SmartGen HGM9560

Mains supervision controller

HGM9560 supervises mains and busbar conditions in a parallel-generator installation. Its published protocol distinguishes mains measurements from busbar measurements. Modelling those two electrical locations separately makes its data useful for plant monitoring and import/export analysis.

HGM9560 controller
  • Modbus RTU

Mains supervision controller

Compatibility

Documented Modbus RTU interface

One RS-485 Modbus RTU slave interface; separate CAN MSC coordination link

HGM9560 is a mains and busbar controller rather than an engine controller. Its status table includes switch, mains and genset state fields; label them by plant position instead of treating all values as engine telemetry.

Connect it with

When the documented monitoring interface is fitted and configured

  • Modbus
  • Edge
  • Platforms
Mains supervision controller
Interface
Gateway
Edge
Output
HGM9560HGM9560
Isolated serial interfaceApproved RS-485-to-host adapter
ZGW-20 GatewayHosts Edge locally
EpiSensor EdgeEdge Gateway
Customer platformMQTT · API · files
Modbus RTU · RS-485
Isolated serial
Runs locally
Optional onward data
Record the controlled breaker and the voltage sensing locations. Match the RS-485 serial format, then read mains frequency using FC03 at decimal offset 64. Compare it with the mains frequency display before adding busbar values. The customer-platform output is optional; Edge remains the local system of record.

Models

Download
ModelsInterfaceRoute into Edge
HGM9560One RS-485 Modbus RTU slave interface; separate CAN MSC coordination linkRecord the controlled breaker and the voltage sensing locations. Match the RS-485 serial format, then read mains frequency using FC03 at decimal offset 64. Compare it with the mains frequency display before adding busbar values.

Specifications

HGM9560 is a mains and busbar controller rather than an engine controller. Its status table includes switch, mains and genset state fields; label them by plant position instead of treating all values as engine telemetry.12

Plant role
Mains supervision controller1
Monitoring and configuration
One RS-485 Modbus RTU slave interface; separate CAN MSC coordination link2
Model distinction
HGM9560 is a mains and busbar controller rather than an engine controller. Its status table includes switch, mains and genset state fields; label them by plant position instead of treating all values as engine telemetry.12
Panel protection
IP55 with the specified panel gasket.1

Interface

Documented measurements and integration boundaries for HGM9560.

  • Mains and busbar voltage and frequency measurements
  • Switch position, mains state and controller alarms
  • Electrical power quantities defined for the connected measurement inputs

Assessment

One RS-485 Modbus RTU slave interface; separate CAN MSC coordination link

InteroperabilitySupported with conditions
One RS-485 Modbus RTU slave interface; separate CAN MSC coordination link12
AccuracySupported with conditions
The documentation identifies electrical and operating measurements for this plant role. CT configuration and measurement location determine how those values are used.12
SecurityNot yet assessed
The cited documentation does not establish an authenticated, encrypted Edge monitoring connection.
ReliabilityNot yet assessed
The controller application distinguishes operating conditions and alarms. Retain communication availability alongside the plant readings.
RuggednessSupported with conditions
IP55 with the specified panel gasket.1
ScalabilityNot yet assessed
Assign one device identity per controller and keep generator, mains and busbar measurements separate.
LifecycleSupported with conditions
Retain the exact model documentation and configuration when replacing a controller or communication module.12

Setup

Read mains frequency

Best-effort starting point from the retained SmartGen protocol. Confirm the serial settings and compare this first read with the controller display.

Source
HGM9560 protocol V1.2, 3 January 2024, page 16
Function
03, read holding registers; quantity 1
Address convention
Table 0064 / reference 40065 means decimal PDU offset 64 (0x0040)
Request PDU
03 00 40 00 01
Decode
One 16-bit word, scale 0.01 Hz. Example 0x1388 = 5000 = 50.00 Hz.

Acceptance: Compare the decoded mains frequency with the mains display, rather than the busbar frequency field.

  1. Record the controlled breaker and the voltage sensing locations.

    Match the RS-485 serial format, then read mains frequency using FC03 at decimal offset 64. Compare it with the mains frequency display before adding busbar values.

  2. Record CT ratios and the physical measurement location.

    Compare the first electrical values with the controller display before using them in totals or trends.

  3. Keep missing responses distinct from a stopped generator.

    Store communication availability beside running state so a disconnected cable does not look like healthy standby.

  4. Build a read-only point list for monitoring.

    Remote start, synchronisation and breaker operation require a separate control design with the existing panel interlocks and feedback.

Sources

  1. HGM9560 product (opens in a new tab) (PDF) SmartGen
  2. HGM9560 protocol (opens in a new tab) (PDF) SmartGen

Further reading

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