We will now configure and operate Analog inputs and outputs on our BRX Do-More controller. One of the features of the BRX Series PLC is the ability to expand its capability to fit your application. This is easily done by “snap-on” modules that will fit on the side of the BRX MPU (Multi-Processor Unit). As we have seen before in the BRX PLC System Configuration post we can add additional discrete inputs and outputs. Automation Direct now offers Analog Voltage and Analog Current input and output modules. These modules come as an 8 point channel unit. There is also a 4 point thermocouple input module also available. We will be configuring, scaling, and programming the Analog input and output Voltage modules for our BRX PLC. Let’s get started.

More information can be obtained at our website. This includes all of the links mentioned in this video.
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00:00 BRX Do-More PLC Analog IO – System Configuration
00:20 Configuring a BRX Do-More Series PLC
04:43 Hardware Module Installation – BRX Do-More Analog
07:36 Sample PLC Program – BRX Do-More Analog Setup

Previously in this BRX Series PLC, we looked at the following:
System Hardware
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System Hardware Video
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Unboxing Video
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Installing the Software
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Installing the Software Video
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Establishing Communication
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Updating Firmware Video
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Numbering Systems and Addressing
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First Program
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Monitoring and Testing the Program
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Online Editing and Debug Mode
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Online Editing and Debug Mode Video
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Timers
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Timers Video
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Counters
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Counters Video
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High Speed IO
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High Speed IO Video
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BRX PLC Compare Instructions
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Compare Instructions Video
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BRX PLC Math Instructions
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Math Instructions Video
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Program Control
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Program Control Video
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Shifting Instructions
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Shifting Instructions Video
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Drum Instruction
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Drum Instruction Video
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Serial Communication – Modbus RTU to Solo Process Temperature Controller
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Serial Communication Video
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Data Logging
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Data Logging Video
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Email – Text SMS Messaging Gmail
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Email Video
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AdvancedHMI Communication – Modbus TCP
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AdvancedHMI Communication Video
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There are several reasons why we are using the BRX Series Controller. Here are just a few.
- Standalone PLC with built in I/O
- Built in Data Logging
- Communication ability - Ethernet Port, RS232, RS485, USB - support for protocols such as Modbus RTU, Modbus TCP, ASCII, K-sequence (DirectLOGIC users), Custom Protocols (ASCII over serial, TCP or UDP over Ethernet)
- Built in Analog input and output
- Integrated motion control
- High speed counters
- Powerful instruction set (Video of Instructons in software)
- Ability to expand the system with a variety of modules
- Part of the Do-More series of PLCs which use the same free software. (Do-More Designer)
- Integrated simulator in the software capable of external communications for testing

The BRX series of programmable logic controllers consist of four different units. They differ depending on the Inputs and Outputs built into the unit and if it has the ethernet port.
No I/O Micro PLC unit – (BX ME)
10 Point Micro PLC unit – (BX 10/10E)
18 Point Micro PLC unit - (BX 18/18E)
36 Point Micro PLC unit - (BX 36/36E)
These CPUs (Central Processing Units) are also known as MPU (Multi Processing Units) because of the communication capabilities.

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