NI cFP-22xx on-site integration and troubleshooting

Key wiring steps:

Place the ferrite magnetic ring (NI 711849-01) on the power cord 5-8 cm away from the controller end, wrap the wire around the magnetic ring twice (pass through twice), and close the magnetic ring.

Fix the ferrite with zip ties to prevent vibration displacement.

Connect the positive wire to V1 (or V2) of the COMBICON connector, and connect the negative wire to any C terminal.

Insert COMBICON into the front panel of the controller.

Important Warning:

The C terminals are interconnected internally and connected to the chassis. When using two power sources, it is necessary to ensure that they are grounded together.

If the input voltage is reversed, the positive voltage will be directly connected to the chassis. Although the controller is equipped with reverse polarity protection, unreliable chassis grounding may damage peripherals.

The torque of the power terminal screw is 0.5-0.6 N · m, and it is only allowed to be tightened in the power-off state.

Recommended minimum power supply: 15 W for cFP-BP-4 system and 20 W for cFP-BP-8 system. The controller itself consumes 6.1 W of power, plus an additional 1.1 W of power consumption for each I/O module.

The software can read the currently used power supply through the "Power Source" channel: a value of 0 indicates the use of V2, and a value of 1 indicates the use of V1. This is opposite to the definition of early Compact FieldPoint controllers.

Ethernet network configuration and dual port application

CFP-22xx provides at least one RJ-45 Ethernet port (Port 1), and cFP-2220 additionally provides a second independent network port (Port 2). The communication speed supports 10/100 Mbps adaptive, with a maximum line length of 100 m/segment.

First time configuring IP address:

Connect the PC and controller directly using a crossover cable (or through a switch).

Open NI Measurement&Automation Explorer (MAX) and discover the device under Remote Systems.

If the IP address is unknown or the controller is in factory state (IP 0.0.0.0), you can turn the IP RESET DIP switch to ON and restart. At this time, the controller will appear in MAX as 0.0.0.0, and then reassign the static IP or enable DHCP.

After configuration is complete, turn the IP RESET switch back to OFF.

Port 2 specific feature (cFP-2220 only): can be used to connect to a FieldPoint system on another private network. Static IP needs to be configured for the target system in MAX.

Grounding and shielding: To achieve EMC compliance (EN 61326 Class A), shielded Ethernet cables (CAT-5 or higher) must be used and the shielding layer must be well grounded at both ends.

Detailed wiring for serial communication (RS-232 and RS-485)

The number of serial ports varies for different models:

CFP-2200: 1 RS-232 (COM1, DB-9 male)

CFP-2210: 2 RS-232 (COM1 DB-9, COM2 10 bit modular jack)

CFP-2220: 3 RS-232 (COM1, COM2, COM3) and 1 RS-485 (COM4)

All RS-232 ports are DTE (Data Terminal Equipment), with a maximum baud rate of 115200 bps, supporting 5-8 data bits, 1-2 stop bits, parity check, and RTS/CTS flow control.

COM4 RS-485 features:

Four wire system (full duplex), can also be used for two-wire system (requiring software to process echoes).

Isolation voltage: Continuous 100 Vrms, withstand voltage 740 Vrms (5-second test).

Can be used for networking up to 24 FP-1001 terminal bases.

120 Ω terminal resistors must be installed at both ends of the network. NI provides a DIN rail mounting adapter (NI 778674-01) for easy connection of resistors.

The cable adapter (NI 182845-01/02/03, 1/2/3 m) is used to convert a 10 bit modular jack into a DB-9 plug.

RS-485 wiring (refer to Figure 27):

Connect the TXD+, TXD -, RXD+, and RXD - of the controller to the corresponding terminals of each FP-1001.

All devices must have a common ground.

Use a 120 Ω resistor in parallel at both ends of the bus, T+and T -, as well as R+and R -.

Detailed explanation of DIP switch functions (all switches default to OFF at the factory)

The front panel of cFP-22xx has 6 DIP switches, each with a specific purpose.

1. IP RESET

ON: After restarting, the IP address is reset to 0.0.0.0 and the lock state in MAX is released.

Normal operation: OFF.

Used to restore access when an IP address is forgotten or a controller is locked.

2. SAFE MODE

ON: Only basic services (software upgrades, configuration updates) are loaded at startup, and the LabVIEW Real Time engine is not started.

OFF (normal): Start the RT engine normally.

When the software on the controller is damaged or the memory needs to be formatted, it must be turned on and restarted.

3. NO APP

ON: Block any LabVIEW RT startup application from running.

OFF: Allow configured startup applications to run.

If you need to permanently disable self startup, you should disable it in LabVIEW instead of relying on this switch. But this switch is the quickest way to handle 'out of control startup applications'.

4. CONS OUT

ON: Output the IP address and firmware version of the controller through the serial port (connected to COM1 using the air conditioning modem cable). Serial port terminal settings: 9600 bps, 8 data bits, no parity check, 1 stop bit, no flow control.