Programmable ControllerKV-5000/3000 series

KV-L21V

Serial Communication Unit

SPECIFICATIONS

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Model

KV-L21V

Unit type

Communication network unit

Communication characteristics

Max. 230 kbps, 2 ports (RS-232C port × 1, RS-232C/422A/485 port × 1)

Characteristics

PROTOCOL STUDIO support, Modbus master/slave function

Direct refresh support

International standards

UL, CE

Transmission speed

1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400 bps

Internal current consumption

120 mA or less

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*1

Frequency: 9 to 150 Hz

Fixed acceleration: 9.8 m/s2*1

Continuous vibration

Frequency: 5 to 9 Hz

Half amplitude: 1.75 mm*1

Frequency: 9 to 150 Hz

Fixed acceleration: 4.9m/s2*1

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

Overvoltage category

II

Pollution degree

2

Serial communication specifications

Port 1

Interface

Communication standard

RS-232C

Connection

D-sub 9-pin

Transmission specifications
RS-232C

Transmission speed

1,200, 2,400, 4,800, 9,600, 19,200, 38,400, 57,600, 115,200, 230,400 bps*2

Transmission specifications

RS-232C

Full duplex

Transmission specifications
RS-232C

Data format

Starting bit: 1 bit, Data bits: 7 bits/8 bits, Stop bit: 1 bit/2 bits

Error detection

Parity: Even, odd, none
Checksum: Present, not present (only enabled in protocol mode 1 and protocol mode 4)

Transmission distance

15 m or less

Number of transmission units

1

Station number

0 to 9*3

Special function

Modem communication (modem operation mode)

Display

SD (orange), RD (orange), RS (green), CS (green)

Port 2

Interface

Communication standard

RS-232C, RS-422A, RS-485 (4-wire method), RS-485 (2-wire method)

Connection

Terminal block

Transmission specifications
RS-232C

Transmission speed

1,200, 2,400, 4,800, 9,600, 19,200, 38,400, 57,600, 115,200, 230,400 bps*2

Transmission system

Full duplex

Data format

Starting bit: 1 bit, Data bits: 7 bits/8 bits, Stop bit: 1 bit/2 bits

Error detection

Parity: Even, odd, none
Checksum: Present, not present (only enabled in protocol mode 1 and protocol mode 4)

Transmission distance

15 m or less

Number of transmission units

1

Station number

0 to 9

Transmission specifications
RS-422A, RS-485
(4-wire method)

Transmission speed

1,200, 2,400, 4,800, 9,600, 19,200, 38,400, 57,600, 115,200, 230,400 bps*2

Full duplex

Data format

Starting bit: 1 bit, Data bits: 7 bits/8 bits, Stop bit: 1 bit/2 bits

Error detection

Parity: Even, odd, none
Checksum: Present, not present (only enabled in protocol mode 1 and protocol mode 4)

Transmission distance

Maximum extension distance: 1,200 m*4

Number of transmission units

32

Station number

0 to 9

Terminator

Set with the main unit's front panel switch

Transmission specifications
RS-485 (2-wire method)

Transmission speed

1,200, 2,400, 4,800, 9,600, 19,200, 38,400, 57,600, 115,200, 230,400 bps*2

Half duplex

Data format

Starting bit: 1 bit, Data bits: 7 bits/8 bits, Stop bit: 1 bit/2 bits

Error detection

Parity: Even, odd, none
Checksum: None

Transmission distance

Maximum extension distance: 1,200 m*4

Number of transmission units

32

Station number

-*5

Terminator

Set with the main unit's front panel switch

Display

SD (orange), RD (orange), RS(green), CS (green)

Weight

Approx. 160 g

*1 Conforms to JIS B 3502, IEC61131-2
Number of sweeps: 10 times respectively in the X, Y, and Z directions, 100 minutes
*2 This can only be selected when the supported model (the CPU unit to be used) is the KV-5500/5000/30000.
*3 The station number is a setting that is common to port 1 and port 2.
*4 When the transmission speed is 230,400 bps, the maximum extension distance is 500 m.
*5 The station number does not need to be set because only procedureless mode or PROTOCOL STUDIO mode can be set with RS-485 (2-wire method).

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