SMC EX122SCS2 (EX122-SCS2) - Serial Interface Unit, CompoBus/S

SMC EX122SCS2 Serial Interface Unit — CompoBus/S SI unit, 8 outputs. SMC EX122-SCS2 is a serial transmission (SI) unit for the OMRON CompoBus/S network, part of the EX120/121/122 reduced-wiring output system for manifold solenoid valves. The SCS2 variant occupies 0 inputs/8 outputs (I/O occupation 32/32) and drives up to 8 solenoid valve points with Sink/NPN (positive common) output at 24 VDC, 2.1 W or less. Communication speed is 750 kbps. Control power supply 14 to 26.4 VDC; valve power 24 VDC +10%/-5%. Internal current consumption 100 mA or less. IP20 enclosure. Operating temperature 0 to 55 C (8 points ON) / 0 to 50 C (16 points ON). CE/UKCA marked. The EX122 housing mounts directly (without ribbon cable) for SY3000/5000 series manifolds.

MPN: EX122-SCS2 · SKU: EX122SCS2

EX122-SCS2 Applications

Used on SMC SY-series valve manifolds to control solenoid valves over an OMRON CompoBus/S serial network, cutting point-to-point wiring between a PLC and the manifold. The 8-output SCS2 variant suits smaller manifolds where a compact, low-cost reduced-wiring node is needed. Its IP20 rating targets in-cabinet or protected panel mounting rather than washdown environments. Set node address and fail-safe via switches; connect the CompoBus/S line and 24 VDC valve/control power.

EX122-SCS2 Specifications