Programmable ControllerKV-5000/3000 series


FL-net Unit


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General specifications

Power voltage

24 VDC ± 10% (supplied by the CPU unit)

Operating ambient temperature

0 to +50°C (no freezing)

Ambient storage temperature

-20 to +70°C

Operating ambient humidity

10 to 95%RH(no condensation)

Withstand voltage

Between the power supply terminal and the communication terminal: 1,500 VAC, between the external terminals and the case: 1,500 VAC

Noise resistance

1,500 Vp-p or more, pulse width: 1 μs, 50 ns (by way of a noise simulator), conforms to IEC standards (IEC 61000, 4-2/3/4/6)

Vibration resistance

Intermittent vibration

Frequency: 5 to 9 Hz

Half amplitude: 3.5 mm

Frequency: 9 to 150 Hz

Fixed acceleration: 9.8 m/s2

Continuous vibration

Frequency: 5 to 9 Hz

Half amplitude: 1.75 mm

Frequency: 9 to 150 Hz

Fixed acceleration: 4.9m/s2

Shock resistance

Acceleration: 150 m/s2, operating time: 11 ms, 2 times in each of the X, Y, and Z directions

Insulation resistance

50 MΩ or more (tested with a 500 VDC megger, between the power supply terminal and the I/O terminals and between all the external terminals and the case)

Operating environment

Minimal amount of dust and corrosive gas present

Operating altitude

2000m or less

Performance specifications

Transmission speed

10 Mbps (10BASE-T), 100 Mbps (100BASE-TX)

Transmission method



Conforms to IEEE802.3 (conforms to CSMA/CD)

Transmission protocol

UDP/IP FA link protocol

Maximum number of nodes


Amount of cyclic data

Maximum (8,000 bits + 8,000 words), system maximum (8,000 bits + 8,000 words), node

Message data amount

1,024 bytes maximum

Token frequency time

30 ms/32 nodes (when there are 2,000 bits + 2,000 words for all nodes)

Message transmission time

500 ms (1:1 one-direction message arrival time)

Token holding time

0.93 ms (when area 1 has 4 words and area 2 has 64 words)

Maximum cable length


Maximum number of connectable hubs

4 (10BASE-T), 2 (100BASE-TX)*2

Internal current consumption

80 mA or less


approx 120g

*1 The maximum cable length is the distance between the KV-FL20V and the Ethernet switch hub.
*2 When using the switch, there is no limit on the number of hubs that can be connected.

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