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Unipi Axon M535

Axon

Unipi Axon M535 is a programmable logic controller (PLC) designed for automation, control, regulation and monitoring. The M535 is an intermediate model of the Axon 500 line and features the highest number of analog I/Os from all Axon models, along with a basic set of digital inputs and relay outputs. The controller is equipped with four RS485 serial interfaces (RS485 + RS232). 

Note: The M535 is a development successor of the Axon M515

Features

  • focused on a high number of I/Os
  • the highest number of analog I/Os, four serial lines (RS485 + RS232)
  • durable aluminium chassis (IP20 protection), wider operating temperature range
  • integrated industrial computer (quad-core CPU, 1 GB RAM)
  • onboard 8GB eMMC memory
  • designed for DIN rail mounting
  • RS485 and RS232 serial lines
  • software openness (based on Linux OS)
  • preinstalled Mervis software (can be manually reflashed)

Discontinued

Product description

Unipi Axon M535 is a programmable logic controller (PLC) designed for automation, control, regulation and monitoring. The M535 is an intermediate model of the Axon 500 line and features the highest number of analog I/Os from all Axon models, along with a basic set of digital inputs and relay outputs. The controller is equipped with four RS485 serial interfaces (RS485 + RS232).

Basic features

Digital inputs 4 Common features
1.2GHz quad-core ARM CPU, 1GB RAM
8GB eMMC onboard memory
2× USB 2.0
1× 1Gbit Ethernet
Wi-Fi, Bluetooth
Extended operating temperature range
Aluminium chassis (IP20)
Digital outputs -
Relay outputs 5
Analogue inputs 8
Analogue outputs 8
RS485 serial interface 2
RS232 serial interface 1
1-Wire bus -
Ethernet 1

*more detailed info about the number and type of analogue I/Os is available in the product's datasheet (see the Files tab above)

Inputs & outputs description

Digital inputs (DI) are designed for reading states of two-state devices such as various digital sensors, switches and buttons, motion sensors etc. All digital inputs feature counter functionality by default. 

Relay outputs (RO) serve for switching devices with higher current draw and devices requiring alternating current (AC) such as water heaters, pumps, contactors or external relays with higher switching current.

Analog inputs (AI) are designed to measure voltage, current or resistance in order to read values from various analog sensors (pressure meters, thermometers, tension gauges etc.).

Analog outputs (AO) are used to control and regulate devices such as three-way valves, electric motors, frequency inverters, heat exchangers etc. by direct current or voltage.

Computing module

Axon controllers are powered by a quad-core, 1.2GHz Alwinner H5 CPU and feature a 1GB RAM for an excellent performance. The 8GB onboard eMMC memory then offers better reliability compared to systems relying on microSD memory cards. 

Communication interfaces

By default, all Axon controllers feature RS485 serial lines. This type of interface usually uses the Modbus RTU protocol and can be used for communication with various devices such as Extension xS extension modules, energy meters, touchscreen HMI displays, controllers from other vendors, various sensors etc. A single bus can support dozens of devices while its length can reach up to several hundred meters.

Selected models also feature a single RS232 serial line. In the field of automation, this interface is usually used for communication with various converters, closed-in technologies or display devices such as HMI panels. 

A single 1-Wire bus is also available on selected models. This interface uses 2-3 conductors for collecting data from various 1-Wire sensors such as thermometers, humidity meters, light intensity sensors etc.). A single 1-Wire bus supports up to 15 devices, the overall length of the bus can reach up to 200 meters. 

By default, all Axon controllers feature a single 1Gbit Ethernet port for network communication. 

Software options

Thanks to the software openness of Unipi controllers customers can choose from a broad range of software solutions and are not limited to a single platform Among supported solutions are both commercial and open-source systems. Visit the Other software overview for the list of other supported solutions.

The main supported solution is the Mervis control system - a platform developed in accordance with the IEC 61131-3 standard for PLC programming, that includes SCADA interface for remote management and monitoring, a comprehensible development environment, a human-machine interface (HMI) editor and an online/on-premise database for storing historical data and retrospective analysis of the controlled technology's operation. 

Aside from commercial platforms you can also choose any from the list of supported open-source solutions, or use the EVOK API (Websocket, REST,...) Modbus TCP, SysFS or other tools for implementing your own logic in any programming language. Visit this link for the list of supported software solutions. 

Package contents

  • Axon controller
  • removable screw terminals
  • DIN rail holder (35 mm)
  • 2× DIN rail holder mounting screws
  • 1× grounding screw
  • instruction leaflet
  • lifetime Mervis license code

Other features

All components of the controller are encased within a durable aluminium chassis (IP20 protection). The controller is designed for mounting on a standard DIN rail (35 mm). 

Axon model overview

Name DI DO RO AI AO RS485 RS232 1-Wire Common features
Type S, size on a DIN rail: 4 modules (7 cm)

1.2GHz quad-core ARM CPU (1.2 GHz)

1GB RAM

8GB eMMC onboard memory

2× USB 2.0

Wi-Fi, Bluetooth

Aluminium chassis (IP20)

Extended operating temperature range

S105 4 4 - 1 1 2 1 1
S115 4 4 - 1 1 4 - 1
S1551 4 4 - 1 1 2 1 1
S1753 4 4 - - - - -
S205 8 - 8 - - 1 - 1
S215 8 - 8 - - 1 1 -
S505 - - - 4 4 1 - 1
S515 - - - 4 4 1 1 -
S6054 - - - - - 1 1 -
Type M, size on a DIN rail: 4 modules (7 cm)
M205 20 4 14 1 1 2 1 1
M2652 20 4 14 1 1 2 - 1
M525 8 4 5 5 5 3 1 1
M535 4 - 5 8 8 2 1 -
M5652 8 4 5 5 5 3 - 1
Type L, size on a DIN rail: 4 modules (7 cm)
L205 36 4 28 1 1 2 1 1
L525 24 4 19 5 5 3 1 1

1- 2× Ethernet (1 Gbit + 10/100 Mbit)
2 - wireless LTE module
3 - wireless IQRF module
4 - IEC 62386 (DALI-compatible)

Further information

Documentation

Instruction leaflet
Technical and safety information
download
Modbus register map
Table overview of Modbus registers
download
Product datasheet
Datasheet of the product
download
Certification
Declaration of conformity
download

CPU quad-core, 1.2 GHz
RAM 1 GB
USB 2.0
Ethernet 1× 1 Gbit
Digital inputs 4
Relay outputs 5
Analog inputs 8
Analog outputs 8
RS485 interface
RS232 interface
Power 24 V DC
Dimensions 140 mm × 90 mm × 60 mm
Mounting DIN (35 mm)
RTC backup max. 7 days
Weigth 560 g