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FAQ/Charge Control C: add note about Modbus and ignore_echo #92

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FAQ/Charge Control C: add note about Modbus and ignore_echo #92

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FAQ/Charge Control C: add note about Modbus and `ignore_echo`
barsnick Apr 2, 2026
e14850b
Revert "FAQ/Charge Control C: add note about Modbus and `ignore_echo`"
barsnick Apr 2, 2026
4aabfa0
Hardware: add column and note about EIA-485 echo
barsnick Apr 2, 2026
511782e
Hardware: fix QCA7000 typo
barsnick Apr 2, 2026
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32 changes: 19 additions & 13 deletions docs/source/hardware.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -162,13 +162,19 @@ The baudrate of each EIA-485 interface is configurable up to 115200 bps.
* - Termination
- yes, 120 Ohm enableable via SW1 (factory default: not activated)
- yes, 120 Ohm permanently activated
* - :rspan:`1` Failsafe Biasing [1]_
- PCB board revision ≤ V0R32 [2]_ :no
* - Local Echo
- yes [1]_
- yes [1]_
* - :rspan:`1` Failsafe Biasing [2]_
- PCB board revision ≤ V0R32 [3]_ :no
- :rspan:`1` yes
* - PCB board revision > V0R32 [2]_ :yes
* - PCB board revision > V0R32 [3]_ :yes

.. [1] 390 Ohm Pull-up & 390 Ohm Pull-down resistors permanently activated
.. [2] PCB board revision string can be found on the left side of the board near the relays
.. [1] You need to suppress the echo when reading from the interface. When using
EVerest's ``SerialCommHub`` module, its configuration option ``ignore_echo``
needs to be set to ``true``.
.. [2] 390 Ohm Pull-up & 390 Ohm Pull-down resistors permanently activated
.. [3] PCB board revision string can be found on the left side of the board near the relays


Supported Electricity Meter Measurands
Expand Down Expand Up @@ -1314,18 +1320,18 @@ Each device is marked with a label containing the following data:
3. Production Data Code: WWYY
4. 2D DataMatrix code containing the following information as a list of space separated values:
a. Order Code
b. MAC address Ethernet [3]_ (only present for variant 200 and 300)
c. MAC address CP QCA7000 [3]_ (only present for variant 200 and 300)
d. MAC address CP QCA7000 Linux interface [3]_ (only present for variant 200 and 300)
e. MAC address mains QCA7000 [3]_ (only present for variant 300)
f. MAC address mains QCA700 Linux interface [3]_ (only present for variant 300)
b. MAC address Ethernet [4]_ (only present for variant 200 and 300)
c. MAC address CP QCA7000 [4]_ (only present for variant 200 and 300)
d. MAC address CP QCA7000 Linux interface [4]_ (only present for variant 200 and 300)
e. MAC address mains QCA7000 [4]_ (only present for variant 300)
f. MAC address mains QCA7000 Linux interface [4]_ (only present for variant 300)
g. DAK mains QCA7000 (only present for variant 300)
h. Serial Number [4]_
h. Serial Number [5]_
i. Production Data Code

.. [3] without colons or other delimiters
.. [4] without colons or other delimiters

.. [4] 10 digits, with leading zeros
.. [5] 10 digits, with leading zeros

An example is shown in figure Example Label for Charge Control C.

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