Overview
The ATC 354 digital counter is a compact version of the larger 334 counter, offering identical functionality in a space-saving 72mm DIN housing. This Shawnee II high-speed digital predetermining counter occupies 25% less panel space while maintaining full performance capabilities. Built with solid-state design, the ATC 354 delivers reliable counting for cycle control, production monitoring, and timing applications across manufacturing and industrial automation sectors.
Key Features
- Four-digit display for cycle progress indication located immediately above digital setting number wheels
- Solid-state construction with computer-tested plug-in circuit boards and no moving parts in logic circuits, ensuring practically unlimited life expectancy
- True plug-in design and dust-tight from the front of panel
- 100% repeat accuracy at all rated speeds, even with contact bounce present
- Noise immunity eliminates false starts and reset due to voltage spikes in industrial environments
- Operates as repeat cycle pulse generator or in single-cycle interval/delayed mode with selectable control output options
Technical Specifications
- Model: ATC 354C Series (Shawnee II)
- Load relay life expectancy: 100,000,000 operations (no load)
- Contact bounce suppression: normal level eliminates false counts at speeds up to 500 per second with reed switch inputs
- Housing: 72mm DIN-size
- Count range: 1 to 9999 (or 10 to 99990 selectable)
- Display: Four-digit LED/mechanical readout
- Input type: DC pulse-compatible
- Output options: Standard SPDT relay or optional SPST solid-state switch module
Typical Applications
The ATC 354 is suited for machine tool cycle counting, packaging line monitoring, piece count verification, production batch control, and any application requiring accurate pulse counting with electrical isolation. The counter accommodates three types of start signals including isolated contact, DC voltage, and negative DC voltage inputs, making it adaptable to diverse control systems. Its noise immunity makes it ideal for environments with electrical transients or radio frequency interference.
Compatibility & Replacements
Compatible With
- Industrial control panels and DIN rail mount systems
- 24 VDC and 120 VAC input signal systems
- Standard industrial relay logic and PLC input modules
- DC pulse generators, proximity switches, and reed switches
Replaces / Drop-In Replacement For
- 354B directly replaces 354A models
- Previous generation Shawnee counters with equivalent specifications
Works With
- Relay logic control systems
- PLC input modules and discrete input cards
- Industrial automation control panels
- 24 VDC and 120 VAC power supplies




