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COMMUNICATION TESTING

Ensure more than 5,000 cell states
are correctly interpreted under one control clock

Validate the full digital path from 105 BMUs and 15 RBMS units to the system BMS, EMS, PCS, and remote interfaces. Do not only check “online”—verify addressing, data integrity, timing, protocol translation, alarm propagation, and fault recovery.

The goal of communication authentication is not “network access”, but to allow every control and status signal to be located, explained and restored.
5.064MWh / 1.25MW BESS

01 Address universe. Full map from core value to system address

System BMS System Control
EMS Ethernet / TCP
PCS Modbus TCP
HMI Visualization
Meter RS485 / TCP
Gateway Protocol Bridge
RBMS-01 0x0101
RBMS-02 0x0102
RBMS-15 0x010F
BMU-001 Pack Address
BMU-002 Cell / NTC
BMU-105 105 / 105
Rack 01–07 336 Cells
Rack 08–14 336 Cells
Rack 15 / Remaining Address Bound
System BMS: System-level BMS consolidates 15 RBMS states and provides consistent system syntax to the EMS/HMI supersystem.

02 Agreement boundaries and translation Physical interface and protocol matrix

Domain Protocol / Rate Purpose Physical media / Port Connect objects Status
BMU ↔ RBMS CAN 2.0B / 500kbps Core and module data, alarm. Block double winch 105×BMU → 15×RBMS ACTIVE
Support equipment RS485 / Modbus RTU 9600/19200bps meter, humidity, auxiliary IO RS485 bus Meters / Sensors / IO ACTIVE
SBMS / EMS / PCS / HMI Ethernet / Modbus TCP 100Mbps System data and control Industrial Ethernet SBMS ↔ EMS / PCS / HMI ACTIVE
Key hardline Hardwired DI / DO E-stop, fire protection, access control, etc. Port platoon Interlocks / Protection ACTIVE
Remote gateway (optional) IEC 60870-5-104 Remote dispatch interface Ethernet SCADA / Dispatch NOT ACTIVE
Electricity system (optional) IEC 61850 Substation integration Ethernet Substation / EMS NOT CONFIGURED
BMU ↔ RBMS: The bottom core collection chain uses CAN 2.0B 500kbps to carry the core voltage, temperature, state and BMU diagnosis.

03 Time and data integrity

Sampling Timestamp →Clock Sync →Security Number →CRC/Error Frame →DB Ingestion, must be validated as the same data integrity chain.

04 How one alarm propagates across the full system Example hypertemperature

CEL Cell 0x0C4A
BMU BMU 0x002A
RB RBMS 0x0103
SYS System BMS Alarm Bus
EMS EMS / HMI Display
REM Remote Optional
OP Operator Ack
Alert information Cell Over Temperature
Alarm code ALM-CT-0105
Serious level Major
Source Object Cell / BMU
Dissemination P95 240 ms
Confirm Status ACKNOWLEDGED
09:27:14.512 Cell's overheated.
09:27:14.581 BMU reports.
09:27:14.632 RBMS receives and forwards
09:27:14.742 System BMS Generation System Alert
09:27:14.815 EMS/ HMI display
09:28:03.101 Operator confirm.

05 Network failure laboratory

Fault injection project Security policy Recovery Results
The link's broken. Heart beat timeout / command inhibition Autorecover
Node Offline Status indicator / limit control Autorecover
Delayed submission Delayed alarm/ quality downgrade Autorecover
Switch restart Command to keep/ cache protection 7.8 s
Cyberstorm Service limit / buffer verification Autorecover
Broken link: Simulates that the CAN/Ethernet physical link is disconnected, and the system automatically reaches the controlled downgrade and retains the final active state.

• Signal evidence mapping

Release
Decision
Report grab bag: The original CAN/Ethernet package is used to support the actual transmission of the signal, time stamp and network quality.

07 Release to Fundal Administration

✓ DIGITAL CONTROL CHAIN VERIFIED
System TC-DEMO-ESS-2608-006
Plan TC-DEMO-CTP-2608-006-R01
Signal Matrix TC-DEMO-SIG-2608-006-R04
Status VERIFIED
Released To Functional Verification Only
Release Time 2025-05-26 10:15:22
Released By TC-Engineer-02
Open Critical NCR 0
Communization Testing enters through authorization only. Functional VerificationI don't know. It is not equivalent to FAT adoption or final project delivery.

08 Baseline of standards and tools

MB Modbus TCP / RTU Upper control and support equipment communications
CAN CAN 2.0B 500kbps · BMU / RBMS
62443 IEC 62443 Industrial communications safety and access control context
PTP IEEE 1588 / NTP Unified Time Sync
SPEC Internal protocol norms TC-SPEC-CT-001
104 IEC 60870-5-104 NOT ACTIVE
61850 IEC 61850 NOT CONFIGURED
Compunification Testing concludes: The current examples have validated 105/105 BMU, 15/15 RBMS online, 5,040 cell values and 1,260 NTC maps complete, no conflicting addresses, time series and data quality satisfied test windows, and communication failure recovery and alert dissemination have become traceable evidence. IEC 60870-5-104 remaining NOT ACTIVEIEC 61850 remains NOT CONFIGURED, is therefore not included in this release capability statement.