Varta EASY BLADE, Technical Handbook

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Is it possible to change the base CANopen ID that is given to the master battery as well as all the
other slave batteries?
The Node IDs in the system are fixed and not changeable outside the specified range.
CAN bus messages: Has each Module got its own CANopen ID?
Correct. Each battery gets its own fixed Node ID while configuring the system. The range from 1 to 27
is reserved then for fixed Node IDs, even if the system consists only of 3 batteries. Each battery sends
this PDO consisting of its own value. The master sends additional PDOs with Node 27 consisting of
the summary of the whole battery system.
Is it required to charge the batteries having the CAN connected to the charger?
Yes, it is required.
Would it be enough to have a charger with a pre-defined charge profile?
No
– the battery needs to communicate to the charger via CAN.
IS CAN optional or absolutely necessary?
CAN is absolutely necessary. Without CAN charging is not possible.
Is CAN required, that the batteries are communicating internally?
Yes, that is correct.
Is CAN required, that the batteries are communicating with the charger?
Yes, this is correct. Charging is only possible with CAN-communication.
Is the communication modulated onto the direct current signal or is a separate data line required
here that has to be plugged in manually?
Additional signals via a separate plug connection are required for communication.
Does Varta provide some software tool to inspect the battery's state?
Recommended Standard CANopen SW for Debugging / Read out CAN Objects is CANopen Device
Explorer from Emotas (
https://www.emotas.de/produkte/canopen-device-explorer )
Do you have any software drivers for communication/setup that are compatible with Ubuntu?
We do not have any special software. We are using standard USB to CAN Interfaces like Peak CAN
Interface which is fully compatible with linux (drivers). The software itself must be developed by the
customer in this case. If you want to use an open source CANopen stack, you can try to script with
python.
13.3 TPDO/SDO
TPDO7: Master Full Charge Capacity: what is the difference to TPDO6's Master Design Capacity?
Design capacity (DC) is the initial capacity of the batteries. The Full Charge capacity (FCC) is the
“learned” capacity during a learning cycle. FCC / DC = SOH