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AutomationDirect EA3-S3ML

The EA3-S3ML is a C-more Micro EA3 series touch screen HMI panel from AutomationDirect. It has a 3 in monochrome STN LCD with a 128 x 64 pixel resistive single-touch screen and LED backlight, and communicates over one Ethernet port, two serial ports and one microB-USB port. It mounts in a panel cutout and is programmed with EA-MG-PGMSW software.

Source checked9/9 values · 2026-10-26AutomationDirectHMI
Screen size
3in
IP rating
IP65
Weight
0.3175kg

Specification

2 sources
Categoryhmi
Supply voltage5 VDC, 12-24 VDC
Resolution128 x 64 pixel

Quick answers

How much does the AutomationDirect EA3-S3ML weigh?
0.3175 kg, per C-more Micro HMI: 3in, monochrome STN LCD, touch screen (PN# EA3-S3ML) | AutomationDirect (automationdirect.com).
What is the IP rating of the AutomationDirect EA3-S3ML?
IP65, per C-more Micro HMI: 3in, monochrome STN LCD, touch screen (PN# EA3-S3ML) | AutomationDirect (automationdirect.com).

Study notes

  • Viewable size is 3.1 in; display orientation is landscape; maximum colours are 12-colour monochrome at 150 nits brightness.
  • Ports: (1) Ethernet 10/100Base-T (RJ45), (1) RS-232 (RJ12), (1) RS-232/422/485 (DB15 female), (1) microB-USB.
  • Port speeds: up to 38.4k baud serial and 10/100 Mbps Ethernet.
  • Supported port protocols include Allen-Bradley DF1 full/half duplex, DH485/AIC/AIC+, AutomationDirect CLICK, DirectLOGIC K-Sequence and DirectNET, Do-more/BRX, ECOM, GS drives, Productivity, SOLO temperature controller, GE SNPX, Mitsubishi FX Direct, Mitsubishi Q, Mitsubishi QnA Ethernet, Omron FINS serial, Omron Host Link and Siemens S7-200 Serial-PPI.
  • Programming software is EA-MG-PGMSW; the spec table states v4.2 or later while the product notes state version 4.1 or later.
  • Programming requires a USB A to Micro B cable or an Ethernet cable; the panel can be powered from the serial port of most AutomationDirect PLCs or from the USB port during programming.
  • The EA3 series does not support the EA-MG-SP1 or EA-MG-P1 option modules.
  • Backlight colour is selectable: red, green, amber, yellow, lime, pink1, pink2, pink3, emerald1, emerald2, emerald3 and white.
  • Ship weight 0.7 lb; country of origin Japan; HS code 8471.30.
  • Box contents: panel, quick start guide, DC power connector (EA-MG-DC-CON), gasket (EA-MG-S3ML-GSK) and two mounting brackets (EA-MG-S3ML-BRK).

Safety

  • UL Listed, file # E157382.
  • CE marked; RoHS compliant.
  • No UL Recognized, UL Hazardous or CSA file listed.
  • Housing rating NEMA 4/4X and IP65, panel mounting.
  • Environmental requirement: indoor use only.
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