KEYENCE KV-DN20 DeviceNet® Unit

Type

DeviceNet® unit

Communication protocol

Compliant with DeviceNet®

Transmission specification

Transmission rate

500 kbps, 250 kbps, 125 kbps

Transmission media

5 dedicated cables (2 for signal system, 2 for power, 1 for shield line)

Connection topology

Multidrop method

Maximum cable length

Thick main cable 500 m (Transmission speed 125 kbps), 250 m (Transmission speed 250 kbps), 100 m (Transmission speed 500 kbps)
Thin main cable 100 m (All transmission speeds)

Maximum number of nodes

64 (including master, slave, configurator)

Master mode

Connected pieces per network

Max. 64

Type of communication

I/O communication (Poll/Bit-Strobe/COS/Cyclic), Explicit message communication

Type and size of assigned devices

Relay or data memory (indicated per block)
Max. size (per block) [For relaying: Input 64 ch, Output 64 ch, For data memory: Input 200 words, Output 200 words] × 2 blocks

Assignment method of device

Auto configuration (Fixed or assigned with front end) and manual assignment

Slave connection pieces per unit

Max. 63

Maximum number of I/O per slave

Input: 2048 points (128 words), Output: 2048 points (128 words)

Data length of message communication

Sending: 106 bytes, receiving 110 bytes

Slave mode

Connected pieces per network

Max. 64

Type of communication

I/O communication (Poll), Explicit message communication

Type and size of assigned devices

Relaying or data memory
Max. size [For relay: Input 64 ch/Output 64 ch, For data memory: Input 128 words/Output 128 words

Internal current consumption

Internal circuit: 24 VDC 45 mA or less (supplied by CPU unit)
Communication circuit: 24 VDC 25 mA or less (supplied by communication connector)

Weight

Approx. 150 g