61
Expert Power Control 8021/8025
© 2021 GUDE Systems GmbH
Specifications
epc8025spRevEnergyReactiveRe-
settable
.79.1.5.5.2.1.23.x
Gauge32
RO
Resettable Reverse Reactive Energy counter.
epc8025CPUSensorVsystem
.79.1.5.14.1.0
Gauge32
RO
System Voltage on CPU Board
epc8025CPUSensorVaux
.79.1.5.14.2.0
Gauge32
RO
Auxiliary Voltage on CPU Board
epc8025CPUSensorVmain
.79.1.5.14.3.0
Gauge32
RO
Main Voltage on CPU Board
epc8025CPUSensorTcpu
.79.1.5.14.4.0
Integer32
RO
Temperature on CPU Board
epc8025NTPTimeValid
.79.1.5.15.1.0
INTEGER
RO
Show if valid Time is received
epc8025NTPUnixTime
.79.1.5.15.2.0
Unsigned32
RO
show received NTP time as unixtime (secs since 1 January 1970)
epc8025NTPLastValidTimestamp
.79.1.5.15.3.0
Unsigned32
RO
show seconds since last valid NTP timestamp received
epc8025SensorIndex
.79.1.6.1.1.1.x
Integer32
RO
None
epc8025TempSensor
.79.1.6.1.1.2.x
Integer32
RO
actual temperature
epc8025HygroSensor
.79.1.6.1.1.3.x
Integer32
RO
actual humidity
epc8025AirPressure
.79.1.6.1.1.5.x
Integer32
RO
actual air pressure
epc8025DewPoint
.79.1.6.1.1.6.x
Integer32
RO
dew point for actual temperature and humidity
epc8025DewPointDiff
.79.1.6.1.1.7.x
Integer32
RO
difference between dew point and actual temperature (Temp -
DewPoint)
epc8025ExtSensorName
.79.1.6.1.1.32.x
OCTETS
RW
A textual string containing name of a external Sensor
4.6
SSL
TLS Standard
The device is compatible with TLS v1.1 to TLS v1.3 standards, but due to lack of se-
curity, SSL v3.0, TLS 1.0, and RC4, MD5, SHA1, and DES encryption are disabled. All
ciphers use Diffie-Hellman key exchange (Perfect Forward Secrecy).
TLS 1.3 performance
The interaction of TLS 1.3 and unsecure certificates and a web browser with Chro-
mium Engine (Google Chrome or MS Edge) can lead to performance losses, and thus
longer loading times. In this constellation, the Chromium Engine does not correctly
support the SSL Session Cache (Session Tickets) and the math unit of the embedded
CPU may be overwhelmed with continuous RSA operations. There are some possible
workarounds:
·
Use secure certificates (official certificate authority or marked as secure in the OS)
·
or use of the Firefox browser
·
or use of ECC 256 (no RSA) certificates
·
or configure to "TLS v1.2 only
Creating your own Certificates
The SSL stack is supplied with a specially newly generated self-signed certificate. There is no
function to generate the local certificate anew at the touch of a button, since the required ran-
dom numbers in an embedded device are usually not independent enough. However, you can
create new certificates and import them to the device. The server accepts RSA (2048/4096)
and ECC (Elliptic Curve Cryptography) certificates.
Содержание Expert Power Control 8021 Series
Страница 2: ...2 Expert Power Control 8021 8025 2021 GUDE Systems GmbH...
Страница 5: ...Device Description...
Страница 14: ...Operating...
Страница 24: ...Configuration...
Страница 51: ...Specifications...
Страница 92: ...Support...