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uhi22 2022-10-19 19:39:30 +02:00
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@ -9,8 +9,8 @@ There are three different use cases, where this project can be helpful:
3. Building a charging unit for a car which does not support powerline communication.
## References
[i] https://www.goingelectric.de/wiki/CCS-Technische-Details/
[ii] https://openinverter.org/forum/viewtopic.php?p=37085#p37085
* [i] https://www.goingelectric.de/wiki/CCS-Technische-Details/
* [ii] https://openinverter.org/forum/viewtopic.php?p=37085#p37085
## Quick start / overview
- Modify a PLC adaptor hardware, that it runs on battery
@ -37,22 +37,27 @@ It is worth to read its documentation, starting in docbook/index.html, this cont
(Tested on Linux/Raspbian on a raspberryPi 3)
Find the PLC adaptor
```
pi@RPi3D:~ $ int6klist -ieth0 -v
```
This shows the software version and the mac address.
Read the configuration from the PLC adaptor and write it to a file
```
pi@RPi3D:~ $ plctool -ieth0 -p original.pib 98:48:27:5A:3C:E6
eth0 98:48:27:5A:3C:E6 Read Module from Memory
```
Patch the configuration file (aee /docbook/ch05s15.html). For each side (pev (vehicle) and evse (charger)) there is a special configuration.
Example pev side:
```
pi@RPi3D:~ $ cp original.pib pev.pib
pi@RPi3D:~ $ setpib pev.pib 74 hfid "PEV"
pi@RPi3D:~ $ setpib pev.pib F4 byte 1
pi@RPi3D:~ $ setpib pev.pib 1653 byte 1
pi@RPi3D:~ $ setpib pev.pib 1C98 long 10240 long 102400
```
Write the configuration file to the PLC adaptor
```
pi@RPi3D:~ $ plctool -ieth0 -P pev.pib 98:48:27:5A:3C:E6
eth0 98:48:27:5A:3C:E6 Start Module Write Session
eth0 98:48:27:5A:3C:E6 Flash pev.pib
@ -60,7 +65,7 @@ Write the configuration file to the PLC adaptor
eth0 98:48:27:5A:3C:E6 Close Session
eth0 98:48:27:5A:3C:E6 Reset Device
eth0 98:48:27:5A:3C:E6 Resetting ...
```
The open-plc-utils contain the programs evse and pev, which can be used for try-out of the functionality, using two PLC adaptors.
## Installation / Preconditions on PC side
@ -83,11 +88,13 @@ Then again install pcap-ct, and finally add in the libpcap\_platform\__init__py
Finally, we need to patch the Pcap-ct, because the python script needs a non-blocking version. This is discussed in https://github.com/karpierz/pcap-ct/issues/9
Now, in the IDLE shall 3.10.6, the import works:
```
import pcap
sniffer = pcap.pcap(name=None, promisc=True, immediate=True, timeout_ms=50)
addr = lambda pkt, offset: '.'.join(str(pkt[i]) for i in range(offset, offset + 4))
for ts, pkt in sniffer:
print('%d\tSRC %-16s\tDST %-16s' % (ts, addr(pkt, sniffer.dloff + 12), addr(pkt, sniffer.dloff + 16)))
```
### Usage on Raspberry
Pcap-ct does not work with Python 3.4. After update to Python 3.8, it works.