Differences

This shows you the differences between two versions of the page.

--- energy-meters:et340 [2019-01-22 10:16] – external edit 127.0.0.1
+++ energy-meters:et340 [2020-07-13 14:28] – [Option B: Wired connection to CCGX] iburger
@@ Line 1: / Line 1: @@
 ====== Energy Meter ET340 manual ======
 {{ :energy-meters:energy_meter_et340_right_.png?nolink&200|}}
@@ Line 18: / Line 17: @@
   - Direct connection, either using the RS485 to USB interface with 1.8m cable length, or the 5.0m cable.
   - Wireless connection via Zigbee
 ===== 2. AC Wiring =====
@@ Line 57: / Line 55: @@
 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
+== note on GX firmware versions: ==
+for the new type Zigbee converters, Venus OS v2.54 is the minimum required software version
 ==== Option B: Wired connection to CCGX ====
@@ Line 68: / Line 86: @@
 The red, green and brown wire coming out of the USB to RS485 cable are not used.
+== Note on 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.
 ===== 3. Configuration =====
@@ Line 80: / Line 100: @@
 {{ :energy-meters:em340_settings_detail.png?nolink |}}
-==== 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.