The ABE7S16E2M0E is a solid state input relay sub-base from the Modicon ABE7 range, providing 16 input channels that accept 230/240 V AC from the sensor side and interface with a 24 V DC PLC end. It is designed to isolate field sensors from the controller, with a response time of ≤ 20 ms from state 1 to 0.
The sensor end is rated for 230/240 V AC 50/60 Hz, with a guaranteed state 1 voltage of ≥ 164 V and a state 0 current of ≤ 4.5 mA. This means it reliably detects a '1' signal from standard 230 V AC sensors (e.g., proximity or photoelectric) even with line voltage sag, and a '0' when the sensor leakage is below that threshold. The PLC end operates on 19...30 V DC, with a maximum switching current of 15 mA and a minimum of 1 mA, so it can drive a standard 24 V DC input module without overloading it. Each channel is limited to 0.008 A, and the PLC end has an internal 1 A fast-blow fuse (5 x 20 mm) for protection. An external fast-blow fuse on the sensor end is adjustable per the installation. Compliance with IEC 61131-2 Type 1 means the inputs are designed for 3-wire proximity sensors and similar devices, with defined thresholds for state 0 and state 1. Pollution degree 2 (IEC 60664-1) and installation category II suit it for clean, controlled environments like a panel interior, not for direct outdoor or wet-area mounting.