Frequently Asked Questions

The field agent Windows service is installed on the site PC; average installation time is 4 hours. Internet access and TCP access to Modbus devices on the site PC is sufficient. No physical mounting, cable routing or panel changes are required.

We support Modbus TCP/RTU, M-Bus TCP and DSE protocols. Most industrial energy analysers, transformer protection relays and UPS units connect via Modbus. Contact us with your device catalogue number and compatibility is checked immediately.

Modbus RTU operates over RS-485 serial, common in older devices; up to 32 devices per line. Modbus TCP operates over Ethernet/Wi-Fi, preferred in modern panels, faster and more fault-tolerant. Argus supports both protocols; they can be used together in the same system.

Yes. Argus EMS is designed with multi-tenant architecture. Each site operates in its own isolated database, but all facilities can be accessed with a single session from the central web interface. Ideal for hospital chains, factory complexes or building portfolios.

Argus EMS works as an independent monitoring layer; it does not replace but complements your existing SCADA or BMS system. Parallel connections to the same devices over Modbus TCP can be established. An OPC-UA bridge is planned for future versions.

Data continues to accumulate in the field agent SQLite queue on the site PC. The 5 GB buffer stores approximately 30 days of data. When the internet reconnects, all accumulated data is automatically transferred to the server — not a single reading is lost. This is guaranteed by the ACK-based mechanism.

According to EPDK regulations, a penalty applies when inductive reactive energy exceeds 20% of consumption and capacitive reactive energy exceeds 15%. Argus monitors these ratios cumulatively throughout the month and sends an advance warning when approaching the threshold. The end-of-month estimate is also displayed in real time.

Unlimited devices can be defined in a single project. In practice, each field agent can manage dozens of Modbus devices through a gateway; capacity can be increased by defining multiple gateways. In the multi-tenant structure, each site operates in isolation in its own database.

The field agent reads devices every 60 seconds by default; this can be reduced to 15 seconds per project. The dashboard refreshes automatically every 5 minutes. Push notifications for instant alarm conditions are delivered immediately.

THD (Total Harmonic Distortion) and power factor can be monitored if the device provides these registers. Parameters are configured via the device template; the system itself does not measure harmonics — it reads and visualises the values measured by the device.

Tenant-based invoices are automatically calculated from sub-meter readings and the defined tariff. They are generated as PDFs and can be sent by email. Distribution company invoices can also be uploaded via OCR; deviations are automatically detected.

CK Boğaziçi electricity bills and ISKI water bills are automatically parsed with Tesseract OCR engine. PDF and photo (JPG/PNG) formats are supported. New invoice formats are added on request; usually takes 1–2 business days.

For each project, instant readings are stored for 13 months in PostgreSQL, hourly summaries for 3 years, and daily snapshots indefinitely. The field agent SQLite queue provides a 5 GB (~14 day) offline buffer. Storage duration can be extended as server capacity increases.

Yes. Argus EMS fully implements the TEDAŞ multi-period tariff (off-peak/peak/night). Hourly summaries are broken down by tariff period; each period is shown separately in the monthly invoice. Tariff hours and prices can be updated from the web interface.

Argus uses the same period's consumption from the previous year as the base and applies seasonal correction factors. Annual change trend for electricity, bell curve for gas and seasonally weighted average for water are used. The projection is updated monthly and shown in real time on the dashboard.

Each customer/site is kept in a completely separate PostgreSQL database. JWT access tokens contain the project ID; the system compares the project ID in the token with the project ID in the URL on every API call. Cross-access is rejected at the system level with 403.

The ISO 50001 performance summary (EnPI) module is under development. The current data model is designed to meet ISO 50001 requirements: baseline year consumption, normalisation factors and energy intensity calculation infrastructure is ready.

Updates are performed with a single command from the server via the remote MQTT management channel. No physical access to the site PC or remote desktop is required. When the update is complete, the agent restarts automatically and data flow is not interrupted.

Yes. MQTT traffic between the site PC and server is encrypted with TLS 1.2+ (port 8883). The web interface is served over HTTPS; HTTP requests are automatically redirected to HTTPS. JWT tokens are valid for 60 minutes, refresh token for 7 days.

BACnet/IP protocol support is on our roadmap. It is planned after the current Modbus and M-Bus infrastructure is complete. If you have a BACnet-compatible device and integration is a priority, let us know — it helps determine development priority.

DSE (Deep Sea Electronics) controllers communicate via Modbus TCP. Argus supports the register map of DSE 7310, 7320 and compatible models: running hours, RPM, oil pressure, coolant temperature, load and fuel level can be read.

M-Bus is a communication protocol for heat, water and gas meters under the EN 13757 standard. Argus supports meters connected via M-Bus TCP. Compatible with meters from Kamstrup, Landis+Gyr, Sontex and other leading brands with TCP-M-Bus converter units.

In our reference facilities, the average payback period is 6–18 months. Reactive penalty prevention, peak demand management and tenant billing accuracy together achieve 8–18% cost reduction. Request a demo for an estimated ROI calculation based on your facility's current energy bill.

Argus EMS is licensed per project; each site is configured and priced independently. Offered as an installation fee + annual support package. Cloud hosting is included; no additional server cost. Contact info@nevacontrol.com for a detailed price quote.

Upload the reactive kVArh values and active kWh values from your last 12 months of electricity bills to Argus; the system automatically calculates the time spent in the penalty zone and the estimated penalty amount. It also recommends the required kVAr capacity for a compensation panel installation.