Search found 8 matches

by mrwinter
04 Feb 2022, 15:54
Forum: Hardware
Topic: RevPi Gateway PROFINET interface to RevPi Core
Replies: 3
Views: 1482

Re: RevPi Gateway PROFINET interface to RevPi Core

Hi Nicolai,
thanks for your reply.
The PiBridge has RS485, some sniffer pins and Ethernet as far as I know. Do you know which pins are used for communication with the gateway?
Are there any schematics for the PNIO gateway?
by mrwinter
04 Feb 2022, 10:00
Forum: Hardware
Topic: RevPi Gateway PROFINET interface to RevPi Core
Replies: 3
Views: 1482

RevPi Gateway PROFINET interface to RevPi Core

Hello, can anyone tell me what the physical interface between the Gateway (PROFINET) and RevPi Core looks like? Specifically, the aim is to isolate the Ethernet side from the PLC from security purposes, i.e. get data from the PLC without exposing it to the network that the RevPi is in. Therefore, if...
by mrwinter
23 Sep 2020, 11:38
Forum: Software
Topic: 2x RevPi Core via PiBridge
Replies: 8
Views: 5619

Re: 2x RevPi Core via PiBridge

Works! sudo chmod 222 /sys/class/gpio/export /sys/class/gpio/unexport echo "41" > /sys/class/gpio/export cat /sys/class/gpio/gpio41/direction echo "out" > /sys/class/gpio/gpio41/direction echo 1 > /sys/class/gpio/gpio41/value Changes the resistance between the A/B pins from ~ 200...
by mrwinter
17 Sep 2020, 09:56
Forum: Software
Topic: 2x RevPi Core via PiBridge
Replies: 8
Views: 5619

Re: 2x RevPi Core via PiBridge

Thanks Dirk, pins it is then.

I will give it a try soon, expecting 120Ohms or high impedance on the A/B pins depending on the output settings of GPIO 41.
by mrwinter
17 Sep 2020, 09:30
Forum: Hardware
Topic: Image read-out lock bits or similar
Replies: 1
Views: 2208

Image read-out lock bits or similar

Hello, I'm no security expert, however I assume in an industrial setting (particulary a remote industrial setting) that it would be quite easy to read out the image, mount it on another machine, play with a bit and reinstall it. Is there some way to prevent the image being read out (I only known loc...
by mrwinter
16 Sep 2020, 10:58
Forum: Software
Topic: 2x RevPi Core via PiBridge
Replies: 8
Views: 5619

Re: 2x RevPi Core via PiBridge

Hello, RS485 seems to work easliy between two RevPi Cores using the PiBidge. I notice the termination resistance is connected to GPIO40 and I assume contolled by software. Given that I have disabled piControl in /etc/modules on all RevPi Cores, is there a good (recommended) way to control the termin...
by mrwinter
01 Sep 2020, 12:48
Forum: Software
Topic: 2x RevPi Core via PiBridge
Replies: 8
Views: 5619

Re: 2x RevPi Core via PiBridge

Hi lukas, thanks for the answer! I guess I now have the problem that the Ethernet connection via PiBrige works *too* well. The original idea of isolating the two networks will not work because I have a chain of Ethernet connections between the internet and the cusomer network. I guess one optoin wou...
by mrwinter
31 Aug 2020, 14:51
Forum: Software
Topic: 2x RevPi Core via PiBridge
Replies: 8
Views: 5619

2x RevPi Core via PiBridge

Hi, I suppose this is a software question. The idea is to isolate the cutomer network from the internet (LTE router), but still log data from it. On the left side, you have the Edge device, connected to the cloud via LTE, on the right side, you have a data logger, communicating with the local networ...