The TM200C32U: The transistor outputs have overload and short-circuit protection at 3.8 A, so if a solenoid on the line hangs up, the PLC clamps it without a separate fuse. The protection is per the package, not per channel. Four high-speed inputs (I0, I1, I6, I7) run quadrature encoders at 100 kHz – enough for a basic position loop on a conveyor or spindle. The HSC mode handles pulse/direction, CW/CCW, or single-phase counts. Real-time clock backed by a BR2032 lithium cell holds for three years at 25 °C. Clock drift ≤90 s/month – tight enough for daily batch timers, not a time-of-day billing system.
Mounting and wiring
Mounts on a TH35-15 DIN rail (IEC 60715) with a footprint 175 mm wide, 90 mm tall, 70 mm deep – fits a standard shallow panel. Removable screw terminal blocks let you pre-wire the field harness and clip it on later. Front USB Mini-B for programming – no proprietary adapter, every van has one. The serial port does Modbus RTU up to 115.2 kbit/s. If you're tied into a Modbus network, the default baud rate wires straight in. Insulation between input groups and internal logic is 500 V AC/DC – that means you can run mixed sensor supplies (24 V and 12 V) on different groups without potential isolation issues. Avoids that extra isolation relay.
Sourcing and service
Current production from Schneider. No PCN, no end-of-life horizon. You can slot this into your BOM as a standard line item without worrying about a forced last-time-buy. CE marked, compliant with IEC 61131-2 (PLC standard) and IEC 61010-2-201 (safety for measurement/control). That's enough for most machine builders' quality doc packs – the nameplate carries the declarations. On the power side: inrush current 35 A, but the supply input is protected against overload and short at 3.8 A. The 24 V DC input is fused internally – one less thing to spec on the drawing.