SMC EX122SPR1B (EX122-SPR1-B) - Serial Interface Unit, PROFIBUS DP

SMC EX122SPR1B Serial Interface Unit — PROFIBUS DP SI unit, 16 outputs. SMC EX122-SPR1-B is a PROFIBUS-DP serial interface (SI) unit for the EX120/121/122 reduced-wiring output system, controlling SMC manifold solenoid valves over PROFIBUS-DP (per IEC 61158 / EN 50170). It operates as a passive slave and drives 16 output points (max. 16 single or 8 double solenoids) with Minus (negative) common output at 24 VDC, max. 2.1 W per output. Baud rate is auto-detected up to 12 Mbit/s. Node address is set via two rotary switches (HW addressing) or via the bus protocol (SW addressing) using the appropriate GSD file. Bus connection is a 9-pin D-Sub; power is a 5-pin round connector with separate 24 VDC (+/-10%) supplies for electronics and valves. IP20 enclosure, operating temperature 0 to +50 C. CE marked. The EX122 housing mounts directly on SY3000/5000 manifolds.

MPN: EX122-SPR1-B · SKU: EX122SPR1B

EX122-SPR1-B Applications

Connects an SMC SY-series valve manifold to a PROFIBUS-DP network as a slave node, replacing individual valve wiring with a single bus cable to the PLC. The 16-output EX122-SPR1-B suits mid-size manifolds and is addressed by front rotary switches for quick commissioning. The IP20 housing is intended for panel or enclosure mounting. Integrate using the SMC GSD file matching the chosen addressing mode; auto baud detection simplifies setup across mixed-speed networks.

EX122-SPR1-B Specifications