# Maple Systems > Leading manufacturer and distributor of Touch Screen HMIs, PLCs, Touch Screen PCs, Box PCs, Operator Interface Terminals, PLC\+HMIs, and SCADA Software to the automation industry\. Generated by Yoast SEO v27.9, this is an llms.txt file, meant for consumption by LLMs. ## Pages - [Network Switches Comparison Table](https://maplesystems.com/industrial-network-switches/network-switches-comparison-table/): Looking for a specific feature, click the category to jump to that section\. This table is for reference only, refer to the product data sheet for more information and specification\. - [Programmable Logic Controllers \(PLC\)](https://maplesystems.com/plc/) - [Technical Support Topics](https://maplesystems.com/support-center/faqindex/) - [Products](https://maplesystems.com/products/) - [Industrial Rugged Tablets](https://maplesystems.com/rugged-tablets/) ## Posts - [How Industrial PCs and HMIs Improve Data Center Uptime](https://maplesystems.com/industrial-pcs-hmis-data-center-solutions/): Data centers aren't just rows of server racks; they are massive mission\-critical facilities relying on complex grey space infrastructure\. As data center footprints grow, localized control and processing at the equipment level, rather than relying solely on cloud\-based dashboards, are more important than ever to guarantee continuous uptime\. - [Control Cabinet Fundamentals for Industrial Automation](https://maplesystems.com/control-cabinet-fundamentals/): In today's world, a control cabinet is recognized as the central nervous system of modern industrial and infrastructure systems\. Beyond a simple metal enclosure, this sophisticated hub integrates power distribution, automation logic, and real\-time communication\. Cabinets serve as the "brain" of automated operations, where signals from thousands of field sensors are received, processed by high\-performance controllers, and translated into precise physical actions\. - [A Guide to Industrial Push Buttons](https://maplesystems.com/industrial-push-button-guide/): In a world increasingly dominated by touchscreens and complex graphical interfaces, the humble push button remains an indispensable and critical component in the industrial marketplace\. From the earliest electric light switches in the late 19th century to their modern\-day, rugged counterparts in advanced automation systems, these "original" human\-machine interfaces \(HMIs\) provide essential functionality, safety, and reliability on the factory floor\. - [Understanding How Push Buttons Work](https://maplesystems.com/understanding-how-push-buttons-work/): The push button switch is a masterpiece of mechanical simplicity\. By using a spring\-loaded actuator to bridge or break a gap between two metal terminals, it allows for the safe and instantaneous control of complex electrical systems\. - [How to Choose the Right Tower Stack Light for Industrial Automation](https://maplesystems.com/choose-the-right-tower-stack-light/): Choosing the right tower stack light is essential for maintaining machine visibility, improving response times, and reducing downtime in industrial automation systems\. Learn how Maple Systems tower stack lights provide multi\-color LED indication, modular expandability, audible alarms, industrial durability, and flexible mounting options to help optimize machine status communication across your facility\. ## FAQs - [Do you sell replacement keys for your Keyed Selector Switches?](https://maplesystems.com/faq/do-you-sell-replacement-keys-for-your-keyed-selector-switches/): No, we recommend making a copy yourself once they're received\. You can also buy a new Keyed Switch with keys to replace the switch with missing keys\. - [Are replacement parts available for your pushbuttons and selector switches?](https://maplesystems.com/faq/are-replacement-parts-available-for-your-pushbuttons-and-selector-switches/): Yes\! We offer replacement LEDs, Contact Blocks, Metal Rings, Legend Plate Frames and more\! Need a button cover? We have those\. Switch Guard? Yep, we have those too\. How about a Control Box? Several\! - [What