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Bsend Brecieve from OPC client

Created by: SmashManfis87 at: 9/7/2017 8:21 PM (4 Replies)

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9/7/2017 8:21 PM	Rate (0)
SmashManfis87 Advanced Member Joined: 5/9/2016 Last visit: 2/21/2025 Posts: 29 Rating: (0)	Dear colleagues, I want to receive 64kB from SQL -> OPC client -> BSEND64000,1,STRING0.30,2000 I configured the BRECIEVE for a WinLC. I have configured a WinLC S7 connection to OPC server (opc server is active partner and 1.establish permanent conn and 2.always establish - tried both settings). When I make a cold restart and send to the address specified: Address: BSEND64000,1,STRING0.30,20 Values: {text1\|text2\|.....x20} (20 strings) They are accepted by the PLC successfully but once; second attempt fails. Until I cold restart the PLC. What may be the problem?
	Last edited by: SmashManfis87 at: 9/7/2017 8:24:55 PM
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9/7/2017 8:46 PM	Rate (0)
SmashManfis87 Advanced Member Joined: 5/9/2016 Last visit: 2/21/2025 Posts: 29 Rating: (0)	_
	Last edited by: SmashManfis87 at: 9/7/2017 8:55:59 PM Last edited by: SmashManfis87 at: 9/7/2017 8:56:22 PM Last edited by: SmashManfis87 at: 9/7/2017 9:22:07 PM
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9/7/2017 9:12 PM	Rate (0)
SmashManfis87 Advanced Member Joined: 5/9/2016 Last visit: 2/21/2025 Posts: 29 Rating: (0)	Client sends Address: 'S7:[S7 connection_4]BSEND64000,1,STRING0.30,2', Value: '{xxx\|xxx2}', Receiving Datablock: DATA_BLOCK "Receive" TITLE = VERSION : 0.1 STRUCT Str : ARRAY [1 .. 2000 ] OF //Temporary placeholder variable STRING [30 ]; END_STRUCT ; END_DATA_BLOCK // = 64000 bytes --------------- FB ---------------- OPN #Rec_DB // Load number of receive mailbox L DBNO T #TMP_DB_NR // save value in pointer OPN DB [#TMP_DB_NR] // Open Recieve Mailbox L DBLG // Get length of DB. T #TMP_Rec_Len // and save in TMP_Rec_Len paramete =64000 CALL #BRECIVE EN_R :="Alwas_1" // Enable recive data ID :=#Par.ID // The connection number "net_Pro" = 6 R_ID :=#Par.R_ID // = 1 NDR :=#RCV_NDR // =1 if new data received ERROR :=#TMP_RCV_ERROR // Error information STATUS:=#RCV_STATUS // Status information RD_1 :=#TMP_Rec_Any // Load receive mailbox pointer LEN :=#TMP_Rec_Len // Received data length 22:19:22,105\|19A8 [error] s7_get_bsend_cnf -2, (reason=0x3 class=0x84 code=0x2) 160, wrong state of remote BRCV block: check datalength of BRCV block, CPU-STOP-RUN-switch, parameter EN_R and time cycle of remote BRCV block. Whats wrong with this data?
	Last edited by: SmashManfis87 at: 9/7/2017 9:14:50 PM Last edited by: SmashManfis87 at: 9/7/2017 9:17:34 PM Last edited by: SmashManfis87 at: 9/7/2017 9:21:31 PM
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9/7/2017 9:46 PM	Rate (0)
SmashManfis87 Advanced Member Joined: 5/9/2016 Last visit: 2/21/2025 Posts: 29 Rating: (0)	solved the problem by removing the braces { } ... no braces around the values - works normal. Is there a way to initiate BSEND again without Cold restart if problem is detected? Please, help. And another problem - first char is not correctly sent (first char in the string is missing) Why? where is it ? :)
	Last edited by: SmashManfis87 at: 9/8/2017 8:50:48 AM Last edited by: Jen_Moderator at: 9/19/2017 2:42:24 PM Crossed out new question, because it is published in a new thread.
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9/19/2017 2:44 PM	Rate (0)
Jen_Moderator Diamond Member Joined: 6/19/2017 Last visit: 9/6/2024 Posts: 8175 Rating: (174)	New question published by SmashManfis87 is split to a separate thread with the subject Is there a way to initiate BSEND again without Cold restart if problem is detected?. Best regards Jen_Moderator

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