The National Instruments FP-1001 connects a FieldPoint I/O bank to an RS-485 network. Its isolated serial interface communicates with a host computer or an FP-1000 repeater port.
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Key product information and technical features.
The FP-1001 is the serial network interface for a FieldPoint bank, rather than a measurement I/O module. Its built-in supply regulates external DC power for the attached I/O modules.
NI documents a nominal host cabling distance of 4,000 ft for the FP-1001, subject to the RS-485 installation requirements in the user manual. Each bank supports up to nine terminal bases.
Verified product specifications.
| Network ports | 1 RS-485 port |
|---|---|
| Selectable baud rates | 300, 1200, 2400, 9600, 19200, 38400, 57600, 115200 baud |
| Serial format | 1 start bit, 8 data bits, 1 stop bit, no parity |
| Communication integrity | Checksum |
| Input supply range | 11–30 VDC |
| Power consumption | 1 W + 1.15 × sum of I/O module power requirements |
| Maximum terminal bases per bank | 9 |
| RS-485 isolation breakdown voltage | 2300 Vrms |
| Operating temperature | −40 to 70 °C |
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Manufacturer
Modular I/O platform
RS-485 network interface
Direct RS-485 host connection or connection through an FP-1000 RS-485 repeater port.
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Product-specific answers based on available technical information.
The FP-1001 has one RS-485 port. The FP-1000 has an RS-232 port and an RS-485 repeater port.
NI documents up to 25 FP-1001 modules on one host RS-485 port, or up to 24 connected to an FP-1000 repeater port.
Use an 11–30 VDC supply. NI recommends at least 15 W for up to five I/O modules and 20 W for six to nine; check individual module requirements.