AXC F BK PN on PLCNext Engineer

PLCnext Engineer
1

Hi there! I’ve been studying and using the PLCnext engineer with my setup, but somehow I have not been successful in accessing my IO data from an AXC F BK PN. Here are some details on my current setup. Hardware:

AXC F 2152 (Latest firmware)
DI8/1 DO8/1
AI2 AO2 AXC F BK PN
DI8/1 DO8/2 Connection:
Development PC >> 2152 X1
2152 X2 >> BK PN X1 **Other details:
** I am able to ping the bus coupler from my development PC
The 2152 has BF-C and BF-D LEDs flashing red
The BK PN has BF LED flashing red
The BK PN & connected DI8/1 DO8/1 have D LEDs flashing green Link to project: https://drive.google.com/file/d/1mnjwcdgBq2jClxdNROGVANTVaehw65fB/view?usp=sharing Is there a step/configuration that I have missed to get my remote IOs online? Thank you!!

2

Hello Hafiz_sallim,

the PN Name is very important please make sure that the Name of the PN BK is the same in the project as on the online device.

kind regards,
Oliver

3

Thank you for the reply Oliver! I have tried that and I am still not able to read the remote IO in my program. Here are some things to further elaborate on what I have tried. I am currently using the EDU AXC F 2152 set.

                                               1. In the project, I have ensured that the physical topology matches the setup.  

                                               2. In my MainProgram, I have created external variables PDI0, PDI1 and PDO0.  

                                               3. I have added the BK PN and the connected DI8/DO8 devices in the plant.  

                                               4. In the BK PN Data List, I have linked the IO Process Data Items to the Variables created in the MainProgram.  

                                               5. I have also added MainProgram under IO Controller system & Global Variables in the Profinet settings >> Update tasks  

                                               6. I run the program on the 2152, and when flipping the switches for the DI8/DO8 connected to the BK PN, I am not able to see the corresponding changes in the program.

Are there any specific steps that I have missed? Thank you!!
- Hafiz

PLCnext Screenshots.pdf

4

Hello Hafiz, i dont see anything missing…

but the LED Status that you reported initially indicates, that there is a connection Issue between PLC and PN BK.

Please have a look at the Diagnostic Variables for PN, the /opt/plcnext/Output.log file or at the https://ip.ip.ip.ip/WBM → PN Diagnostic of your PLC. Then we should find out what is going on.

Maybe also scan the network with Netnames or PLCnext engineer and attach a screenshot of the response…
kind regards,
Oliver

5

Hi Oliver, Thank you for the reply. I entered a name under Profinet >> AXL F BK BN >> settings >> Name of Station, and that seemed to have resoloved the issue. I suspect that the default blank value, may have caused some issues when the controller is looking for the resource. Then I went over to Profinet >> Online Devices, to make sure that the Name of Station field is updated. It seems to work right now. Thanks for your help! -Hafiz

Station Name.jpg
Station Name.jpg991×636 67.5 KB

6

It looks like that there are no global variables connected to the physical I/O’s of the BK. In the screen dump, there is no PLC variable connected to any of the I/O’s. That could be the issue. Peter Paul