Very usefull information! Thank you for sharing! In my particular case I need to have two controllers on one side of the coupler and one controller in the other side! My doubt is since I have two controller on one side and the coupler I believe can only be assigned to one controller on each side how could my second controller send and receive data from the oposite side controller?
Please, i got instable signale in the receive signal, x2, how i can resolve, i use blkmov instruction from db to share periphery define in the trasfer mapping of the pnp coupler, please help me
I do not recommend using MOVE instruction to MOVE data directly to transfer area. Rather than that we create a Tag based on a UDT which then gets nicely mapped to the transfer area. Of course if you want to move some data into the TrayTag or it's elements MOVE instruction would be a correct way of doing so.
@@AutomationStation If I keep monitoring the ouptut area (plc side) with a trace, the output goes to 0 logi sometimes, even if i detach the profinet cable from plc to X1 port. I cant explain that!
@@cosimo9922 The output area of your PLC is in no way affected by the PN/PN coupler itself... Have you tried logging a support request for this with Siemens? They should be able to maybe go into a bit more detail and offer more help then we can here in the comments. You can log a ticket with them here: support.industry.siemens.com/cs/my/srm?lc=en-ww#createRequest
If either side loses it's ethernet communication to the coupler does the inputs go to zero like hardware inputs? Or do they remain the same value as just before communications loss?
Thanks for the explanation. The version I am using looks somewhat different in that now version 3.0 of the PN Coupler does not seem to have a transfer map configuration and the ports are configured separately, but still similar enough to be useful. With that said, one thing I have not been able to figure out is the RD_READ_STO and RD_WRITE_STO. Reading the manual leads me to believe I need to write actual logic to use this type of record transfer, but I have no idea what functions to call or where to even get started. The manual just says, "IO controller (sender) issues a write request to the PN/PN Coupler...". Do you have an example of the RD_WRITE_STO / RD_READ_STO feature?
Thanks for your video! I have a question: i have a control panel with this pn/pn coupler where the left side has two controller and the right side should be monitored from a Scada. The problem is: I don’t have tia project and I need to change IP address of the right side of coupler for monitoring from Scada, how can I change it? What configuration tool do you recommend for this purpose? Thanks in advance for your help...
You sure that's actually the case? If the right side should be monitored from a SCADA - does your SCADA system actually act as a PROFINET IO Controller? In terms of changing the IP address - tools like PRONETA can do that but normally the IP address is loaded by the IO Controller so manual changes tend to be temporary in nature and overwritten by the Controller itself.
I found this video as I tried to find a solution to my problem whitch is the very same ay at 13:17: the IN address range is miscalculated 3000...3100 is 101 bytes, not 100.. at the OUT part it calculates correctly (2000...2099 is 100 bytes indeed) Any idea why is it beaves like that and is there any solution?
Sure - Maybe I should have mentioned it in the video. The x2 size is 1 byte bigger than x1 to fit the data status. If you don't need it you can disable data status in the properties of the coupler.
Thanks for video, its great Is it enough to just download PLC-1 with that configuration, I mean PLC-2 was comissioned before and not possible to download again PLC-2
Thanks! Unless your PLC-2 is already configured to send data to the coupler I'm afraid it will need to be reconfigured. Otherwise the coupler simply won't receive the data from PLC-2 side. If they are in different projects you need to export the GSD file from the project with the coupler for side 2 and import it in the other project. If you can't do anything with PLC-2 it might still be possible to send or get some data from it using PUT/GET if this was enabled in the configuration. I wouldn't normally recommend using PUT/GET with S7-1200/S7-1500 generation CPUs, but you might want to look into it.
I did not know how to assign the coupler to multiple IO controllers, thanks for the video!
Glad I could help!
Thank you ,please keep going to record this kind of videos
Very usefull information! Thank you for sharing!
In my particular case I need to have two controllers on one side of the coupler and one controller in the other side!
My doubt is since I have two controller on one side and the coupler I believe can only be assigned to one controller on each side how could my second controller send and receive data from the oposite side controller?
Thanks for this video.
You said that you do not recommend using the MOVE instruction. Please tell me how you can fill TrayTag data in your example?
Please, i got instable signale in the receive signal, x2, how i can resolve, i use blkmov instruction from db to share periphery define in the trasfer mapping of the pnp coupler, please help me
I do not recommend using MOVE instruction to MOVE data directly to transfer area. Rather than that we create a Tag based on a UDT which then gets nicely mapped to the transfer area. Of course if you want to move some data into the TrayTag or it's elements MOVE instruction would be a correct way of doing so.
@@cosimo9922 Not sure if I understand. What do you mean by instable signal?
@@AutomationStation If I keep monitoring the ouptut area (plc side) with a trace, the output goes to 0 logi sometimes, even if i detach the profinet cable from plc to X1 port. I cant explain that!
@@cosimo9922 The output area of your PLC is in no way affected by the PN/PN coupler itself... Have you tried logging a support request for this with Siemens? They should be able to maybe go into a bit more detail and offer more help then we can here in the comments. You can log a ticket with them here:
support.industry.siemens.com/cs/my/srm?lc=en-ww#createRequest
Great explanations. Thank you very much. After download the HW configuration, do you need to do any communication function in PLC program?
Nope, it just maps it across and exchanges cyclically
Very good and funny videos bring a great sense of entertainment!
If either side loses it's ethernet communication to the coupler does the inputs go to zero like hardware inputs? Or do they remain the same value as just before communications loss?
Thanks for the explantion, can you please make a video regarding PN/DP Coupler (IE/PB Link PN IO)?
Thanks for the explanation. The version I am using looks somewhat different in that now version 3.0 of the PN Coupler does not seem to have a transfer map configuration and the ports are configured separately, but still similar enough to be useful. With that said, one thing I have not been able to figure out is the RD_READ_STO and RD_WRITE_STO. Reading the manual leads me to believe I need to write actual logic to use this type of record transfer, but I have no idea what functions to call or where to even get started. The manual just says, "IO controller (sender) issues a write request to the PN/PN Coupler...".
Do you have an example of the RD_WRITE_STO / RD_READ_STO feature?
Thanks for your video!
I have a question: i have a control panel with this pn/pn coupler where the left side has two controller and the right side should be monitored from a Scada.
The problem is: I don’t have tia project and I need to change IP address of the right side of coupler for monitoring from Scada, how can I change it? What configuration tool do you recommend for this purpose?
Thanks in advance for your help...
You sure that's actually the case? If the right side should be monitored from a SCADA - does your SCADA system actually act as a PROFINET IO Controller?
In terms of changing the IP address - tools like PRONETA can do that but normally the IP address is loaded by the IO Controller so manual changes tend to be temporary in nature and overwritten by the Controller itself.
@@AutomationStation thank you so much for your advices. I’ll check engineering.
I found this video as I tried to find a solution to my problem whitch is the very same ay at 13:17: the IN address range is miscalculated 3000...3100 is 101 bytes, not 100.. at the OUT part it calculates correctly (2000...2099 is 100 bytes indeed)
Any idea why is it beaves like that and is there any solution?
Sure - Maybe I should have mentioned it in the video. The x2 size is 1 byte bigger than x1 to fit the data status. If you don't need it you can disable data status in the properties of the coupler.
@@AutomationStation thank you, that really helped!
we have 2 PN/PN couplers due to too many signals, can loop these 2 PN/PN coupler connection? then one cable to another PLC
good in theory but did it actually work..I guess we will never know.
very useful thanks for making this video
Thanks for video, its great
Is it enough to just download PLC-1 with that configuration, I mean PLC-2 was comissioned before and not possible to download again PLC-2
Thanks! Unless your PLC-2 is already configured to send data to the coupler I'm afraid it will need to be reconfigured. Otherwise the coupler simply won't receive the data from PLC-2 side. If they are in different projects you need to export the GSD file from the project with the coupler for side 2 and import it in the other project.
If you can't do anything with PLC-2 it might still be possible to send or get some data from it using PUT/GET if this was enabled in the configuration. I wouldn't normally recommend using PUT/GET with S7-1200/S7-1500 generation CPUs, but you might want to look into it.
@@AutomationStation thanks for fast replying, i see plc-2 has to be configured
can you show the communication b/w TIA and Simatic Manager using PN/PN coupler
THANK YOU
Thanks
thank you