ES-6701 Rev.6
R2K-1
R2K Series
RS-232-C/RS-485 CONVERTER
Functions & Features
• Bidirectional converter between RS-232-C and RS-485 used when connecting Modbus RS-485 devices to a PC
MODEL: R2K-1-[1]
ORDERING INFORMATION
• Code number: R2K-1-R
Consult Factory for AC power input.
[1] POWER INPUT
DC Power
R
: 24 V DC
(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)
GENERAL SPECIFICATIONS
Connection
RS-232-C
: 9-pin D-sub connector (male, lock screw No. 4-40 UNC); A ‘Straight’ type cable connecting to the PC is to be prepared by the user.
RS-485, power input
: Euro type connector terminal
Isolation
: RS-232-C to RS-485 or power
Data, parity & stop bit setting
: DIP switches at the bottom
Baud rate setting
: Front rotary switch
RUN indicator LED
: Green light blinks in normal conditions.
ERR.1 indicator
: Red LED blinks with RS-232-C overrun error; ON with parity framing error.
ERR.2 indicator
: Red LED blinks with RS-485 overrun error; ON with parity framing error.
COMMUNICATION
Baud rate
: 300, 600, 1200, 2400, 4800, 9600, 14.4 k,
19.2 k, 28.8 k, 38.4 k, 57.6 k, 76.8 k (bps)
Data bit
: 7 or 8 bits
Parity
: Odd, even or none
Stop bit
: 1 or 2 bits
Communication
: Half-duplex, asynchronous, no procedure
Data delay time
: 300 microseconds
■
RS-232-C
Standard
: Conforms to RS-232-C, EIA
Transmission distance
: 10 meters max.
■
RS-485
Standard
: Conforms to TIA/EIA–485–A
Transmission distance
: 500 meters max.
Transmission media
: Shielded twisted-pair cable (CPEV-S 0.9 dia.)
INSTALLATION
Power consumption
•
DC
: Approx. 2 W
Operating temperature
: -5 to +60°C (23 to 140°F)
Operating humidity
: 30 to 90 %RH (non-condensing)
Mounting
: Surface or DIN rail
Weight
: 150 g (0.33 lb)
PERFORMANCE
Insulation resistance
: ≥ 100 MΩ with 500 V DC
Dielectric strength
: 500 V AC @ 1 minute
(RS-232-C to RS-485 or power)
STANDARDS & APPROVALS
EU conformity
:
EMC Directive
EMI EN 61000-6-4
EMS EN 61000-6-2
RoHS Directive
EXTERNAL VIEW
EXTERNAL DIMENSIONS unit: mm [inch]
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM