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DO Supply is a global leader in replacement parts for industrial automation equipment. Our mission is to elevate the standard of expert support, speed, and reliability for your need-it-now automation replacement and repair needs. Whether it's PLCs, drives, motors, HMIs, or more, you can count on us for the best service and fastest solutions.
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Shop a large selection of manufacturers and product lines.
IC693CPU374
This CPU module supports Ethernet communication and is equipped with services for PLC programming and configuration. It operates at a processor speed of 200 MHz and includes one IP address with two RJ
In Stock Ships Today
4.0
IC200CHS022
Belonging to the Versamax series, this box-style I/O carrier supports mounting for a single I/O module. It accommodates 36 terminals, with options for solid or stranded wire configurations. The module
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4.7
IC200EBI001
This ENIU features support for slave applications and various I/O module control tasks, equipped with five status LEDs for real-time monitoring. It can be mounted on DIN rail and connects power direct
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4.7
IC695CPE305
The IC695CPE305 RX3i CPU is a central processing unit manufactured by GE Fanuc. It comes with a single slot, 8 local racks, 5 MB of user memory, 1.1 GHz of processor speed, and RS-232 embedded serial
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4.6
IC200CPUE05
This CPU supports Ethernet communication at a data rate of 10 Mbps and includes two serial ports with RS-232 and RS-485 options. Configuration is flexible with a memory capacity of 128 KB, and the mod
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4.8
IC695CHS012
This universal backplane accommodates up to 12 slots and is compatible with various power supply types, including AC and DC. It features provisions for both expansion and remote backplane connections,
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4.9
IC200PNS001
The GE Fanuc IC200PNS001 module is a PROFINET Scanner (PNS) module from the Versamax series. It has a power consumption of 0.6 Amps at 5 Volts DC and two 10/100 Mbps copper shielded RJ-45 media connec
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4.6
IC695PSD040
The GE Fanuc Automation IC695PSD040 module is a power supply module. It operates with a voltage range between 18 and 33 Volts DC.
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5.0
IC693CPU364
The IC693CPU364 module is a CPU module with an Etherent interface. The IC693CPU364 module is compatible with the GE Fanuc Series 90-30 PLCs.
In Stock Ships Today
4.7
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2 October 2026
When a Soft Starter Is the Wrong Choice
Motor control comes in all different shapes and sizes depending on its use case and feature set. Soft starters, for example, are a fantastic solution when the goal is to bring a motor up to speed gradually without subjecting your equipment to the sudden shock of an across-the-line start. By gradually controlling the power delivered to the motor during startup, they can reduce starting current, limit mechanical shock, and provide a smoother acceleration. However, they aren’t a fit for every motor application. The biggest limitations usually appear after the motor starts. Once acceleration is complete, a soft starter typically supplies the motor at full line conditions, often through a bypass contactor, and provides far less continuous motor control than a variable-frequency drive. There are also applications where a soft starter adds complexity and expense without providing much benefit. Understanding these situations can make the difference between choosing a controller that fits the...
30 September 2026
Designing ControlLogix Systems for High Uptime
Unplanned downtime is one of the biggest concerns in industrial production. A single control-system failure can stop an entire production line, leading to lost material, idle equipment, missed deadlines, and costly delays. For this reason, high-uptime ControlLogix systems are designed around more than just the controller itself. Controller redundancy, resilient EtherNet/IP networks, redundant power, distributed I/O, and advanced diagnostics can all help keep a system running when something goes wrong. However, simply installing higher-end hardware does not guarantee reliability. The overall architecture still needs to reduce single points of failure and allow the system to recover quickly when a fault occurs. High-uptime control systems should be engineered to withstand single-component hardware failures while maintaining continuous operation — without interrupting data execution or process outputs. The ControlLogix platform accomplishes this through a synchronized, redundant chassis...
28 September 2026
PLC Communication Protocol Trade-offs
Distributed control systems, essential to modern industrial automation, need distinct hardware components to communicate seamlessly across large facility floors. The Programmable Logic Controller (PLC) is at the core of this system. PLCs execute control logic, process sensor and I/O data, command field devices, and exchange information with HMIs, SCADA systems, drives, remote I/O, and higher-level systems. But a PLC’s effectiveness depends on the communication networks that connect it to company databases, input/output (I/O) modules, human-machine interfaces (HMIs), and supervisory control and data acquisition (SCADA) systems. Over the last several decades, simple proprietary serial lines have given way to sophisticated, high-speed Ethernet-based protocols. Determinism, bandwidth, distance, setup complexity, and cybersecurity must all be balanced to choose the best protocol, which is seldom a simple technical task. Automation engineers must understand these trade-offs to build...