Differences

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--- energy-meters:et112 [2018-12-04 22:06] – [4. Multiple ET112 Meters in one system] robduthie
+++ energy-meters:et112 [2020-06-27 13:23] – [Option A: wireless Zigbee connection] - note on compatibility boekel
@@ Line 23: / Line 23: @@
 ===== 2. AC Wiring =====
+==== Configuration Options ====
 {{:energy-meters:schema_-_et112.png|}}
-Wiring when used as a grid meter.           Wiring when used to measure PV inverter or AC Genset.
+**Grid Meter** - Wiring when used as a grid meter.         **PV Inverter** -  Wiring when used to measure PV inverter or AC Genset.
+This configuration option of either Grid Meter, or PV Inverter is set in the [[venus-os:start|GX device]]. That selection will effect how the system should be wired, and how the information received from the meter is displayed on the screen.
+==== Example Diagram ====
+In this example configuration, a single ET112 is configured as a **Grid Meter** and will measure the grid import/export of an ESS system with a AC PV inverter. While the exact production of the AC PV inverter will not be seen, this is still a useful configuration as it allows the AC PV production to first flow to the non-essential loads on that same circuit.
+  * A surplus will be used to charge the batteries (seen as export and tried to reduce to grid set point eg 0).
+  * A deficiency will trigger a discharge of the batteries (seen as import, and tried to reduce to grid set point).
+This can be useful if the [[ess:start|Victron ESS system]] is installed as a retrofit to an existing AC Solar inverter installation with some larger loads that aren't wired through the Multiplus.
+If you wanted to see PV production separately you could use the "single phase dual function mode" of the [[energy-meters:et340|ET340]].
+{{:energy-meters:energy_meters_-_et112_-_2019-01-21.png?direct&800|}}
 ===== 3. Connection to CCGX ===
@@ Line 38: / Line 56: @@
 Connect the Zigbee to RS485 converter to the ET112 energy meter:
-^ Zigbee Converter ^ Energy meter ^
+^ Zigbee Converter ^ Energy meter ^ Color ^
-| GND              | Terminal 6   |
+| GND              | Terminal 6   | Black |
-| A                | Terminal 4   |
+| A                | Terminal 4   | Orange |
-| B                | Terminal 5   |
+| B                | Terminal 5   | Yellow |
 === Step 3. ===
@@ Line 49: / Line 67: @@
 Connect the 12V DC power supply to the Zigbee to RS485 converter. When the power is switched on, check the LEDs again.
+=== note on old and new zigbee converters ===
+Please note that there is a new zigbee converter available now, that is -not- backwards compatible with the old converters. If you have a non compatible set, please ask your supplier for a correct version.
+'old' type:
+ASS300400100 - Zigbee to RS485 converter partnumber: DRF2619C
+ASS300400100 - Zigbee to USB converter   partnumber: DRF2618A
+'new' type:
+ASS300420100 - Zigbee to RS485 converter partnumber: DRF2659C
+ASS300420200 - Zigbee to USB converter   partnumber: DRF2658C
 ==== Option B: Wired connection to CCGX ====
@@ Line 79: / Line 111: @@
 Connecting multiple ET112 meters to the same RS485-USB cable is not possible: the ET112 meter has no display and its Modbus address can therefor not be changed.
-Note 1 You can connect the ET112 in parallel, just need to change the MOD address to another number using the Configuration
+Note 1 You can connect the ET112 in parallel, just need to change the MOD address to another number using the Configuration software from the supplier which is free from Carlo Gavazzi Web site.
-software from the supplier which is free from Carlo Gavazzi Web site.
 ===== DISQUS =====
 ~~DISQUS~~