is the mounting hole size for your pushbuttons and selector switches?](https://maplesystems.com/faq/what-is-the-mounting-hole-size-for-your-pushbuttons-and-selector-switches/): Currently, our pushbuttons and selector switches come in the standard 22 mm diameter only\. Contact our Sales Team for more information - [Are your pushbuttons illuminated?](https://maplesystems.com/faq/are-your-pushbuttons-illuminated/): Yes, our illuminated Pushbuttons are available in Red, Green, Blue, Yellow, and White\. Contact our sales team today for more information - [What is the difference between a pushbutton and a selector switch?](https://maplesystems.com/faq/what-is-the-difference-between-a-pushbutton-and-a-selector-switch/): A pushbutton is operated by pressing it and is usually used for starting and stopping, or resetting a machine\. A Selector Switch is turned to different positions, generally for choosing between operating modes or functions such as Forward, Reverse, or Off\. ## Integrations - [How to Connect a Maple Systems PLC to a Maple Systems HMI \+ PLC Combo Unit](https://maplesystems.com/integration/connect-maple-systems-plc-hmc/): In this integration tutorial, you'll learn how to connect a Maple Systems PLC to a Maple Systems HMI \+ PLC combo unit, with the PLC as the Modbus Client \(master\)\. We'll cover basic configuration on both devices for serial and Ethernet connections\. As well as some general Modbus configurations between the two devices\. - [How to connect a Maple Systems HMI \+ PLC Combo Unit to any Modbus PLC](https://maplesystems.com/integration/connect-maple-systems-hmi-plc-combo-modbus-plc/): In this integration tutorial, you'll learn how to connect a Maple Systems HMI \+ PLC unit to a Maple Systems PLC\. We'll cover all the configuration steps in MAPware\-7000 and MapleLogic for both serial and Ethernet connections, as well as data manipulations you'll need on the HMI \+ PLC side\. - [How to Connect a PLC to a Tower Stack Light](https://maplesystems.com/integration/connect-plc-to-tower-stack-light/): Learn how to connect and program a Maple Systems PLC to control a tower stack light for real\-time machine status indication\. This step\-by\-step guide covers wiring the tower light, configuring the PLC in MapleLogic, creating ladder logic for operating states such as Ready, Running, Warning, Maintenance, and Alarm, and downloading the project to the PLC for testing and operation\. - [How to Connect an Andon System to a Maple Systems HMI](https://maplesystems.com/integration/connect-andon-system-maple-systems-hmi/): Learn how a Maple Systems HMI can act as the control point for an Andon system without using a PLC\. You will see how the HMI communicates with remote I/O over Modbus TCP to drive red, yellow, and green stack lights\. This guide shows how to configure both EBPro and EasyRemote I/O for a simple PLC\-less architecture\. - [How to Run FactoryTalk on a Maple Systems Industrial PC](https://maplesystems.com/integration/run-factorytalk-maple-systems-industrial-pc/): In this integration tutorial, you'll learn how to Run FactoryTalk Machine Edition on a Maple Systems IPC\. We'll cover initial download, loading an existing FactoryTalk project onto the IPC, and configuring the IP address of an Allen Bradley PLC\. ## Knowledge Base - [IEC 61131\-3 Programming](https://maplesystems.com/knowledgebase/hmc/iec-61131-3-programming/) - [IEC 61131\-3 Programming Guide 5: Structured Text \(ST\)](https://maplesystems.com/knowledgebase/hmc/iec-61131-3-programming/iec-61131-3-programming-guide-5-structured-text-st/) - [Getting Started Guide 2: Creating a Sample Project using IEC 61131\-3](https://maplesystems.com/knowledgebase/hmc/getting-started-guide-basics/hmi-plc/) - [Getting Started Guide](https://maplesystems.com/knowledgebase/hmc/getting-started-guide-basics/) - [HMI \+ PLC](https://maplesystems.com/knowledgebase/hmc/): Setup guides, programming resources, and troubleshooting articles for Maple Systems HMI\+PLC combo units\. Covers project configuration, I/O mapping, communication protocols, and integration workflows\. ## Sample Projects - [HMI Email Alarm](https://maplesystems.com/sample-project/hmi-email-alarm/): Demonstrates how to configure an HMI project to send an email when an alarm occurs\. - [0\-10V \& 4\-20mA Pressure Sensor Analog Input Setup](https://maplesystems.com/sample-project/0-10v-4-20ma-pressure-sensor-analog-input-setup/): This sample project will cover how to configure and wire the Analog Input for a pressure sensor using 0\-10V and 4\-20mA on a Maple Modular PLC and in MapleLogic control software\. - [Turning On and Off a Pump using Digital I/O](https://maplesystems.com/sample-project/turning-on-and-off-a-pump-using-digital-i-o/): This sample project will demonstrate how to turn the digital output on and off using a pump and receiving feedback\. - [Reading Temperature using an RTD Sensor](https://maplesystems.com/sample-project/reading-temperature-using-an-rtd-sensor/): This sample project will demonstrate how to read temperature with an RTD Sensor using a Maple Modular PLC and an RTD Module in MapleLogic\. - [Reading Temperature using a Thermocouple](https://maplesystems.com/sample-project/reading-temperature-using-a-thermocouple/): This sample project will demonstrate how to read temperature with a thermocouple using a Maple Modular PLC and a Thermocouple Module in MapleLogic\. ## Technical Notes - [Enabling the mobile access client of AVEVA Edge](https://maplesystems.com/technical-notes/enabling-the-mobile-access-client-of-aveva-edge/) - [How to Upgrade CODESYS Firmware on a cMT](https://maplesystems.com/technical-notes/how-to-upgrade-codesys-firmware-on-a-cmt/) - [Multiple HMIs connecting to one PLC](https://maplesystems.com/technical-notes/multiple-hmis-connecting-to-one-plc/) - [HMI Media Storage Capacity](https://maplesystems.com/technical-notes/hmi-media-storage-capacity/) - [Configuring a printer using the IPP protocol or PPD file](https://maplesystems.com/technical-notes/configuring-a-printer-using-the-ipp-protocol-or-ppd-file/) ## Tutorials - [How to use MQTT with a Maple Systems HMI](https://maplesystems.com/tutorial/how-to-use-mqtt-with-a-maple-systems-hmi/) - [How to use the Maple Systems PLC Protocol Drivers in EBPro](https://maplesystems.com/tutorial/how-to-connect-to-maple-systems-plc/) - [How to Use OPC UA With a Maple Systems HMI](https://maplesystems.com/tutorial/how-to-use-opc-ua-with-a-maple-systems-hmi/) - [How to Connect Remote I/O to a Maple Systems HMI](https://maplesystems.com/tutorial/how-to-connect-remote-i-o-to-a-maple-systems-hmi/) - [How to use SQL with a Maple Systems HMI](https://maplesystems.com/tutorial/how-to-use-sql-with-a-maple-systems-hmi/) ## Videos - [MQTT Message Partial Value in an HMI Project](https://maplesystems.com/video/mqtt-message-partial-value-in-an-hmi-project/): Learn how to configure MQTT Message Partial in EasyBuilder Pro 6\.6\.1 or later\. This tutorial demonstrates how to set up MQTT publishers and subscribers, configure value\-triggered message transmission, and optimize communication by sending data only when values change\. You'll also see how HMI time values are published and subscribed to using JSON\-formatted MQTT topics\. - [How to Connect to a Raspberry Pi with a Maple Systems Web HMI](https://maplesystems.com/video/how-to-connect-to-a-raspberry-pi-with-a-maple-systems-web-hmi/): In this video, you'll learn how to connect your Raspberry Pi's GPIO to a Maple Systems Web HMI\. This step\-by\-step tutorial covers wiring the Raspberry Pi, initializing a Flask server for exposing the GPIO, and connecting to that flask server via web HMI\. Perfect for any industrial workflow using a Raspberry Pi\. - [Unboxing a Maple Systems Tower Stack Light \- TL1 Series](https://maplesystems.com/video/unboxing-a-maple-systems-tower-stack-light-tl1-series/): In this video, you'll get an up\-close look at the TL1 Series features, including modular stackable LED light segments, direct\-mount and pole\-mount options, steady and flashing operation modes, optional buzzer alarms, wiring connections, and mounting accessories\. Designed for industrial automation, machine status indication, operator alerts, and production line signaling, the TL1 Series provides bright 360\-degree visibility, durable industrial construction, and flexible installation options to fit a wide range of applications\. Whether you're an OEM, system integrator, machine builder, or maintenance professional, this video will help you understand how Maple Systems tower stack lights can improve machine visibility, reduce response times, and enhance operational efficiency\. - [How to connect a Maple Systems HMI \+ PLC \(HMC\) to a Modbus VFD](https://maplesystems.com/video/how-to-connect-a-maple-systems-hmi-plc-hmc-to-a-modbus-vfd/): In this video, you'll learn how to control a Modbus VFD with a Maple Systems HMI \+ PLC \(HMC\) Combo unit\. This step\-by\-step tutorial covers wiring for a serial connection, Configuring an HMC project for Modbus communication\. Perfect for adding a VFD to your existing HMC project\. - [How to Connect a PLC to an MQTT Broker](https://maplesystems.com/video/how-to-connect-a-plc-to-an-mqtt-broker/): In this video, you'll learn how to configure MQTT communication between a Maple Systems PLC \(PLC\-FB1616P0202\), a Maple Systems IIoT Communication Gateway HMI \(cMT\-G01X\), and a local Mosquitto MQTT broker using MapleLogic and EBPro\. This step\-by\-step tutorial covers the complete MQTT setup process, including broker configuration, publish/subscribe topic mapping, MQTT tag setup, ladder logic programming in MapleLogic, system register configuration, and real\-time data exchange verification using MQTT Explorer\. Perfect for Industrial IoT \(IIoT\), PLC\-to\-cloud communication, and MQTT\-based automation projects\. ## Products - [PBS114](https://maplesystems.com/product/modelname/pbs114/): Selector switches provide a clear and dependable way for operators to choose between different machine functions or operating modes\.  Available in a range of sizes, configurations, and styles to fill the specific selector switch needs of any application - [PB04008L](https://maplesystems.com/product/modelname/pb04008l/): \

A rugged legend plate frame with label for pushbuttons, ensuring crisp, long\-lasting identification on any control panel\.\ \

For use with all Pushbuttons\ - [PB04018L](https://maplesystems.com/product/modelname/pb04018l/): \

A rugged legend plate frame with label for pushbuttons, ensuring crisp, long\-lasting identification on any control panel\.\ For use with all Pushbuttons - [PB04015L](https://maplesystems.com/product/modelname/pb04015l/): \

A rugged legend plate frame with label for pushbuttons, ensuring crisp, long\-lasting identification on any control panel\.\ For use with all Pushbuttons - [PB04019L](https://maplesystems.com/product/modelname/pb04019l/): \

A rugged legend plate frame with label for pushbuttons, ensuring crisp, long\-lasting identification on any control panel\.\ For use with all Pushbuttons ## Categories - [HMI](https://maplesystems.com/category/hmi/) - [Industrial PC](https://maplesystems.com/category/panel-pc/) - [PLC](https://maplesystems.com/category/plc/) - [Industrial Monitor](https://maplesystems.com/category/industrial-monitor/) - [Uncategorized](https://maplesystems.com/category/uncategorized/) ## Integration Categories - [3rd Party Devices](https://maplesystems.com/integrations/3rd-party-devices-web-hmi/) - [HMI](https://maplesystems.com/integrations/hmi/) - [Rugged Tablets](https://maplesystems.com/integrations/rugged-tablets/) - [PLC](https://maplesystems.com/integrations/plc/) - [Tower Stack Light](https://maplesystems.com/integrations/tower-stack-light/) ## Playlists - [Promotional Videos](https://maplesystems.com/video-playlist/promotional-videos/) - [EBPro HMI Software Training Series](https://maplesystems.com/video-playlist/ebpro-hmi-software-training-series/) - [Integration Videos](https://maplesystems.com/video-playlist/integration-videos/) - [HMI Communications](https://maplesystems.com/video-playlist/hmi-communications/) - [HMI Remote Access](https://maplesystems.com/video-playlist/hmi-remote-access/) ## Optional - [Sitemap index](https://maplesystems.com/sitemap_index.xml)