SMC Networks EX260 Series

Questions and Answers

J
John SanchezAug 1, 2025
What to do if all valves and valve LEDs are not operating on SMC Networks Control Unit?
- R
  Robert ValdezAug 1, 2025
  If all valves and valve LEDs are not operating on your SMC Networks Control Unit, there could be a few reasons. First, check for any loose screws connecting the SI unit and the valve manifold. Second, ensure the solenoid valve common specification matches the output polarity of the SI unit. Finally, the solenoid valve itself may be defective, in which case you should follow the troubleshooting steps for the solenoid valve.
X
xgoodAug 4, 2025
Why valves do not work but valve LEDs are operating on SMC Networks Control Unit?
- C
  Carlos TurnerAug 5, 2025
  If the valves on your SMC Networks Control Unit aren't working but the valve LEDs are, it might be due to a polarity mismatch between the solenoid valve and the SI unit output. Verify that the solenoid valve common specification matches the output polarity of the SI unit.
R
Randall RichardsonAug 9, 2025
How to troubleshoot SI unit PWR LED OFF on SMC Networks Control Unit?
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  Raven ClarkAug 9, 2025
  If the SI unit PWR LED is off on your SMC Networks Control Unit, it could be due to a defective power cable wiring. Check the condition of the power cable wiring to the SI unit. It could also be that the SI unit is not receiving the correct operating voltage. Ensure that 24 VDC ±10% is supplied to the SI unit.
J
Jennifer RiceAug 13, 2025
What to do if SI unit PWR(V) LED is OFF on SMC Networks Control Unit?
- B
  bryan50Aug 13, 2025
  If the SI unit PWR(V) LED is off on your SMC Networks Control Unit, the power cable wiring for the solenoid valve may be defective. Check the condition of the power cable wiring for the valve. Alternatively, the load voltage for the valve may not be supplied. Ensure that 24 VDC +10%/-5% is supplied to the valve.
D
derrick55Aug 17, 2025
Why SI unit L/A IN LED is OFF on SMC Networks Control Unit?
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  victoriahansonAug 17, 2025
  If the SI unit L/A IN LED is off on your SMC Networks Control Unit, it could indicate a failure in the connection to the upstream device. Check the condition of the upstream device. Also, inspect the L/A IN side bus cable wiring for any breaks. Ensure there are no noise sources or high voltage lines near the bus cables, and verify the ground terminal connection.
C
Colin HendrixAug 21, 2025
How to fix SI unit RUN LED off on SMC Networks Control Unit?
- R
  Raymond ClarkAug 22, 2025
  If the SI unit RUN LED is off on your SMC Networks Control Unit, it means the SI unit is in the INIT state. To resolve this, check that the EtherCAT master configuration setup for the SI unit matches the actual set up of the SI unit.
J
Juan WilliamsAug 27, 2025
What does SI unit L/A IN LED Stay Green mean on SMC Networks Control Unit?
- K
  Kelly RobertsAug 27, 2025
  If the SI unit L/A IN LED stays green on your SMC Networks Control Unit, it could be due to no communication with the EtherCAT master. Check the condition of the EtherCAT master and the upstream device. Also, re-tighten the bus cable and check for any noise sources or high voltage lines around the bus cables.

Summary

Safety Instructions

Hazard Level Indicators

Explanation of CAUTION, WARNING, and DANGER hazard levels.

General Safety Precautions

Key safety instructions for product operation and maintenance.

Special Application Conditions

Conditions requiring special safety consideration for product use.

Warranty and Compliance

Limited Warranty Details

Terms and conditions of the product's limited warranty.

Compliance Requirements

Guidelines related to product use and export regulations.

Operator Guidance and Safety

Operator Qualifications

Intended audience and required knowledge for product operation.

Critical Safety Warnings

Essential warnings related to product operation and maintenance.

Critical Safety Cautions

Important cautions for safe product usage and handling.

Product Notes and Handling

General Product Notes

Important notes for product design, selection, and installation.

Product Specifications Overview

Key specifications and compliance information for the product.

Product Handling Guidelines

Installation Best Practices

Guidelines for proper physical installation of the SI unit.

Wiring Best Practices

Guidelines for correct electrical wiring and connections.

Environmental Considerations

Selecting the right protection for operating environments.

Product Operation and Maintenance

Environmental Operating Limits

Guidelines for product placement and operating environment.

