Learn LS Electric PLC Modbus communication with a practical guide to RTU and TCP setup, XG5000 configuration, register mapping, diagnostics, and troubleshooting.
Detailed guide to integrating LS Electric PLCs with Modbus RTU and Modbus TCP devices, covering communication architecture, configuration, registers, addressing, and troubleshooting.
LS Electric PLC Modbus communication provides a practical way to connect XGB and other LS ELECTRIC controllers with HMIs, drives, meters, sensors, SCADA systems, and third-party automation equipment. The most important part of a successful Modbus installation is not simply enabling the protocol; it is matching the physical interface, communication parameters, station addressing, register mapping, Modbus function codes, and PLC configuration exactly between the two devices. This guide explains how to configure LS Electric PLC Modbus communication, set up Modbus RTU and TCP architectures, diagnose failed communication, and avoid the configuration mistakes that cause most field problems.
What Is LS Electric PLC Modbus Communication?
Modbus is one of the most widely used industrial communication protocols because it is relatively simple, vendor-neutral, and supported by a large range of automation equipment. An LS ELECTRIC PLC can use Modbus to exchange data with devices such as variable frequency drives, temperature controllers, power meters, remote I/O, HMIs, industrial computers, and other PLCs.
For LS ELECTRIC systems, Modbus communication can be implemented through different physical and network interfaces depending on the PLC family and installed communication hardware. XGB controllers, for example, support serial communication through their Cnet functionality, including RS-232C and RS-485 interfaces on applicable configurations. LS ELECTRIC documentation identifies Modbus ASCII/RTU client and server operation as supported modes and provides baud rates ranging from 1,200 to 115,200 bps on applicable serial channels.
That distinction matters. Modbus is the protocol; RS-485, RS-232C, or Ethernet is the communication medium. Many commissioning problems happen because these two layers are treated as though they are the same thing.
For example, an RS-485 network may carry Modbus RTU, while Ethernet normally carries Modbus TCP. The PLC application, addressing model, diagnostics, wiring, and troubleshooting procedure therefore depend on which implementation you are actually using.
Automation engineers working with PLC-based systems can also use the broader range of programmable logic controllers and industrial automation equipment when designing a complete control architecture.
LS Electric PLC Modbus RTU vs. Modbus TCP
Before opening XG5000, determine exactly which Modbus architecture the application requires.
Modbus RTU over RS-485
Modbus RTU is commonly used for field-level communication. It uses a serial connection and normally operates over RS-485 in multi-device installations.
A typical architecture might look like this:
LS Electric PLC → RS-485 → VFD → Energy Meter → Temperature Controller
The devices share the physical communication network, but each slave must have a unique Modbus station address.
RS-485 is particularly useful for industrial environments because it supports differential signaling and relatively long communication distances compared with RS-232C. LS ELECTRIC documentation specifies a maximum transmission distance of up to 500 m for the applicable RS-485 channel under its stated conditions.
However, distance alone does not guarantee reliable communication. Cable quality, termination, grounding, topology, electrical noise, baud rate, and device configuration all influence network performance.
Modbus TCP over Ethernet
Modbus TCP uses Ethernet rather than a serial bus. Instead of assigning only a serial station number, devices communicate using IP addresses and TCP networking.
A typical architecture is:
SCADA/HMI → Ethernet switch → LS PLC → Ethernet device
Modbus TCP is generally easier to integrate into modern plant networks because Ethernet infrastructure is already widely available. It also makes communication with PCs, SCADA platforms, industrial gateways, and networked devices straightforward.
However, Ethernet does not eliminate communication problems. Incorrect IP addressing, subnet configuration, firewall rules, TCP port settings, duplicate IP addresses, or incorrect register addressing can still prevent communication.
Which should you use?
Use Modbus RTU when you have a simple serial field network, legacy equipment, drives, meters, or devices that only provide RS-485.
Use Modbus TCP when the equipment supports Ethernet and you need higher-level integration with SCADA, HMIs, industrial PCs, or plant networks.
The correct choice depends on the actual hardware. Do not assume that every LS Electric PLC model supports every Modbus implementation simply because the LS product family supports Modbus.
Understanding the Modbus Client and Server Roles
One of the first configuration decisions is identifying which device is the client and which is the server.
Traditional Modbus terminology often uses master and slave. Modern documentation increasingly uses client and server, and that terminology is preferable.
