The Maestro 1000 (M1000) is our intermediate RTU-PLC product to the Maestro 2000, featuring most of the functionality of our flagship product, but focussed on smaller systems which require less functionality.

In conjunction with our SSE-OPC server, they form a synergy of data collection and distribution to most OPC standard SCADA systems.

A number of form-fit modular communication medium modules are available.

Communication Mediums:

  • Analogue Radio

  • Data Radio

  • Cell SMS

  • Cell GPRS

  • RS232/485

  • Fibre Optic

Connects to a wide range of interface modules:

2, 4 and 8 channel I/O lightning protection units.
3, 4 and 8 channel galvanic isolation units for AIN’s.
2, 4 and 8 channel 10 Amp interposing relay modules.


The SSE-MAESTRO M1000 has the following features:

  • Powerful-modular software design.
  • A real-time I/O device.
  • Remote time stamping of event and logged data.
  • Totally configurable and programmable from the SSE OPC Configuration Toolbox.
  • Excellent EMI Protection.
  • Programmable with powerful PLC Languages.
  • Industrial standard high speed processor.
  • On-Board Real-time clock and watch-dog timer.
  • On-Board LED’s indicating the Digital Input and Digital Output Status.
  • Built to ISO 9000 Standards.
  • 24 I/O’s on the main processor board of the SSE-MAESTRO, 8 DIN, 8 AIN, 8 DOT.

On-Board IO Specifications:

  • Analogue Inputs (AIN):
  • 8 Inputs
  • 12 Bit Resolution
  • 0.1 % Accuracy
  • Single ended

Digital Inputs (DIN):

8 Inputs, with LED status display
5 kV isolation

Digital Outputs (DOT):

8 Outputs, with LED status display
Open Collector
250mA sinking per channel

PLEASE NOTE: No I/O expansion capabilities

Other Specifications

Voltage: 9 to 17 Volts DC
Power Consumption: < 120mA
2 x RS232 ports (300 to 57600 bps) RJ45 (EIA-561 Compatible)
Test LED and I/O status

Software Functionality

The SSE-MAESTRO M1000 is packed with powerful features and functions such as:
Digi-peating. (Store and forward)
All individual I/O are configurable by alarm rising, falling, delta change (Analogue) or state change (Digital)
Programmable as a PLC (limited no of lines and commands)
I/O Mapping
Report by change of state

Digi-Peating (Digital Repeating) – (Store & Forward)

Digi-Peating is a method by which a message can be stored and then forwarded to a destination station through other SSE-MAESTRO remote stations. Three intermediate SSE-MAESTRO Stations can be used to digi-Peat (repeat) the message to reach the destination station. Thus, any Maestro equipped remote station can be used to reach stations at far end points. It eliminates the use of expensive repeaters.


The SSE-MAESTRO is totally configurable by using the Configuration Toolbox of the SSE-OPC Server. The SSE-OPC Server can be used to configure and program hundreds of settings and options available in the SSE-MAESTRO.

PLC Programmability

The SSE-MAESTRO can also be programmed to be used to execute control and other PLC decision making tasks. Although it does not have the quick cycle times of a PLC, complex tasks can still be executed. The PLC instruction set programming can be done inside the SSE-OPC Server programming and configuration Toolbox and can then be remotely downloaded via any of the selected communication medium.
Not only local control can be done, but also remote control. Any SSE-MAESTRO can control any other SSE-MAESTRO through a selected communication medium.

I/O Mapping

Any SSE-MAESTRO can request data from any other SSE-MAESTRO and/or report any data to any other SSE-MAESTRO on the communication network. By using I/O Mapping, the transmitted data or received data can be mapped or routed to the received SSE-MAESTRO internal data structure to be used for control and decision making purposes.

Data Reporting

Data can be reported to any number of other SSE-MAESTRO’s or SCADA’s on the communication network. The reporting can happen either on change of state for digital or change of value for analogue inputs. Data will also be transmitted when requested by the base station were the SSE-OPC Server resides.
Any analogue or digital input can be configured as event driven inputs. All parameters to make the inputs are user configurable from the SSE-OPC configuration toolbox.
All change of state events are time stamped at the SSE-MAESTRO. The new value with the time stamp will then be transmitted to the destination for processing.

SMS Reporting

Over and above the reporting of Change of State values to other Maestro’s or SCADA system, the SSE-MAESTRO M1000 can also be configured to send text messages to Mobile Cell Phone users to report alarms. The text describing the alarm condition received on the Mobile phone is completely configurable by the end user or client.

SSE-OPC Server

SSE has a comprehensive and powerful OPC Server which makes the SSE-Maestro equipment a truly open system. Any SCADA or other third party software with OPC Client drivers can interface with the SSE Telemetry equipment via the SSE OPC Server.

Ordering Information

SSE-MAESTRO with 14-Way pluggable ribbon connectors: SSE-M1000 14 Way
SSE-MAESTRO with 10-Way pluggable screw terminal connectors: SSE-M1000 10 Way