Operation and Adjustment

Procedures for setting and operating the product correctly.

Maintenance Procedures

Steps for performing product maintenance and cleaning.

Model Identification

Model Numbering and Output Specs

Details on product model codes and output specifications.

Product Components and Accessories

Product Element Identification

Labeled components of the SI unit and their descriptions.

Included Accessories List

List of accessories provided with the SI unit.

Installation and Wiring Overview

SI Unit Installation and Dimensions

Physical installation details and dimensions for the SI unit.

Fieldbus Interface Wiring

Fieldbus Connector Pinouts

Pin assignments for BUS IN and BUS OUT fieldbus connectors.

Fieldbus Connection Notes

Important notes on seal caps for IP67 protection.

Power Supply Wiring

Power Supply Connector Pinouts

Pin assignments for the M12 power supply connector.

Power Supply Configurations

Options for connecting single or dual power supplies.

Grounding Requirements

Ground Terminal Connection

Procedure and resistance requirements for grounding the SI unit.

LED Status Indicators

LED Status Meanings

Interpretation of LED indicators for system status and errors.

Switch Settings

IP Address Setting via Switches

Using rotary and DIP switches to set the IP address.

HOLD;CLEAR Switch Function

Functionality of the HOLD/CLEAR DIP switch for output control.

IP Address Configuration Modes

Remote Control Mode

Configuring IP address via BOOTP/DHCP server.

DHCP Mode Configuration

Enabling DHCP for automatic IP address assignment.

Manual IP Address Setting

Manually setting the IP address within a specified range.

Hardware Configuration

EDS File Requirements

Information on the Electronic Data Sheet (EDS) file.

RSLogix5000 Initial Setup

Steps to add the SI unit in RSLogix5000 configuration.

RSLogix5000 Configuration Steps

Selecting Generic Ethernet Module

Choosing the correct Ethernet module type in RSLogix5000.

RSLogix5000 Module Properties

Configuring Module Parameters

Setting module name, IP address, and connection parameters.

Network Configurator Setup

Adding SI Unit to Network

Drag and drop SI unit into the network window and input IP address.

Network Configurator Device Management

Registering SI Unit Device

Moving the SI unit from the unregister list to the register list.

Network Configurator Connection Setup

Configuring Input;Output Connections

Setting up exclusive owner and tag sets for connections.

Network Configurator Tag Set Mapping

Example Tag Set Configuration

Illustrates mapping input and output tag sets.

Network Configurator Finalization

Verifying Network Configuration

Confirming successful SI unit registration in the network window.

Output Mapping and Assignment

Solenoid Output Data Structure

Format of output data for solenoid valves.

Output Area Mapping Details

Mapping of output bits to solenoid positions for different series.

Troubleshooting Guide

Malfunction Diagnosis Flowchart

Step-by-step guide to identify product malfunctions.

Fault Resolution Steps

Faults 1-5 Troubleshooting

Resolving initial faults based on LED status and probable causes.

Fault Resolution Steps (Continued)

Faults 6-11 Troubleshooting

Resolving further faults based on LED status and probable causes.

Fault Resolution Steps (Continued)

Faults 12-13 Troubleshooting

Resolving final faults related to valve operation and LEDs.

SI Unit Maintenance Procedures

SI Unit Replacement Guide

Steps for removing and replacing the SI unit from the valve manifold.

Maintenance Precautions

Key safety and handling precautions during maintenance.

SI Unit Assembly and Disassembly

Instructions for SI unit physical assembly and disassembly.

Product Technical Specifications

General Specifications

Environmental and physical specifications of the SI unit.

Electrical Specifications

Electrical properties and power requirements of the SI unit.

Communication and Connectivity Specs

Communication Specifications

Details on communication protocols, medium, and topology.

Connectable Valve Series

List of compatible valve manifold series.

I;O Data Mapping

Input Area and Status Mapping

Mapping of input signals and status indicators.

Output Area Mapping Details

Mapping of output signals to solenoid controls.

Physical Dimensions

SI Unit Dimensions and Notes

Dimensional drawings and installation connector size notes.

Available Accessories

Connector Cables and Specifications

Details on compatible cables and connectors for the SI unit.

Seal Cap Usage

Information on the seal cap for connector protection.

Document Information

Revision History

Record of changes made to the document text.

Company Contact Information

Contact details for SMC Corporation.