The client initiates a request. The server responds.
For example:
LS PLC as Client → Modbus Request → VFD as Server
The PLC might request the VFD’s output frequency, motor current, fault status, or operating state.
Alternatively:
HMI/SCADA as Client → Request → LS PLC as Server
Here, the HMI initiates the communication and the PLC responds with process data.
This distinction is critical because the configuration is different. If the LS PLC is configured as a server while the application requires it to initiate requests, the network can be electrically perfect and still appear completely dead.
LS ELECTRIC’s XGB documentation explicitly supports Modbus ASCII/RTU client and server operation on applicable Cnet configurations.
LS Electric PLC Modbus Communication Setup
A successful installation starts with a communication specification rather than trial-and-error programming.
Before configuring the PLC, document these parameters:
PLC model
CPU version
Communication module or built-in channel
Physical interface
Modbus RTU or TCP
Client/server role
Slave/server address
IP address, if Ethernet is used
Baud rate
Data bits
Stop bits
Parity
Modbus function code
Starting register
Number of registers
Data type
Word order
Scaling
Polling interval
Expected response time
This simple checklist eliminates a surprising number of commissioning failures.
Step 1: Confirm the LS PLC Hardware
First verify the exact PLC model and communication interface.
Do not configure communication based only on the name “XGB.” Different XGB configurations have different communication capabilities and available ports.
LS ELECTRIC currently provides XGB documentation and product-specific downloads through its automation documentation resources.
The communication interface must support the intended protocol.
For serial Modbus, determine whether the relevant channel is RS-232C or RS-485. For a multi-device Modbus RTU network, RS-485 is normally the appropriate physical interface.
Step 2: Configure the Serial Parameters
For Modbus RTU, both sides must use compatible serial settings.
The core parameters are:
Baud rate: 9600, 19200, 38400, etc.
Data bits: commonly 8.
Parity: None, Even, or Odd.
Stop bits: commonly 1 or 2 depending on the configuration.
Station number: unique address for each server/slave.
LS ELECTRIC specifies configurable serial settings including 7 or 8 data bits, 1 or 2 stop bits, Even/Odd/None parity, and baud rates from 1,200 through 115,200 bps for applicable XGB Cnet channels.
The key rule is simple:
The PLC and the connected device must agree exactly.
If the PLC uses 19,200 baud, 8 data bits, Even parity, and 1 stop bit while the device expects 9,600 baud, 8-N-1, communication will fail regardless of how good the PLC program is.
Step 3: Configure the Modbus Station Address
Every Modbus RTU server on the same network requires a unique station address.
For example:
| Device | Station |
|---|---|
| LS PLC | 1 |
| VFD | 2 |
| Power Meter | 3 |
| Temperature Controller | 4 |
Do not duplicate station addresses.
If two devices respond to the same address, the PLC can receive conflicting responses, producing corrupted frames, timeouts, CRC errors, or intermittent behavior.
LS ELECTRIC documentation provides station-number configuration and identifies the supported station range for applicable XGB communication functions.
Configuring Modbus Communication in XG5000
XG5000 is the engineering software used with LS XGT-family PLCs for programming, configuration, monitoring, and diagnostics. LS ELECTRIC currently lists XG5000 software and dedicated XG5000 manuals for XGK/XGB systems.
The exact menu names can vary according to PLC family, firmware, XG5000 version, and communication hardware, so always verify the procedure against the manual for the exact controller.
Communication Channel Configuration
Start by configuring the applicable communication channel.
Select the communication module or built-in serial channel and verify:
Physical interface
Communication mode
Baud rate
Data format
Parity
Stop bits
Station number
Client/server operation
Modbus mode
The important point is to configure the channel that is physically connected to the device. A perfectly configured Modbus channel is useless if the cable is connected to a different port.
P2P Communication
On applicable LS systems, Modbus client communication can be configured through the PLC’s point-to-point communication functionality.
The general sequence is:
Communication channel → P2P configuration → Modbus protocol → request parameters → target station → data mapping
Each request needs to identify what the PLC is asking the server to do.
For example:
Read holding registers
Read input registers
Read coils
Read discrete inputs
Write a single register
Write multiple registers
The exact function code depends on the target device.
