Rockwell / Allen-Bradley 1745-TCAT Timer / Counter Access Terminal

The Rockwell/Allen-Bradley 1745-TCAT is a Timer/Counter Access Terminal engineered for real-time monitoring and modification of timer, counter, and sequencer data on SLC 100 and SLC 150 programmable logic controllers without interrupting PLC operation. The terminal operates in both handheld and panel-mounted configurations, delivering immediate access to critical control parameters across manufacturing automation and process control systems.

– Technical Specifications

• Product Type: Timer/Counter Access Terminal (TCAT)
• Manufacturer: Rockwell / Allen-Bradley
• Series: Bulletin 1745
• Compatible Controllers: SLC 100, SLC 150
• Display: LED status display, 4-character digital data display, 3-character digital address display, 7-segment LED readouts, discrete light-emitting diodes
• Input Interface: 16-button push-button keypad
• Security: 2-position keylock switch with protective cover
• Operating Modes: Monitor and modify
• Data Access: Real-time access to programmed timer, counter, and sequencer parameters
• Power Connection: 6 ft. (1.8 m) interconnected cable
• Error Reporting: Bilingual error code table (English and French) with keyring ID tag for error documentation
• Status Indicators: PROTECT indicator, instruction indicators, data indicators

– Key Features

• On-line monitoring and modification of timers, counters, and sequencers without system interruption
• Dual mounting options: handheld operation or panel-mounted installation
• Direct plug-in connection via mating connectors to SLC controller processor units
• NEMA Type 12 and 13 enclosure compatibility; IEC 529 IP65 rated
• Lightweight design at 0.88 lbs. (0.43 kg) for portable operation
• Optional remote communication kit (Catalog No. 1745-N2) supports installations up to 100 ft. from controller

– Typical Applications

• Manufacturing automation systems requiring operator control of timing sequences
• Process control installations with real-time parameter adjustment capabilities
• Supervisory monitoring in automated production environments

– Compatibility & Integration

Direct connection to Allen-Bradley SLC 100 and SLC 150 PLCs via plug-in connectors. Remote installations utilize the optional 1745-N2 remote communication kit for extended distances up to 100 ft. between terminal and controller.