Victron energy Color Control GX - Appendix; Rv-C; Supported Dgns; RV-C out

20. Appendix
20.1. RV-C
20.1.1. Supported DGNs
This chapter describes which data of the supported devices are available and the corresponding DGNs (Data Group Numbers).
RV-C defines several messages. A detailed specification of the protocol and message definition is publicly available on RV-
C.com.
20.1.2. RV-C out
Generic
The GX main RV-C interface and all virtual devices report the minimum required DGNs:
DGN DGN# Description
PRODUCT_ID 0xFEEB Manufacturer, product name, serial number
SOFTWARE_ID 0xFEDA Software version
DM_RV 0x1FECA Diagnostics
DM01
*
0x0FECA Diagnostics
*
In addition to DGN DM_RV 0x1FECA, also J1939 DGN DM01 0x0FECA is announced for all RV-C out devices to support older
RV-C control panels that do not support the DM_RV DGN.
Main interface
The GX main interface identifies as “Control Panel” (DSA=68) on RV-C and is responsible for requesting and processing data
from all RV-C nodes.
DC Source messages
All DC connected devices are capable of reporting DC_SOURCE_STATUS_1. This includes the inverter/charger, inverter,
charger, battery and solar charger services. VE.Bus Inverter/charger and Battery/BMS reports DC current and voltage, all other
devices report voltage only.
According to the RV-C spec, only one node is allowed to broadcast DC source messages from the same instance. Every device
type has its own priority which is used to determine which node must send the DC source messages. Consider the following
system:
• Inverter/charger (DC source instance 1, prio 100)
• Solar charger (DC source instance 1, prio 90)
• AC charger with 3 outputs (DC source instance 1, 2 & 3, prio 80)
• Battery monitor (DC source instance 1, prio 119)
In this case the battery monitor broadcasts DC source data with instance 1, as this has the highest priority. Additionally the AC
charger broadcasts DC source data with instance 2 and 3 (output 2 and 3), as there are no other devices with those instances.
More information about DC source messages in the RV-C specification manual. Chapter 6.5.1 explains the priority mechanism.
Color Control GX Manual
Page 116 Appendix