2/24/2011 7:48 PM | |
Joined: 4/7/2010 Last visit: 3/19/2019 Posts: 8 Rating: (0) |
Hello! In zip whole configuration. New stations are IM151-7 CPU FO. (6ES7 151-7AB00-0AB0/V1.0) Profibus cable starts direct from CPU317-2 Profibus port. And to - 1.IM-151-7 FO is about 10 m cable - Profibus cable continues to device TP177 4 B (about 2 m cable) - Cable continues to 2.IM151-7 FO (about 4 m cable) - Cable continues to device TP177 4 (about 2 m cable) - Cable continues to 3.IM151-7 FO (about 2 m cable) - Cable continues to Optofiber terminal (about 10 m cable) - And behind the optofiber terminal there other stations in optofiber line. For example there is several IM-151-1 FO IO-extensions. Connectors are normal siemens connectors Bus terminals are ON in S7-317-2 and in the optofiber optofiber terminal. All other bus terminals are in OFF state. In old system was 1 m profibus cable from S7-317-2 profibus master port to optofiber terminal. When I try to see accessible nodes in Step 7 from new IM151-7 FO station I see station nodes, what are in optofiber line. But I don't see the new stations.When I connect to other IM151-7 I see the device address TP177 4 B. But newer the IM-151-7 FO stations. Tomorrow I do following test. I disconnect IM151-7 FO and I take it to the place where is old station connected the optofiber. And I connect IM151-7 FO to that connector. Then I see if that station can be seen in old optofiber line. If that is only way to get system working, I acquire optofiber cables and connectors. And connect new stations to that line When the system is like it's now, do I need to usesome kind of repeater. Or do I need toground the profibus cable shield? Is that IM151-7 FO:stations PG-port like ordinary profibus slave port? Best Regards KKo AttachmentWhole system.zip (45 Downloads) |
3/3/2011 8:23 AM | |
Joined: 4/7/2010 Last visit: 3/19/2019 Posts: 8 Rating: (0) |
Hello! In affix profibus configuration in slave's side. Example in one station. We have 3 stations. Two other are configured like that station in affix. Baud rate 1.5 Mbps. Adresses 37,38, and 39. Transferred words are coupled in I/O word packets Bus parameters are like configuration gave. I did not changethem. Weachieved connection to first station but not to other. (with profibus cable) I could see with step 7 accessible nodes other stationsin octofiber bus. But not the two other. ThenI made the test, that I disconnected one of my station. And bring it to theplace, where was octofiber bus. When it was connected to the octofiber bus, all leds were green and it could be seen in master logics too. We tried normal profibus cable because it was allready connected to master. I think that it's best to connect new stations to octofiber, because all other stations are in octofiber line. Now I have two devices TP177B4. One for one new station and one for two new stations. They are connected to IM151-7 FO's PG-port. Do I need to remove the tab only master on the bus in device configuration, when the octofiber is connected logics sockets. I think that IM151-7 FO'sPG and octofiber profibus slave portsshould handled like theywere sameprofibus network. Bus terminalof profibus socket inon in the the PG-port. Do I need toadd these devices (addresses 4 ja 6) to that configuration that is loaded to master logic. Best Regards KKo AttachmentSystem.zip (51 Downloads) |
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