Modbus Function Codes
Common Modbus function codes include:
| Function Code | Purpose |
|---|---|
| 01 | Read Coils |
| 02 | Read Discrete Inputs |
| 03 | Read Holding Registers |
| 04 | Read Input Registers |
| 05 | Write Single Coil |
| 06 | Write Single Register |
| 15 | Write Multiple Coils |
| 16 | Write Multiple Registers |
Function code 03 is especially common when reading process values from industrial devices.
However, do not assume that a register listed as 40001 automatically means the PLC should request address 40001.
This is one of the most common Modbus mistakes.
Modbus Register Addressing: The Problem That Causes Endless Debugging
Modbus documentation frequently presents addresses using notation such as:
00001
10001
30001
40001
These labels traditionally indicate different register areas.
The actual Modbus protocol frame, however, carries a numerical starting address. Device manufacturers may document that address using one-based notation, zero-based notation, or proprietary conventions.
For example, documentation might state:
Holding Register 40001
But the actual protocol request may use an offset of:
0
Another device may document the first register as address 1.
Therefore, when an LS PLC receives an exception response or returns unexpected data, verify the target device’s register addressing convention before changing the PLC logic.
Data Types Matter
A register is normally 16 bits, but the engineering value may be:
UINT16
INT16
UINT32
INT32
FLOAT32
Bit field
Scaled integer
A temperature value of 253 may actually represent:
25.3°C
because the device stores the value multiplied by 10.
Likewise, a 32-bit floating-point value occupies two consecutive 16-bit registers.
That creates another major problem: word order.
A device may store the high word first, while another expects the low word first. If the words are reversed, the PLC may receive a value that looks completely nonsensical even though the Modbus communication itself is working correctly.
Mapping Modbus Data Into the LS PLC
Once the PLC successfully communicates with the remote device, map the received data into PLC memory.
A clean implementation separates:
Communication data → Raw registers → Engineering values → Control logic
For example:
D100 = Raw Motor Speed
D101 = Raw Motor Current
D102 = Raw Drive Status
Then the program converts the raw values into engineering values used by the control system.
This is preferable to scattering raw Modbus addresses throughout the PLC program.
A well-structured application might use a dedicated data area:
D100–D119: VFD data
D120–D139: Energy meter data
D140–D159: Temperature controller data
D160–D179: Communication diagnostics
This makes troubleshooting substantially easier.
How to Test LS Electric PLC Modbus Communication
Do not immediately start modifying ladder logic when communication fails.
Test the system systematically.
Test 1: Verify Physical Communication
Check:
Power to every device
RS-485 A/B polarity
Cable continuity
Shielding
Termination
Ground/reference requirements
Correct communication port
Ethernet link status
Switch port status
For RS-485, A/B labeling is particularly troublesome because manufacturers do not always use identical naming conventions.
If swapping A and B suddenly produces communication, the issue was physical-layer polarity rather than PLC programming.
Test 2: Verify Communication Parameters
Confirm both ends.
Write the settings down rather than relying on memory.
For example:
19200 / 8 / E / 1
means:
19,200 baud
8 data bits
Even parity
1 stop bit
Every parameter must match.
Test 3: Check the Station Address
Confirm that the request is going to the correct server.
A request addressed to station 5 will not produce a useful response from a device configured as station 3.
Test 4: Verify the Register
Check the target device’s Modbus map.
Confirm:
Function code
Register address
Number of registers
Data type
Scaling
Word order
This is where many “PLC communication problems” actually turn out to be incorrect device documentation or incorrect address interpretation.
Test 5: Monitor the Actual Frame
This is one of the most powerful troubleshooting techniques available.
LS ELECTRIC documentation describes the XG5000 frame monitor function for inspecting communication between client and server. For Modbus RTU, the frame can be viewed in hexadecimal format, allowing the engineer to inspect the actual transmitted and received data.
That changes troubleshooting from guesswork into evidence.
You can determine whether:
A. The PLC is not transmitting.
or
B. The PLC transmits but the device does not respond.
or
C. The device responds with an exception.
or
D. The device responds correctly but the PLC interprets the data incorrectly.
Those are four completely different problems.
LS Electric PLC Modbus Troubleshooting
Problem: No Response From the Device
Start with the physical layer.
