Productivity Open P1AM Industrial Arduino Operators


Operators in your Arduino sketches (programs) consist of comparison blocks, concatenate strings, bitwise operators, string conversion, ‘not’ operator, and compound operators. These operations generally will be used with other instructions in your sketch. It is important to understand what instructions are available and what they are designed to accomplish.

We will be looking at each of these instructions that are available using productivity blocks. A sample sketch will be shown that will use some of these operators. The sketch will get a number between 1 and 100 from the built-in Arduino IDE (integrated development environment) serial monitor. It will print the number on the monitor if it is between 1 and 100, else it will print try again. Let’s get started! Continue Reading!

Modbus RTU TCP Remote IO Controller BX-MBIO

The BX-MBIO Modules are remote I/O controller modules that provide a remote input and output (I/O) using the Modbus protocol for communications. They provide both Modbus RTU and Modbus TCP interface. Modbus RTU is a serial communication and Modbus TCP is an Ethernet communication. They function as listening/replying devices (slave, server) and can connect with any mastering (master, client) device that communicates using the Modbus protocol.
Modbus RTU is supported over an RS-485 serial connection. Modbus TCP is supported over an Ethernet connection. Any Modbus RTU master and Modbus TCP client that adheres to the Modbus.Org standards, and support the function codes listed can communicate with the BX-MBIO.
The remote I/O expansion units feature the following:
• RJ45 Ethernet port for communications via Modbus TCP
• RS485 serial port for communications via Modbus RTU
• Supports up to 8 additional Expansion Modules (Add the discrete or analog I/O you require)
• AC and DC powered units available
• AC powered units include an integral 24VDC auxiliary output power supply
• Power connector and serial port connector included

We will be looking at the BX-MBIO-M. This is the Do-More Modbus Remote I/O supported protocol unit. We will discuss the hardware and then connect and configure the unit to work with our existing BRX Do-more PLC. Let’s get started.
Continue Reading!

Productivity Open P1AM Industrial Arduino Program Control

Arduino programs (sketches) can be written in thousands of different ways. The best way will determine the purpose of your program and what you are trying to accomplish. To simplify the logic we will be looking at program control that can be achieved using productivity blocks.
Program control will look at subroutines (sometimes referred to as methods or functions), conditional statements and looping statements. These three items can be combined to reduce your code length, make your program easier to read, and in turn easier to troubleshoot.

We will be looking at each of these instructions that are available using productivity blocks. A sample program will then be discussed that will contain some program control as a demonstration. Let’s get started. Continue Reading!

BRX Do-More PLC Ethernet Remote IO Controller BX-DMIO

The BRX Do-More PLC has its own line of remote input and output expansion units. You can add up to 8 I/O expansion units per controller (CPU) and 8 BRX expansion modules per expansion unit. This will make your system grow with your needs.

The remote I/O expansion units feature the following:
• All units have built-in Ethernet port, 10/100 Mbps
• MBIO units have onboard RS-485 port with removable 3-Pin connector
• Support for 8 expansion modules
• AC and DC powered units available
• AC powered units include an integral 24VDC auxiliary output power supply
• Power connector and serial port connector included

We will be looking at the BX-DMIO-M. This is the Do-More Ethernet Remote I/O supported protocol unit. We will discuss the hardware and then connect and configure the unit to work with our existing BRX Do-more PLC. Let’s get started. Continue Reading!

Productivity Open P1AM Industrial Arduino Serial Monitor COM

The Arduino integrated development environment (IDE) has a built-in pop-up serial monitor. The serial monitor can be used to receive and send serial data to our Arduino program. This can be a great feature to help us in debugging or controlling Arduino programs. (Sketches)
We will be modifying the blinking light program that we did previously and add a one to an integer every time the P1AM-100 arduino CPU switch is on. This will be then printed on the serial monitor.

Removing the blinking light, we will run our program again an see the difference in speed with the delay instructions removed. Productivity blocks will be used to program our industrial arduino controller.
We will then look at escape character codes that we can use with our industrial arduino. Since the built-in serial monitor will not interpret the escape codes, we will be using Putty as our serial monitor program. Let’s get started. Continue Reading!