Acromag's PMC424 digital I/O module provides 24 differential input/outputs, 16 TTL input/output channels, and four 16-bit multi-function counter/timers.
The 16 TTL input/output channels can be programmed as an input or an output on a channel basis. The 24 differential input/output channels are programmed as inputs or outputs on an 4-channel port basis. All input channels can be enabled for change of state, low, or high level transition interrupts.
Four 16-bit multifunction counters/timers can be configured for pulse width modulated output, watchdog timer, event counter, frequency measurement, pulse width measurement, period measurement, or one shot pulse output. The four 16-bit counters can also be configured into two 32-bit counter/timers.
Features
- 40 digital input/output channels:
• 24 differential input/outputs
• 16 TTL input/output channels (15 ch. for 424R)
- Programmable change of state/level interrupts
- Input signal filtering debounce logic
- Four 16-bit or two 32-bit counter/timer channels (control lines shared with 16 TTL I/O channels)
- Six operating modes:
• Pulse width modulation
• Watchdog timer
• Event counter
• Frequency measurement
• Pulse width or period measurement
• One-shot and repetitive one-shot
- TTL-compatible thresholds
- Power-up and system reset are failsafe
- Operating Temperature 0...+70°C (PMC424, PMC424R) or -40...+85°C (PMC424E, PMC424CC)
Ordering Options
| Manuf. Part No | | Part Description |
| PMC424 | | Digital Input/Output Module, 24 differential I/O, 16 TTL I/O, 0...5 VDC input range, 0...5 VDC output range, four 16-bit counters or two 32-bit counters with front I/O connector |
| PMC424E | | Digital Input/Output Module, 24 differential I/O, 16 TTL I/O, 0...5 VDC input range, 0...5 VDC output range, four 16-bit counters or two 32-bit counters with front I/O connector plus extended temperature range (-40...+85°C) |
| PMC424R | | Digital Input/Output Module, 24 differential I/O, 15 TTL I/O, 0...5 VDC input range, 0...5 VDC output range, four 16-bit counters or two 32-bit counters with rear I/O connector |
| PMC424CC | | Digital I/O and counter/timer module, plus extended temperature range (-40...+85°C) and conduction-cooled with rear I/O connector. |
Accessories
| Manuf. Part No | | Part Description |
| 5025-288 | | Termination panel, DIN rail-mount, 68-pole screw terminals, SCSI-3 connector |
| 5028-432 | | Shielded cable, SCSI-3 68-pin connector, 1,8 m (6 feet) long |
| APC-PMC | | PCI bus carrier board, holds one PMC module (half length |
| Conformal Coating | | Protective coating layer applied to board |
Software
| Manuf. Part No | | Part Description |
| PMCSW-API-VXW | | VxWorks® software support package |
| PCISW-API-WIN | | Windows® DLL Driver software package |
| PCISW-API-LNX | | Linux™ support (website download only) |
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