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Automation and SCADA planning guide

When a Managed Industrial Ethernet Switch Makes Sense for Automation and SCADA

Start with the network requirement, not the feature list. Port count, PoE load, VLANs, monitoring, fibre topology and recovery requirements should all be confirmed before a managed switch is selected.

ERAITOK application guide · Updated 14 September 2026

The short answer

Use management functions only when the project calls for them

A managed industrial Ethernet switch is worth reviewing when the network design needs configurable VLANs, status monitoring, access controls, traffic management or a supported resilient-ring method. An SFP fibre uplink by itself does not make a switch managed. The final choice still depends on the complete topology, power, environment and project approval requirements.

Six project checks

Define the network before comparing models

CHECK 1

Connected equipment

List every Ethernet endpoint, identify which devices require PoE and allow for any planned spare ports.

CHECK 2

Network separation

Confirm whether cameras, controllers, operator stations or other traffic must be separated with configurable VLANs.

CHECK 3

Monitoring

Define the status and diagnostic information the project expects to collect through SNMP, the web interface or other listed management methods.

CHECK 4

Fibre topology

Confirm the number of SFP links, fibre type, compatible SFP modules and whether the network is point-to-point, a chain or a ring.

CHECK 5

Recovery requirement

Use the project topology and recovery target to decide whether STP, RSTP or ERPS ring protection is required.

CHECK 6

Site boundary

Check DC power, PoE load, cabinet protection, temperature and every project-specific approval before ordering.

Managed model comparison

Compare managed models with eight or sixteen PoE ports

The summary below is for initial selection. Review the complete English datasheet and confirm the project configuration before ordering.

IES-2F8E-P-M2 managed industrial PoE switch product photograph

IES-2F8E-P-M2

Interfaces
8 × Gigabit PoE+ RJ45 and 2 × 1000Base-X SFP
PoE capacity
Up to 240 W total PoE budget
Listed functions
VLAN, IGMP, QoS, LLDP, IEEE 802.1X, DDM, IPv6, Web, SNMP, Telnet and TFTP; STP/RSTP; ERPS recovery time of 20 ms or less

Review this model when eight PoE ports, two SFP slots and Layer 2 management are required.

View IES-2F8E-P-M2
IES-4F16E-P-M2 managed industrial PoE switch product photograph

IES-4F16E-P-M2

Interfaces
16 × Gigabit PoE+ RJ45 and 4 × 1000Base-X SFP
PoE capacity
Up to 240 W total PoE budget
Listed functions
USB zero-touch configuration and software upgrades; DI/DO, RS485 and Modbus support; G.8032 ERPS below 20 ms; IPv4/IPv6 static routing and DHCP Server

Review this model when the project needs higher port density, four SFP slots or the listed industrial I/O and network functions.

View IES-4F16E-P-M2

The total PoE budget still matters

Both models list a total PoE budget of up to 240 W. The connected-device load, the switch's own consumption and the external DC supply must be checked together; the number of PoE ports alone does not confirm that every connected load can be powered at its maximum value.

Review PoE power budget and DC supply planning →

Product capability

What the listed functions can help with

  • Separate selected traffic with configurable VLANs where supported.
  • Monitor supported device and network information through the listed management methods.
  • Use the listed spanning-tree or ERPS functions when they match the approved topology.
  • Connect the specified number of copper and fibre interfaces shown in the datasheet.

Project boundary

What still requires system-level confirmation

  • SCADA software and protocol interaction beyond the model's listed functions.
  • Cybersecurity architecture, user policy and project-specific hardening requirements.
  • SFP, fibre, controller and upstream-network interoperability.
  • Environmental protection, certifications and approved-vendor requirements for the project.

Common selection questions

Short answers before model selection

Does an SFP-equipped industrial switch automatically provide management functions?

No. SFP slots accept compatible fibre transceivers; they do not determine whether the switch is managed. IES-2F8E-P has two SFP slots without configurable Layer 2 management, while IES-2F8E-P-M2 adds the listed managed functions.

When is a managed switch worth considering?

Consider a managed model when the design calls for configurable VLANs, network monitoring, traffic controls, access controls or a supported resilient-ring method. A simple isolated network may not need those functions.

Does Modbus support confirm compatibility with the complete SCADA system?

No. Modbus support is listed for IES-4F16E-P-M2, but the system integrator must still confirm protocol use, topology, software interaction, cybersecurity requirements and project approvals.

Can these IP40 switches be installed directly outdoors?

No. IP40 is not an outdoor-weather rating. Rain, dust ingress or exposed installations require a suitable protective enclosure and a separate environmental review.

Related planning guide

Selecting a switch for a protected security network?

Read the security selection guide