Check:
Device power
Correct cable
RS-485 polarity
Port selection
Baud rate
Parity
Stop bits
Station address
Client/server configuration
Termination
If the PLC is transmitting but there is absolutely no response, focus on the remote device and physical configuration before rewriting the PLC program.
Problem: CRC Errors
CRC errors indicate that the received frame failed its cyclic redundancy check.
Common causes include:
Electrical noise
Incorrect baud rate
Poor cable
Incorrect termination
Long or improperly routed cable
Grounding problems
Reflections
Damaged transceiver
Incorrect serial settings
Do not treat CRC errors as a register-address problem. A bad register address normally produces a protocol-level response or exception, whereas corrupted serial data points toward the communication layer.
Problem: Timeout Errors
A timeout means the PLC expected a response but did not receive one within the configured period.
Potential causes include:
Wrong station number
Incorrect wiring
Device offline
Incorrect serial parameters
Wrong communication mode
Excessive polling
Network congestion
Device busy state
Incorrect request
A timeout is not proof that the PLC itself is defective.
Problem: Modbus Exception Response
If the remote device responds with a Modbus exception, that is actually useful information.
The device is alive and communicating.
The problem may instead be:
Illegal function
Illegal data address
Illegal data value
Unsupported operation
Device-specific exception
In other words, an exception response is often better than silence because it proves that the communication path is functioning.
Problem: Values Are Completely Wrong
Suppose the PLC receives:
16#0000
when the meter displays:
230.4 V
Do not immediately blame Modbus.
Check:
Register address
Scaling
Data type
Signed vs. unsigned interpretation
16-bit vs. 32-bit value
Floating-point format
Word order
Byte order
For a 32-bit value, two registers may need to be combined before conversion.
Problem: Values Are Correct but Appear Swapped
This usually points toward byte or word ordering.
For example, a 32-bit value may be transmitted as:
High Word → Low Word
while the PLC application expects:
Low Word → High Word
The result can be a wildly incorrect engineering value.
The solution is not to alter the Modbus connection. Correct the data interpretation.
RS-485 Wiring Best Practices for Modbus RTU
Reliable Modbus RTU communication depends heavily on the physical installation.
Use twisted-pair cable designed for RS-485 where practical.
Keep the bus topology controlled. Avoid unnecessary star configurations because reflections can degrade signal quality.
Keep communication wiring separated from high-power motor cables, contactor wiring, and VFD output cables.
Where required by the equipment and installation standard, use proper termination at the ends of the RS-485 network.
Also pay attention to shielding and reference/grounding practices specified by the equipment manufacturer.
A network that works perfectly on a workbench can become unreliable when installed beside several high-power VFDs.
This is why commissioning should test the system under actual operating conditions rather than only with the machine stopped.
Improving Modbus Performance
Communication that works is not necessarily communication that is engineered well.
Reduce Unnecessary Polling
Do not continuously request every register simply because it is available.
Group related registers together.
Instead of:
Read register 100
Read register 101
Read register 102
Read register 103
consider whether one request can read the complete contiguous range.
That reduces protocol overhead and improves scan efficiency.
Use Sensible Polling Intervals
A temperature value may not need to be updated every 10 ms.
A drive speed command may require substantially faster updating than a maintenance counter.
Match the polling rate to the process requirement.
Separate Critical and Non-Critical Data
Critical control data should receive priority over diagnostic information.
For example:
High priority: speed command, run command, fault state
Medium priority: current, voltage, process pressure
Low priority: maintenance counters, accumulated energy, historical values
This approach creates a more predictable communication system.
Building Reliable Communication Diagnostics
A professional PLC application should not merely exchange data. It should know whether the communication is healthy.
Useful diagnostic values include:
Communication enable
Request active
Response received
Timeout
Error code
Successful transaction counter
Failed transaction counter
Last successful transaction time
Device online status
A watchdog can also detect a stalled communication process.
For example, increment a successful transaction counter whenever valid data is received. If the counter does not change within the expected interval, set a communication alarm.
This is far more useful than displaying a generic “Modbus Error” message to the operator.
LS Electric PLC Modbus Communication With VFDs
One of the most common applications is connecting an LS Electric PLC to a variable frequency drive.
The PLC may control:
Run/stop
Forward/reverse
Frequency reference
Acceleration/deceleration parameters
Fault reset
And monitor:
Actual frequency
Output current
Motor voltage
Drive status
Fault code
Running state
The exact register map depends on the VFD model and firmware.
