attention to if pc/pg exist in your project. You must the same ip of pc/pg in your gest to be able to bridge in siemens network.
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speed calculation from encoder position
slcman replied to vitviggs's topic in Allen Bradley / Rockwell Automation
Rate refresh in HSC card is 1sec and 20msec update is requested -
First, best practice for simulate input is to use a debug file and rslogix emulate. When you create a new file, check the box Debug in the lower left corner. Debug file are not downloaded in the plc. Then assign your debug file # in RsEmulate. PLC scan input, do logic and write output but high speed counter is running in parrallele to plc logic. This is why your example doesn't work. Now bad new RSEmulate doesn't support M1400 and doesn't emulate high speed counter. Here is the feature RSEmulate doesn't support : http://rockwellautom...rsemulate%20hsc But I left a example and video on how you can to emulate hsc. Last thing I can say on your program is: is very strange to call a routine in HSC interrupt (function file) AND in main routine with JSR intruction....how you can know where the routine is called from when you are in LAD4? **The video is fast and have poor resolution because of upload restriction **Step by step with RSEmulate from Rockwell http://rockwellautomation.custhelp.com/app/answers/detail/a_id/25539/kw/rsemulate%20m1400 AB Movie.avi HSC Functionality.RSS
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Oops! RSEmulate v6 now support M1400...I have to upgrade ! http://rockwellautomation.custhelp.com/app/answers/detail/a_id/43510/kw/rsemulate%20support%20micrologix%201400
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You're right, update is 2 sec. For get a one second update you could use STI interrupt. Set interrupt at 1 sec. For your application, I can suggest you to reset the timer in STI routine (RES T4:0) and put your timer in continuous routine Lad2 by default (T4:0 1.0 5). That it, the timer sould never reach the DN bit because is reseted at 1 sec rate. Wish I help
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speed calculation from encoder position
slcman replied to vitviggs's topic in Allen Bradley / Rockwell Automation
I have a suggestion for you but for make it work, number of pulse between each photoeye reset must be egal. You can increment a counter each time photoeye have to reset your high speed counter [controller tag]. Then create a periodic task at 20msec rate. In this task use a formula to get speed. Don't forget to write last current count for offset in the next scan (use controller tag and write 0 to it at first scan). e.g. Distance = ((photoeye * pulse_per_reset) + actual count - Last_count_offset) * mm_per_pulse Speed in mm/sec = Distance * 5 //Because 5 * 20msec = 1sec Reset photoeye counter and write current count to offset tag at the end of logic -
fraction of pulse per gallon
slcman replied to waterboy's topic in Allen Bradley / Rockwell Automation
If the duty cycle is 50% (square wave 50% ON, 50% OFF) you may use rising and falling edge to increment your counter. By this way, you can double your precision. -
Is the logic is scanned? Jump and conditionnal jump don't update the value.
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I got exactly the same issue with a corporate laptop. Mcaffe virus software was blocking usb key connection to vm. Be sure your virus software don't block your connection.
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Also here's a good tutorial on this site http://www.mrplc.com/kb/index.php?page=index_v2&id=9&c=11
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The best way I found is to use VPN. Few cheap router have VPN server inclued.
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how to view values on a compact l32e
slcman replied to METSYSTEM's topic in Allen Bradley / Rockwell Automation
As Ron says, give us a screen shot will help for your online tag monitoring issue. Custom data monitor is not integreted in RS5k, you'll find similar application in ENU\Tools\Custom Data Monitor Tool on install CD. -
FTView Studio 6.00 won't compile back to v4.00 runtime
slcman replied to Graeme's topic in Allen Bradley / Rockwell Automation
see RA tech note: 46600 - Internal Error Detected error code = 37 message when trying to create a runtime I got that error once and after check your comms (I suggest to redo comms config) everything work fine -
You may check Serialport config of your plc while online thru ethernet port. As Ken say, you will be sure you're got DF1 protocol. If DF1 are used, you may check witch port of you laptop the AB USB adapter use (in system -> hardware config). I never had to work with AB USB serial adapter but with other USB adapter like 1747-UIC the COM port could change if I connect adapter in different USB port of my pc. Wish it's help
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Hi all, it is a way to see K constant value while offline. I did a upload of my customer project and now I would like to know K value from my office (offline). Thanks