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keerthi chandra

Please help me in communicating with premium PL7

9 posts in this topic

Hi everybody .... this is keerthi I need an immediate help from you people Brief Description about my project :- I am using Modicon premium Schneider PLC , which is having TSXP57103 communication module in this module it as 2 ports ( TER and AUX) and no other means of communication links other than this 2 ports. I used TER port to communicate with PC by using PL7 (version 4.3) software through UNi-TELWAY driver which is configured such as :- UNITELWAY 's configuration-> 1)COM port:- COM1 2)uniteway slave address- BASE=1, number=3 3)baud rate=9600 4)self adaption-use(ticked) data bits=8 parity=odd stop bits=1 5) RTS/CTS delay (un ticked) 6)Link type --- UNITEWAY 7)other NUMPLC (un ticked) link timeout= -1 RX/TX delay= -1 CABLE USED: ( Between PLC and PC) TSXPCX1031 having a switch which can be position to either 0 (TER Multi) , 1 (other Multi ) , 2 (TER Direct) or 3 ( other Direct). In my project i am using switch position 0( TER Multi) One end of this cable goes to PLC's TER port and other end to PC's physical COM port (COM1) which is having default parameter settings RESULT:- I am sucessfull in establishing the communication with PL7 software PROBLEM Now in my project there is a change in the requirment Requirment is , i should use VIRTUAL COM port instead of Physical COM port ( ie.. i want to change COM1 to some other COM number) ,this VIRTUAL COM ports are created using SERIAL DEVICE SERVER(SDS) ABOUT SERIAL DEVICE SERVER(SDS) :- This SDS which i am using is MOXA NPORT 5410. NPort 5410 provides a convenient and transparent way to connect serial devices to an Ethernet,it can transparently transmit data bi-directionally between the serial and Ethernet interfaces. one end of this SDS is having RS232 and other end is ethernet link which we can connect to PC In RS232 end we can connect PLC( it is a serial device) through TSXPCX1031 cable. PROBLEM is like this:- Once i create Virtual COM port using SDS and connect PLC to PC using SDS and TSXPCX1031 cable and RUN the PL7 software ( with corresponding configuration changes in UNITEWAY driver , like COM port setting to be matched with VIRTUAL COM and also VIRTUAL COM port parrameter setting are made same as that of physical COM port's) once i give connect command in PL7 software , software waits for some time and give the message "NOT POSSIBLE TO ESTALISH THE PHYSICAL LINK WITH PLC ADDRESS SYS VIA DRIVER UNTLW01." My experiments to solve this problem: i changed the communication parameter setting in SDS and Unitelway drive (all possiblities) and also i changed cable switch position ( all possiblities) , but still failure in communication with PLC. even for that matter when i changed the physical com port other than COM1 and connect directly with proper communication parameter set ,then also i could'nd communicate SO please help me in solving this problem, please and if possible let me know whether i can communicate with this PLC module(TSXP57103) using MODBUS protocal please guide me if possible with manuals having protocol explained in detail THANKING YOU people in advance

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To the best of my knowledge, it can't be done. You can't use Unitelway with anything other than a real live serial port. Even USB to serial adapters cannot be used with the Unitelway cables.

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Then please let me know how can i go about this communication using SDS... please reply soon

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The only SDS I have ever heard of is a Honeywell networked I/O system. And there's no way to talk to a PLC via this. You need a serial port for your TSXPCX1031 cable. If you can't use that, try the TSXPCX3030 which is a USB to Unitelway cable.

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Keerthi My guess about your project requirement is that you have to connect the PLC to the PC via only the ethernet (TCP/IP?). In this case you can use serial to ethernet converters (Schneider or any other make ). These will be more convinient in connecting to the PLC, altough they do have cost implications!

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PLease let me know whether i can communicate using PCMCIA communication card? can i connect this card to TSXP57103 module and can i use modbus protocol to read /write data to/from PLC ..... please help me please give me the documents

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Your methods to communicate with the Premium CPU are this: Serially with TSXPCU1031 cable or others USB with TSXPCX3030 TSXETYxxx Ethernet Module to Ethernet connection on PC There are no other methods, and you cannot just put a PCMCIA card in the CPU. There are only certain cards which can be used, all sold by Schneider. I still say your best bet is the TSXPCX3030 USB cable. But that's just my opinion based on working with these PLCs years ago. You can always keep asking and hope for a different answer.

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As Crossbow has said....those are the methods you can use for communicating to a PLC. I still think ethernet to serial converters are the best bet! Please see the uploaded file for details, uploaded from the telemecanique website. I hope this solves your problem! transparentreadyethernetgatewaysproductdatasheets_referencespresentationcharacteristics_en3.0_48404.pdf

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Just a question here. Under your unitelway driver configuration, there is a virtual com port tick box. I have used this to connect to XBT's with usb to serial convertors. Cant this maybe be used to solve his problem? Then again Im not sure you can have two unitelway drivers running at the same time......maybe. I'll do some test later tonight Edited by cHud

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