Do not copy register addresses from one LS drive series into another without checking the applicable manual.
The same principle applies when communicating with meters, temperature controllers, HMIs, and third-party PLCs.
Modbus Communication Security and Network Design
Modbus itself was designed primarily for industrial communication, not modern cybersecurity.
That means the network architecture matters.
For Modbus TCP, avoid placing control devices directly on an unrestricted corporate or internet-facing network.
Use appropriate network segmentation, industrial firewalls, VLANs, access controls, and managed switches where required by the application’s cybersecurity policy.
For Modbus RTU, physical access to the network should also be controlled because the protocol generally does not provide authentication or encryption.
Security becomes increasingly important when PLC communication is connected to SCADA, remote monitoring, cloud gateways, or enterprise networks.
A Practical LS Electric Modbus Commissioning Procedure
For a new installation, use this sequence.
Phase 1: Hardware
Confirm the PLC model, communication interface, cables, termination, device power, and communication module.
Phase 2: Protocol
Confirm Modbus RTU or TCP, client/server role, station address, IP configuration where applicable, and supported function codes.
Phase 3: Parameters
Match baud rate, parity, data bits, stop bits, and other serial parameters.
Phase 4: Register Map
Document every required register and identify its data type, scaling, and byte/word order.
Phase 5: XG5000
Configure the communication channel and P2P/Modbus parameters appropriate to the PLC architecture.
Phase 6: Physical Test
Verify wiring and network connectivity before debugging the application.
Phase 7: Frame Test
Use XG5000 diagnostics and frame monitoring where supported to confirm actual request and response frames. LS ELECTRIC specifically documents frame monitoring through its XG5000 diagnostic functions for Modbus communication.
Phase 8: Data Validation
Compare PLC values against the physical device display or diagnostic software.
Phase 9: Fault Testing
Disconnect the device and verify that the PLC correctly identifies a communication failure.
Phase 10: Production Test
Run the machine under normal operating conditions and verify communication stability under load.
This final step matters. A communication system that passes a five-minute bench test is not necessarily production-ready.
Common LS Electric Modbus Configuration Mistakes
The following mistakes appear repeatedly in commissioning work:
Using the wrong physical port.
The software configuration is correct, but the cable is connected to another channel.
Mixing RTU and ASCII.
Both are Modbus serial protocols, but their frame structures differ.
Incorrect station number.
The PLC sends requests to address 2 while the device is configured as address 1.
Incorrect register offset.
The engineer enters 40001 when the software expects the zero-based protocol address.
Ignoring data scaling.
The PLC receives 253 and displays 253°C instead of 25.3°C.
Ignoring word order.
A valid 32-bit value is assembled incorrectly.
Changing ladder logic before checking the wiring.
This wastes time and can introduce new errors.
Polling too aggressively.
The network becomes unnecessarily busy.
Failing to document the working configuration.
The next engineer has to reverse-engineer the system.
Good engineering prevents these problems before commissioning begins.
How to Document an LS Electric Modbus Network
Every production system should have a communication schedule.
A useful table contains:
| Device | Address/IP | Function | Register | Data Type | Scaling | Direction |
|---|---|---|---|---|---|---|
| VFD-01 | 1 | 03 | Speed | INT16 | ×0.1 | PLC Read |
| VFD-01 | 1 | 06 | Speed Cmd | INT16 | ×0.1 | PLC Write |
| Meter-01 | 2 | 03 | Voltage | UINT16 | ×0.1 | PLC Read |
| Temp-01 | 3 | 03 | Temperature | INT16 | ×0.1 | PLC Read |
This document becomes the single reference for commissioning, maintenance, troubleshooting, and future modifications.
It also makes replacement equipment much easier to integrate.
For organizations managing broader industrial automation and process control systems, this type of documentation is particularly important because PLC communication rarely exists in isolation.
Frequently Asked Questions About LS Electric PLC Modbus Communication
1. How do I configure Modbus RTU on an LS Electric PLC?
Configure the applicable serial communication channel in XG5000, select the appropriate Modbus RTU operating mode, configure the baud rate, parity, data bits, stop bits, station addressing, and client/server role, then configure the required Modbus requests or responses. The exact procedure depends on the PLC family and communication hardware.
