Differences

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--- battery_compatibility:discover [2025-12-01 20:36] – dettingale
+++ battery_compatibility:discover [2026-10-10 08:31] (current) – HELIOS ESS: model 52-48-16000; direct path uses the Victron VE.Can to CAN-bus BMS Type A cable with a terminator; patch-cable note for LYNK II only; section 5 numbering guy_stewart
@@ Line 62: / Line 62: @@
   * AES RACKMOUNT 48-48-5120 / 48-48-5120-H
-  * HELIOS ESS 42-48-16000
+  * HELIOS ESS 52-48-16000
 **Victron Products**
@@ Line 210: / Line 210: @@
 . LYNK II Gateway
-The HELIOS ESS supports direct closed-loop communication with Victron inverter-chargers through a modified CAT6 or higher cable.
+The HELIOS ESS supports direct closed-loop communication with a Victron GX device through the Victron VE.Can to CAN-bus BMS Type A cable.
-{{:battery_compatibility:cat5-rj45-cable-for-victron.png?direct&600|}}
+{{:battery_compatibility:ve-can-to-can-bus-bms-type-a-cable.png?direct&600|Victron VE.Can to CAN-bus BMS Type A cable}}
-Use this cable for connections between Victron Energy products and the HELIOS ESS.
+Use the [[battery_compatibility:can-bus_bms-cable|Victron VE.Can to CAN-bus BMS Type A cable]] for the direct connection. Its pin-out matches the HELIOS ESS COM2 port: COM2 pins 4 (CAN-H), 5 (CAN-L) and 6 (GND) connect to VE.Can pins 7, 8 and 3. A standard straight patch cable does not work for this connection.
-. Connect the modified CAT6 or higher cable from the HELIOS ESS COM2 port to the CAN port of the Victron GX device.
+. Plug the cable end labelled "Battery BMS CAN-type A" into the HELIOS ESS COM2 port. Plug the end labelled "Victron VE.Can" into a VE.Can port of the Victron GX device. Insert a VE.Can terminator in the other VE.Can port of the GX device.
 {{:battery_compatibility:victron-nw-connect.png?direct&600|}}
@@ Line 231: / Line 231: @@
 If communication is interrupted between the BMS and Victron inverter-charger, the Victron inverter-charger stops charging until communication is re-established.
-Skip to section 5. Configuring Victron Products.
+For the DVCC settings in step 4, go to section 5.2.1 Configurable Closed-Loop Settings. The 250 kbit/s setting and the cable note in section 5.2 apply to the LYNK II path only.
 ==== 4.2 Configuring the LYNK II ====
@@ Line 387: / Line 387: @@
-==== 5.1 Setting Up Closed-Loop Configuration ====
+==== 5.2 Setting Up Closed-Loop Configuration (LYNK II) ====
 Refer to the latest Discover Energy Systems documentation for battery values and the latest Victron documentation for menu navigation and details on the setup procedure.
@@ Line 410: / Line 410: @@
-**NOTE:** If **Discover AES** does not appear on the Device List, confirm that the CAT5e or higher communication cable is a normal patch type, not a cross-over type. Use manufactured cables to avoid bad crimps and reduce the risk of a poor connection.
+**NOTE:** This note applies to the LYNK II path only. If **Discover AES** does not appear on the Device List, confirm that the CAT5e or higher communication cable from the LYNK II CAN Out port is a normal patch type, not a cross-over type. Use manufactured cables to avoid bad crimps and reduce the risk of a poor connection. For the direct HELIOS ESS connection (section 4.1), use the Victron VE.Can to CAN-bus BMS Type A cable. A patch cable does not work on that path.
-=== 5.1.1 Configurable Closed-Loop Settings ===
+=== 5.2.1 Configurable Closed-Loop Settings ===
 During regular operation, the BMS sets the battery’s charge parameter limits, which the Victron GX device communicates to the inverter-charger and MPPT.
@@ Line 441: / Line 441: @@
-=== 5.1.2 Saving the Configurable Closed-Loop Settings ===
+=== 5.2.2 Saving the Configurable Closed-Loop Settings ===
 **Device List > Settings > General > Reboot?**