energy-meters:et340
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energy-meters:et340 [2020-07-13 14:28] – [Option B: Wired connection to CCGX] iburger | energy-meters:et340 [2021-03-20 03:07] – guystewart | ||
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- Measure the output of a AC Genset | - Measure the output of a AC Genset | ||
- | The meter is connected to the Color Control | + | The meter is connected to the GX device. There are two options in its wiring: |
- Direct connection, either using the RS485 to USB interface with 1.8m cable length, or the 5.0m cable. | - Direct connection, either using the RS485 to USB interface with 1.8m cable length, or the 5.0m cable. | ||
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{{: | {{: | ||
- | On the CCGX go to the grid meter in the Wired AC sensor settings. Make sure 'Phase type' is set to ' | + | On the GX device |
- | ===== 3. Connection to CCGX === | + | ===== 3. Connection to GX device |
==== Option A: wireless Zigbee connection ==== | ==== Option A: wireless Zigbee connection ==== | ||
=== Step 1. === | === Step 1. === | ||
- | Connect the Zigbee to USB converter to the CCGX using the supplied USB cable. A few seconds after connecting, the active LED should be on and the TX/RX LED should be blinking (the converter takes its power from the CCGX, so the CCGX needs to be switched on as well). | + | Connect the Zigbee to USB converter to the GX device |
{{system_integration: | {{system_integration: | ||
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=== Step 3. === | === Step 3. === | ||
- | Make sure only one Zigbee device is powered up right now: the Zigbee to USB converter connected to the CCGX. Power down all others. //If you don't do this, the Zigbee to RS485 converter may be connected permanently to another Zigbee device.// | + | Make sure only one Zigbee device is powered up right now: the Zigbee to USB converter connected to the GX device. Power down all others. //If you don't do this, the Zigbee to RS485 converter may be connected permanently to another Zigbee device.// |
=== Step 4. === | === Step 4. === | ||
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== note on GX firmware versions: == | == note on GX firmware versions: == | ||
for the new type Zigbee converters, Venus OS v2.54 is the minimum required software version | for the new type Zigbee converters, Venus OS v2.54 is the minimum required software version | ||
- | ==== Option B: Wired connection to CCGX ==== | ||
- | Connect the Energy Meter to the CCGX using the USB to RS485 cable. The RS485 to USB interface cable between the CCGX and the Energy Meter can be extended up to 100 meters; make sure that the extensions of the Data+ (orange) and Data- (yellow) wires form a twisted pair. | + | ==== Option B: Wired connection to GX device ==== |
+ | |||
+ | Connect the Energy Meter to the GX device | ||
^ RS485 Converter ^ Energy meter ^ | ^ RS485 Converter ^ Energy meter ^ | ||
- | | Yellow (Data-) | ||
| Orange (Data+) | | Orange (Data+) | ||
+ | | Yellow (Data-) | ||
| Black (GND) | Terminal 10 | | | Black (GND) | Terminal 10 | | ||
The red, green and brown wire coming out of the USB to RS485 cable are not used. | The red, green and brown wire coming out of the USB to RS485 cable are not used. | ||
- | == Note on bus termination == | + | == Note on cable length extensions and bus termination == |
- | RS485 networks are traditionally terminated at both ends with 120Ω terminators. This is not required if the cable length is short, but may be required for longer cable runs. The ET340 meter has a built in termination resistor that can be enabled by bridging terminals 7 and 9. | + | |
+ | To ensure signal integrity and robust operation, particularly ensure that; | ||
+ | |||
+ | Extension cabling complies with the minimum cross-sectional area specifications in the USB to RS485 data sheet. | ||
+ | |||
+ | Extension cabling has appropriate shielding and twisted pair cores | ||
+ | |||
+ | The original cable attached to the Victron RS485 to USB interface is reduced to a maximum length of 20cm in installations where the total cable length is over 10m or there are installation/ | ||
+ | |||
+ | Cabling is installed separated/ | ||
+ | |||
+ | All wiring is properly terminated (including unused wires) and properly isolated from weather/ | ||
+ | |||
+ | RS485 networks are traditionally terminated at both ends with 120Ω terminators. This is not required if the cable length is short and you are using the Victron supplied RS485 to USB lengths, but may be required | ||
+ | |||
+ | For detailed wiring/ | ||
+ | |||
===== 3. Configuration ===== | ===== 3. Configuration ===== | ||
- | After proper connection and powering up, the meter will be visible on the CCGX in the Settings -> Energy Meters menu: | + | After proper connection and powering up, the meter will be visible on the GX device |
{{ : | {{ : | ||
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===== 4. Multiple Energy Meters in one system ===== | ===== 4. Multiple Energy Meters in one system ===== | ||
- | To connect multiple Energy Meters, wire each meter to a separate RS485-USB converter. Which are then each plugged into a separate USB socket on the CCGX. | + | To connect multiple Energy Meters, wire each meter to a separate RS485-USB converter. Which are then each plugged into a separate USB socket on the GX device. |
Connecting multiple ET340 meters to the same RS485-USB cable is not possible: the ET340 meter has no display and its Modbus address can therefor not be changed. | Connecting multiple ET340 meters to the same RS485-USB cable is not possible: the ET340 meter has no display and its Modbus address can therefor not be changed. |
energy-meters/et340.txt · Last modified: 2022-07-15 10:58 by stefanie