I/O and power — what the ratings mean for a control cabinet
The TM218LDA16DRN draws from a 100-240 Vac supply (85-264 Vac including ripple) at 50/60 Hz — this universal input range lets it drop into a panel fed from either a 110 Vac or 240 Vac control transformer without a separate power module. On the input side you get 7 standard digital inputs plus 2 fast inputs that support high-speed counting (HSC) — the fast channels handle encoder or pulse-train signals without an add-on module. Outputs are 7 relay channels — rated for general-purpose switching of contactors, solenoid valves, or indicator loads; the relay type isolates the load side from the logic, which simplifies troubleshooting when a field device faults. Inrush current peaks at 30 A at 110 Vac and 60 A at 240 Vac — size the upstream circuit breaker and power supply transformer to handle this surge without nuisance tripping; the continuous output power is 25 W. Expansion capacity goes to 144 total I/O points across up to 4 expansion modules — the 7 relay outputs on the base unit can be extended to a maximum of 42 relay outputs across the full rack.
Sourcing and lifecycle — active, quoted to order
No official successor or replacement has been announced; the M218 series is the current-generation compact PLC family for standalone machine control.