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BLASI – SPS SAIA PCD3.M3120 Slave

Name: BLASI - SPS SAIA PCD3.M3120 Slave - MaceGulf
SKU: BLSP-8500037

BLASI – SPS SAIA PCD3.M3120 Slave is a compact Saia‑Burgess programmable logic controller (PLC) module used as a remote I/O or field controller in BLASI automatic‑door and barrier systems. The PCD3.M3120 is a CPU‑type module with integrated Ethernet TCP/IP, 64 I/O points, and 128 kB program memory, operating at 24 VDC and mounted on standard DIN rail. In BLASI applications it normally acts as a “slave” station, communicating with a higher‑level BLASI‑SAIA or third‑party master via fieldbus or Ethernet while handling local door logic, safety, and actuator control.

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The BLASI‑labeled SPS SAIA PCD3.M3120 Slave is a Saia PCD3 series PLC module configured as a peripheral node within BLASI gate or door‑control networks. It is powered by 24 VDC (−20/+25%) and typically draws around 15 W, with an internal 5 V/24 V rail providing up to about 600 mA/100 mA for local modules and I/O cards. The PCD3.M3120 base module includes 64 programmable inputs and outputs (combining digital I/O and optional fieldbus‑connected modules) and runs programs written in the Saia PCD language or compatible IEC languages, stored in 128 kB of program memory.

In BLASI plants this SPS SAIA PCD3.M3120 Slave is usually connected to the central BLASI control or building‑management system via Ethernet TCP/IP or a fieldbus such as Profibus‑DP or Saia Profi‑S‑Net, acting as a subordinate node that executes local safety logic, door‑timing sequences, and status feedback. The module supports multiple serial interfaces (RS‑485 on the terminal block, etc.) and can interface with BLASI‑brand sensors, light‑curtains, drives, and interlocks through its I/O modules. By using the BLASI – SPS SAIA PCD3.M3120 Slave, BLASI installations gain a compact, DIN‑rail‑mounted, programmable subsystem that handles distributed door‑control tasks while keeping communication with the main controller fast, reliable, and compatible with Saia‑based automation architectures.

Article No: 8500037