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MV420 with siemens S-7 Cpu314 C-2 PN/DP

Created by: fawads at: 11/20/2014 11:56 AM (6 Replies)

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11/20/2014 11:56 AM	Rate (0)
fawads Regular Member Joined: 10/28/2014 Last visit: 1/18/2024 Posts: 20 Rating: (0)	hello experts I am trying to interface siemens MV420 Codereading system with Siemens S7 CPU 314 C2 PN/DP. For this purpose I am using the same project file that comes with the Camera , MV4x0 PROFINET_sample_project_v1_0. I have configured the profinet I/o for the camera and currently there is no error on camera. I have change the PLC version as per my plc and also add GSD file for the MV420 series. But couldnt able to communicate camera with PLC . I have some confusion : 1) MV 440 comes with IN_OP and RDY status bit which is being configured in the sample project , BUT MV 420 has only one RDY bit . What changes do we need to make in the sample project . 2) TRG bit is mentioned as input in the data sheet , as per my interpretation this is an input for camera when set will trigger camera to read the code . Why in the sample program this is being set as input for PLC ? 3) Is it necessary to used RS232 for communication or it can be done with Profinet I/o also ? Can anyone help me in this regard Regards Fawad

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11/20/2014 3:51 PM	Rate (0)
Owei Gold Expert Joined: 10/1/2013 Last visit: 5/8/2024 Posts: 605 Rating: (71)	Hi fawads, at first we need to know some more things: -Which programming software are you using (STEP 7 V5.5, STEP 7 TIA V13, ...)? -Firmware of your MV? -I don't know that sample project. Is it using FB45, FB79 or FB101(Ident-profile) to control the MV? Clearing your confusions: 1) Both MV440 and MV420 have those RDY and IN_OPT bits. 2) I guess theTRG bit is set as input for PLC to be controlled by digital inputs (e.g. light gates)and then will be forwarded to the cameras TRG input. 3) For sure you cancommunicate byPROFINET I/O. I guess that's what the sample project is meant to do. Connect your PLC via Ethernetto the MV.
	Last edited by: Owei at: 20.11.2014 17:23
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11/20/2014 5:46 PM	Rate (0)
eisenpferdreiter Posts: 1058 Rating: (93)	fawads hello experts I am trying to interface siemens MV420 Codereading system with Siemens S7 CPU 314 C2 PN/DP. For this purpose I am using the same project file that comes with the Camera , MV4x0 PROFINET_sample_project_v1_0. I have configured the profinet I/o for the camera and currently there is no error on camera. I have change the PLC version as per my plc and also add GSD file for the MV420 series. But couldnt able to communicate camera with PLC . I have some confusion : 1) MV 440 comes with IN_OP and RDY status bit which is being configured in the sample project , BUT MV 420 has only one RDY bit . What changes do we need to make in the sample project . 2) TRG bit is mentioned as input in the data sheet , as per my interpretation this is an input for camera when set will trigger camera to read the code . Why in the sample program this is being set as input for PLC ? 3) Is it necessary to used RS232 for communication or it can be done with Profinet I/o also ? Can anyone help me in this regard Regards Fawad Hello fawads, look here: SIMATIC MV420 / SIMATIC MV440 V6.5 you will find Network ans system interfacing in chapter 4 process interfacing via an automation system (PLC, PC) in chapter 9 regards
eisenpferdreiter Posts: 1058 Rating: (93)
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11/20/2014 9:07 PM	Rate (0)
fawads Regular Member Joined: 10/28/2014 Last visit: 1/18/2024 Posts: 20 Rating: (0)	The project uses FB79 block and I am using TIA portal v12 While using camera with profinet interface do we need to use these IN_OP and RDY bits ? or these are to be used when communication being done with RS232 ? I followed the document available on siemen web Link the documents state at pg22 : IN_OP and RDY bits to be true for camera to be able to communicate For MV 420 do we need to configure these bits if yes than how? as I check the manual and it states that MV 420 has different default value for the bit . (attached pic ) Attachment Capturesss.jpg (676 Downloads)
	Last edited by: Min_Moderator at: 21.11.2014 09:14 Edit link Last edited by: fawads at: 11/20/2014 9:11 PM
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11/21/2014 12:25 PM	Rate (0)
Owei Gold Expert Joined: 10/1/2013 Last visit: 5/8/2024 Posts: 605 Rating: (71)	You don't need to set those bits (RDY; IN_OP). Those are just status bits the PLC receives from the MV via FC79.

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11/25/2014 11:52 AM	Rate (0)
fawads Regular Member Joined: 10/28/2014 Last visit: 1/18/2024 Posts: 20 Rating: (0)	Hello , I have tried connecting MV420 SR with the manual you provided . Currently the MV420 is in run mode with no error as indicated by LED's on MV 420 . How ever I have problem in getting data from camera . I have following confusions 1) I have configured barcode reader with Profinet(FB79) with Connections : Trigger source , string , result Control all being set to Profinet I/O . My question is do I still need to connect these status bits RDY , IN_OP to PLC . I tried connecting this with the PLC but both the bits remains to False (using P type input) Document suggest for normal communication this should be set to true by barcode reader . What can be the problem?. 2) What is Transferring optional License in the manual ? Is it necessary to install this to get data from the reader . 3) I still couldnt figure out how can data be transferred by bar code reader to plc using FB79 function block 4) when i switch my reader to run mode , instead of showing the picture it displays "display condition is not fullfilled" The reader have firmware version V05.01.00_02 (TG+) where as GSD file is of firmware version 4.0 will this effect the communication Would appreciate your help in this regards . Mostly manuals are provided with MV 440 documentation , I have tried followed the instructions but its not working . Regards Fawad
	Last edited by: fawads at: 11/25/2014 1:10 PM Last edited by: fawads at: 11/25/2014 1:03 PM
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11/26/2014 1:22 PM	Rate (0)
Owei Gold Expert Joined: 10/1/2013 Last visit: 5/8/2024 Posts: 605 Rating: (71)	Hi, 1) Do you mean theoptions IN_OP and RDYat the WEB interface under"Connections" -> "Digital I/O"? You can ignore Digital I/O. You can control everythingvia PLC. Those status bits are connected to the PLC after you drag&drop your MV GSDML into your project. Therefore you only need to connect your MV via Ethernet to your PLC. You can find the I/O address of your control byte (containing IN_OP and RDY) at the options of your MV device in the HW config. Note: you can not set the IN_OP and RDY bit. These are outputs of the camera. You can find the values of these bits inside the control byte (e.g "I 0.0" for IN_OP and "I 0.2" for RDY). 2) You don't need optional licenses for DMC or BAR code reading. 3) After setting the MV to run (by choosing a MV program at the WEB interfaceat"processing" and pressing "Start") you can trigger a captureand get the result by the PLC: -fill in the inputs needed at FB79 -set "COMMAND" to 16#0081 trigger and reading result -the DB are connected to "RECV" now shows the result of the capturing ... 4) "Display condition is not fulfilled" appears if there has not been a trigger for capturing yet. Note: You need the right GSD for your FW version. In your case you can download the GSD for FW5 here: http://support.automation.siemens.com/WW/view/en/68188494 The explanations in the manual mentioned by eisenpferdreiter are really accurate. Attentively read them. Another solution is to switch to S7-1200 or S7-1500 and using FB101 (Ident profile) which is way easier to handle (http://support.automation.siemens.com/WW/view/en/90063944).

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