Model: CFP-DI-304
National Instruments cFP-DI-304 digital input module
Settings:
• (32) input channels
• Input range: 10 to 30 VDC
• Input type: Below
The cFP-DI-304 (Part number: 777318-304) is a digital input module developed by National Instruments for the compact FieldPoint. This module is used to monitor the voltage level of the signal. The module is compatible with cFP devices. The module is connected to the Compact FieldPoint backplane. cFP-DI-304 provides isolation between modules. This feature protects the compact FieldPoint system/controller from high voltages. The cFP-DI-304 is mainly used to monitor the closure of limit switches, power circuits and relays. The module is also compatible with TTL devices.

The cFP-DI-304 digital input module has 32 digital input channels. The impedance of the digital input is 30 kΩ. The input channel of the module is perfusion current type. The module works from 0 to 30 VDC. In addition, the device has 2 analog output channels. The National Instruments cFP-DI-304 provides 250 Vrms continuous isolation between its channel and backplane. However, cFP-DI-304 channels are not isolated from each other. This model can withstand transient voltages of 2300 Vrms for 5 seconds. The cFP-DI-304 has an indicator light on each input channel. The input module has two additional indicators for the POWER and READY states. All these lights are green. The module is powered by a network module. The power required for the cFP-DI-304 is 1 watt.
The cFP-DI-304 module is compatible with modules with a 24 VDC power supply. To protect the module from damage, the cFP-DI-304 is equipped with a current limiting function. The module can update all channels at a rate of 1 kHz. The complete data throughput is based on network speed and software. Equipment should be externally calibrated at least once a year. It is equipped with a 68-bit VHDCI female I/O connector.