Monitoring lets you see UPS status, get alerts and integrate power into your wider management systems – before a small issue becomes downtime. The right interface depends on what you are integrating with.

SNMP (network monitoring)

SNMP is the standard way to monitor a UPS over an IP network. An SNMP card in the UPS intelligent slot exposes status, alarms and measurements to a network management system (NMS), and supports remote shutdown of servers. ATENCO UPS systems support SNMP cards by series, such as the TM550, TM220 or other series-specific monitoring cards, depending on the UPS platform and configuration. This is the usual choice for IT and data-center environments.

Modbus RTU over RS-485

Modbus is a protocol, not a separate card. ATENCO UPS systems provide Modbus RTU over an RS-485 interface for integration with building-management systems (BMS), PLCs and SCADA. It can carry key UPS measurements and alarms over a serial bus commonly used in industrial and facility environments. Protocol availability and register mapping vary by UPS series and configuration. Note this is Modbus RTU on RS-485, not Modbus-TCP.

BMS integration

Building-management and facility-monitoring platforms typically integrate the UPS through SNMP (over the network) or Modbus RTU (over RS-485), depending on the platform. The UPS becomes one more monitored asset alongside cooling, access and power, so operators see everything in one place.

Dry contact / relay signaling

For the simplest needs, a dry-contact relay card provides volt-free signals for events such as “on battery”, “low battery”, “bypass” or “fault”. EPO / REPO (remote emergency power-off) functions are available by UPS model and wiring configuration. This interface needs no network or software and is ideal for basic alarm panels and legacy systems.

Which interface should you use?

ATENCO communication options

ATENCO UPS systems use series-specific communication interfaces, including intelligent-slot SNMP cards, relay / dry-contact options and RS-485 / Modbus RTU where supported. The exact card set, protocol map and monitoring function vary by series and project configuration. For documents, filter the Resource Center by SNMP / Monitoring, or search for TM550, TM220, SNMP, Modbus, BMS or dry contact.

Card types, protocol availability, register mapping, EPO / REPO wiring and BMS / PLC integration vary by UPS series, firmware and configuration. Confirm the communication options against the specific model, the site network and your monitoring platform.