Overview
The EMS Escort Memory Systems CM1746 is an RFID interface module that integrates radio frequency identification systems into Allen-Bradley SLC 500 PLCs and 1746 I/O backplanes. This optically isolated communications interface enables fast data transfer between RFID tags, readers, and the host PLC, making it ideal for auto ID and material tracking applications.
Key Features
- 25 MHz i386 processor for high-speed RFID read/write operations
- Two RFID antenna ports for dual-channel reading and writing
- 512 KB Flash memory and 512 KB RAM
- Dual serial ports (COM1 and COM2) with configurable protocols
- Two industrial-level digital inputs/outputs
- LED status indicators for system monitoring
- NEMA 1 (IP30) rated enclosure
- DOS-compatible operating system with C-language programming support
Technical Specifications
| Processor | 25 MHz i386 |
| Internal Flash Memory | 512 KB |
| Internal RAM | 512 KB |
| RFID Antenna Ports | Two read/write antenna ports |
| Backplane Supply Voltage | 5 VDC ±5% |
| Backplane Current | 600 mA maximum |
| External Supply Voltage | 24 VDC ±15% |
| External Current | 125 mA average, 250 mA peak |
| Serial Port COM1 | RS232 (programming and debugging) |
| Serial Port COM2 | RS232, RS422, RS485 (Mux32 protocol) |
| Digital I/O | Two industrial-level inputs/outputs |
| Enclosure Rating | NEMA 1 (IP30) |
| Mounting | Direct mount to 1746 I/O chassis |
| Compatible Models | SLC 5/03, SLC 5/04 |
Typical Applications
- Automatic material identification and sorting systems
- Warehouse and inventory management automation
- Manufacturing process tracking and data collection
- Product serialization and traceability
- Assembly line work-in-progress (WIP) monitoring
- Pallet and container tracking in distribution centers
- Quality control and defect logging systems
Compatibility & Replacements
Compatible With
- Allen-Bradley SLC 500 PLCs (SLC 5/03, SLC 5/04)
- 1746 I/O backplane and chassis
- RFID tag readers and antennas
- RS232 and RS422 serial host devices
- Mux32 multidrop RS485 networks
- Standard C-language development tools
Replaces / Drop-In Replacement For
- Original EMS Escort Memory Systems CM1746 units
- Legacy RFID interface modules for SLC 500 platforms
Works With
- Allen-Bradley RSLogix 500 programming software
- EMS RFID controller firmware and Mux32 protocol
- Serial communication protocols (RS232, RS422, RS485)
- Industrial RFID tag standards
- DOS-based operating systems and C language programming
