11/18/2022 3:01 PM | |
Joined: 11/11/2020 Last visit: 3/2/2024 Posts: 15 Rating: (0) |
Hi, I have s7-400 plc & I am trying to communicate in TCP/IP with X-COM SYSTEM . I have 4 Process messages to receive, each having a different message ID of 6 bytes & lengths 300,10,27 & 27. Apart from this we also receive one Live message of ID 6 Bytes & Length 30 in every 30 sec. Now when I am using AG_LRCV block. the process messages are getting jumbled with Live messages even with a maximum byte of 414+30=444 bytes.. defined in RECV Parameter. Please help me to get rid of this problem & provide the solution how exactly i could retrieve each message. warm regards ------------------------------------------------------------------------------------------ |
Last edited by: Jen_Moderator at: 11/21/2022 05:28:15New subject after splitting. |
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12/6/2022 11:23 AM | |
Joined: 11/11/2020 Last visit: 3/2/2024 Posts: 15 Rating: (0) |
H Ivan, Thnak you for your reply. Please find my answeres with snapshots attached. I see probably some mistake in ID description, ID is specific connection value in my opinion not definition of interface, or it is HW_ID parameter? HW_ID Parameter, pic attached On other side, your P#DB2001.DBX0.0 is not fully defined, you need set it due your data type set so if you have there BYTE data type, you need set like this P#DB2001.DBX0.0 BYTE 100 and click ENTER key, here 100 defines max number of elements of buffer/structure. Ok, Itried to follow the following suggestion provided in the below mentioned support link. also thought that in ADHOC mode (LEN=0) i need not put any fixed bytes. https://support.industry.siemens.com/cs/ww/en/view/79993470 Ok, next. You're working in TIA portal? I ask because I see your topic name with AG_LRCV and also S7-400 system, It is a STEP7 ,V5.6 so also internal ETH port of CPU you are use? No communication via CP? We use CP card, pic attached. Attach pls some ZIP file with screenshots (JPG) from your code, blocks, connection cfg. Attached. |
Last edited by: krish21 at: 12/06/2022 11:26:35Last edited by: krish21 at: 12/06/2022 11:27:43Last edited by: Jen_Moderator at: 12/14/2022 07:57:52Link optimized. |
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12/13/2022 3:21 PM | |
Joined: 11/11/2020 Last visit: 3/2/2024 Posts: 15 Rating: (0) |
Hi, Ivan Pls find the CP HW & SW details attached. Regards krish |
12/19/2022 12:36 PM | |
Joined: 11/11/2020 Last visit: 3/2/2024 Posts: 15 Rating: (0) |
Hi Ivan, Well, I am unable to connect PLC with Hercules SW. it was showing an error Pls find the attached Program for send & receive I am using. The outcome of the Program is as follows: 1. I am able to send the data but with a delay (0.1-10 mins) 2. I am able to receive the data with a delay (0.1-10 mins). 3. I am unable to receive the 444-bytes message. this message is a mixture of CHAR & INT types, However, other received messages are only CHAR type. AttachmentPROG_2_1.zip (421 Downloads) |
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