2. Does LS Electric XGB support Modbus RTU?
Yes. Applicable XGB Cnet configurations support Modbus ASCII/RTU client and server operation. LS ELECTRIC documentation identifies RS-485 communication and Modbus functionality among the supported communication capabilities.
3. What baud rates can LS Electric XGB use for Modbus?
Applicable XGB Cnet configurations support baud rates including 1,200, 2,400, 4,800, 9,600, 19,200, 38,400, 57,600, and 115,200 bps. Always confirm the exact capabilities of the installed PLC and communication channel.
4. How do I troubleshoot an LS PLC Modbus timeout?
Check the physical connection first, then verify station address, baud rate, parity, stop bits, client/server configuration, function code, and register address. If the PLC is transmitting but receives no response, use XG5000 diagnostics or an appropriate protocol analyzer to determine whether the remote device is responding.
5. Why does my LS Electric PLC receive incorrect Modbus values?
Incorrect values usually result from register addressing, scaling, signed/unsigned interpretation, 32-bit data handling, byte order, or word order. Verify the remote device’s Modbus map before changing the communication configuration.
6. What is the difference between Modbus RTU and Modbus TCP on an LS PLC?
Modbus RTU normally uses serial communication such as RS-485, while Modbus TCP uses Ethernet and TCP/IP. RTU requires matching serial parameters and station addressing; TCP requires correct IP networking and Ethernet communication configuration.
7. How do I monitor Modbus frames in XG5000?
Where supported, use XG5000’s system diagnosis and frame-monitor functionality. LS ELECTRIC documentation states that Modbus RTU frames can be viewed in hexadecimal format, allowing transmitted and received data to be inspected directly.
8. Why does my Modbus device respond with an exception?
An exception generally means the device received the request but rejected it. Check the function code, register address, number of registers, and data value. This is different from a timeout because an exception proves that the communication path is active.
9. Can an LS Electric PLC communicate with a third-party Modbus device?
Yes, where the specific LS PLC communication hardware and firmware support the required Modbus implementation. The third-party device must also expose compatible Modbus functions, addresses, data types, and communication parameters.
10. What is the fastest way to diagnose LS Electric PLC Modbus communication?
Use a structured process: verify the physical layer, confirm communication parameters, check station/IP addressing, verify the Modbus function and register map, then inspect the actual request and response frames. XG5000 frame monitoring can significantly reduce troubleshooting time because it shows what is actually being exchanged rather than what the programmer assumes is being exchanged.
Final Takeaway
LS Electric PLC Modbus communication is straightforward when the system is engineered from the physical layer upward. The critical variables are the communication interface, protocol mode, client/server role, serial or Ethernet parameters, station addressing, register mapping, function codes, and data interpretation.
When communication fails, resist the temptation to immediately rewrite the PLC program. Start with the cable, port, parameters, addressing, and actual communication frames. Once the physical and protocol layers are proven, move upward into register mapping, scaling, data conversion, and application logic.
That approach turns Modbus troubleshooting from trial-and-error into a repeatable engineering process.
For engineers, integrators, maintenance teams, and procurement professionals working across broader industrial automation, PLC, and process control applications, reliable communication is not a secondary feature—it is part of the control system architecture. A properly configured LS Electric PLC with well-designed Modbus communications can provide dependable integration with drives, meters, instruments, HMIs, SCADA systems, and other automation equipment for years of service.
Technical note: LS ELECTRIC documentation and software versions change over time. Always verify the communication capabilities, register map, firmware requirements, and XG5000 procedure against the exact PLC, communication module, and connected device used in the installation. LS ELECTRIC currently provides XG5000 software and XGB/XGK documentation through its official documentation resources.
Recommended Automation Pioneer Resources
To deepen your understanding of industrial automation, critical factory infrastructure, and digital transformation, explore these related resources on Automation Pioneer:
- PLCs & Controllers
- LS Electric PLC
- LS Electric XGB PLC
- LS Electric XGK PLC
- LS Electric PLC programming
- XG5000 programming software
- LS Electric PLC Modbus
- LS Electric PLC Ethernet communication
- LS Electric PLC vs Siemens PLC
- LS Electric PLC HMI
- LS Electric PLC troubleshooting
These articles offer additional technical insights into the automation, networking, monitoring, and control technologies that support modern industrial automation and mission-critical infrastructure.
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