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Emil

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Emil last won the day on November 27 2016

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  1. Hi to all! M91, as it is, cannot be connected direct ot Ethernet. The same is for V120. You can try ot use any serial to Ethernet converter, but my feeling is thhat it will be more expensive than the PLC itself. Important note - now Jazz 2 has Ethernet adds-on module MJ20-ET1. With it, you can "see" the controller via U90Ladder and other Unitronics software tools or to communicate Modbus IP.
  2. Hi Damian and other participants to this discussion, First - I want ot thank Damian and Joe for their very useful notes and advices. About "MI" limitation in function HSC (Reload) - in some Vision models this is hardware limitation, which cannot be ommited. In some newer models, like V130/350 "TR" ones - you alrady can select both for the counter and the target MI, ML or DW.
  3. Please don't thhink about SET and REST of SB82 as ordinary bit operations. In fact, this is the "switch" to activate the function as "Long" after the bit. That's why, in this specific case, SET and RESET of the same bit (SB82) is fully legal. Even more - in some case you can make twice SET of SB82 in the same net - without RESET at all. It looks quite not logical, but - again - SET and RESET of SB82 in fact is a way to give the controller command to execute the function. In any case SB82 remains at "0". I agree this way of handle special functions is not the most intuitive! But the way U90Lad
  4. I'm surprised why this topic seems so complicated - even for Joe Touser! There is standard solution: one needs to RESETSB82 and then to store "Long" register (as bitmap) to another "Long" register (two sequental MI). The result will be in decimal format, where the first 4 low significant numbers will be stored in the first MI and the rest - in the second. Please take a look in the standard example (U90Ladder > Help menu > Sample U90 Projects... > Basic Ladder operation > Long Integer... There this way is shown - both in Ladder and in HMI. If something still reminds unclear, p
  5. Hi, Attached is a zsip file, which includes help doc, VisiLogic and VB examples. I hope it will help. DT VB example.zip
  6. You can connect GSM modem. We recommend our GSM kit, which includes Enfora modem and all accessories around ot make connection fast and easy. Anyway, we support another few brands of GSM modems. Having GSM modem, you can easilly program it both to call preprogrammed numbers and to send SMS. Som of our users alreqady did similar alarm systems. They are programmed to call number for few seconds. The person who receives the call sends back SMS, let's say with word "STATUS" (any other mesage can be programmed) and receive SMS with variables, which state the problem. If there is no "Status" SMS
  7. The easiest way is to set in Hardware configuration I0 as high Speed counter. In the second line, you can define operand (MI) for frequency measurement. See relevant help topic for details. In selected MI you will receive the number of pulses per second - Hz. Then, you need to multiply the this result by 60 to receive the number of pulses per minute. Then, you need to divide this result by the number of pulses your plate gives per revoluiton. The final reult will be in RPM (Revolutions per minute). What is the expected range of results? How many pulses gives your disk per revolution? What
  8. Hi Alex,

    I'm not sure if I didn't miss this message.

    You can contact me at support@unitronics.com

  9. Printer example - as promised... Ethernet printer.vlp
  10. Hi Friends, The theme is seems to me very interesting! About "normal" office printers - they usally have USB interface and ... Windows driver. In such case it's practically impossible to output print from current controllers. More and more popular are network printers. They have their own drivers, but also their own protocols (ASCII based) to drive them. I'll post soon working example to output print from Vision OPLC via Ethernet to such printer.
  11. In fact the things are much simpler with Jazz and Modbus. As this protocol (Modbus RTU) is built in Jazz, you don't need ot learn its structure to be able to communicate. As you describe the application, you need ot set Jazz as Modbus Slave and then to check Jazz Modbus Slave table topic to find the addresses you need ot set in your third party device/SCADA to read these addreses. You can find relevant Help topics in U90Ladder > Help > Communication > Modbus (see attachment). Good luck!
  12. Hi, RS485 has two leads by default - Tx/Rx+ (A) and Tx/Rx- (B ). In case the port is not isolated, you need ot provide the same 0V refference to all the nodes in the network as condition for proper operation. I guess the GND there is in fact 0V of power supply (maybe internal DC power supply) of your instrument. You need ot connect it to 0V of 24V of the power supply of Jazz.
  13. Hi Bogdan, Joe, Please take a look at VisiLogic examples (VisiLogic > Help menu > Examples > Project examples > PID). I have the strong feeling you will find something very, very close to what Bogdan needs.
  14. Hi Bostjan, This is the way the function works now. I don't want to define it as "wrong". I'm sure there wil lbe users, which will prefer this order. Anyway, I'm takeing your idea in consideration. I'll see with our R&D what can be done to improve the funcikton in this matter. BTW - "hundreds of trends" within the same file?! This is really not good idea. Taking in mind, that you can keep up to 320 indepemdent files in one SD card, the right way is to keep different portions of data in different files! Option "append" is designed to prevent data lost in case, let's say of accident power
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