Multiprotocol I/O Modules Modbus User Manual
Introduction
The MINI, MIX, and MAX series of multiprotocol I/O modules with RS485 and IP have been designed for building distributed control systems using MAC36, AAC20, or another controller. Each module is equipped with the most commonly used types of I/Os in building automation. Depending on the version, the modules are equipped with a mix of different types of I/O in one unit:
- MINI series: 4 or 8 inputs and outputs;
- MIX series: 18 or 38 inputs and outputs;
- MAX series: 24 or 12 inputs or outputs.
All I/O modules have BTL, and MINI/MIX series–UL, certificates. The modules with RS485 and IP are factory-equipped with the two most popular open communication protocols: Modbus (RTU, ASCII, TCP/IP) and BACnet (MS/TP, IP), which are selected using DIP switches. Rotary switches are used to set the module address, which facilitates and accelerates the process of commissioning the system. Built-in mini USB allows for the initial configuration of the unit without external power supply.
Built-in Modbus TCP/IP to Modbus ASCII/RTU gateway enables to connect additional modules/devices that communicate via Modbus RS485.
Thanks to supporting open communication standards, I/O modules can be installed in both new and completed installations, as part of existing BMS. These versatile devices will fit any BMS perfectly.
![](../../__attachments/212598836/00%20IO%20modules.png?inst-v=68924f0d-9756-460f-aa37-f9c17cd13917)
This user manual outlines all information specific to using I/O modules in the Modbus protocol.
Revision History
Rev. | Date | Description |
---|---|---|
1.10 | 10 Nov 2023 |
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1.9 | 15 Feb 2023 |
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1.8 | 25 May 2022 | Rebranded |
1.7 | 13 Oct 2020 |
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1.6 | 19 Feb 2020 |
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1.5 | 5 Oct 2018 |
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1.4 | 7 Dec 2017 |
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1.3 | 16 May 2017 |
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1.2 | 3 Jan 2017 |
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1.1 | 1 Feb 2016 |
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1.0 | 28 Aug 2015 | First edition |