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MELSEC-
A
3 SPECIFICATIONS
3.2 Performance specifications
The R2 performance specifications are shown below.
(1) RS-232-C specifications
Item Specifications
Interface specifications RS-232-C compliant, 1 channel (Refer to section 3.3)
Transmission method Full duplex communication method
Synchronization method Start-stop synchronization method
Transmission speed 300, 600, 1200, 2400, 4800, 9600, 19200bps
(Select with RS-232-C transmission specification setting switch)
Star bit 1
Data bit 7/8
Parity bit 1 (Yes)/0 (No)
Data format
Stop bit 1/2
Error detection With parity check (even/odd)/None
DTR/DSR (ER/DR) controlCommunication control
(flow control)
DC1/DC3 control
Transmission distance 15m
OS reception area 5120 bytes
(2) Data link specifications
Item Specifications
General-purpose input/output
specifications
Input side : 24VDC (Positive common/negative common shared type) 2 points
Output side : Transistor output (sink type) 12/24VDC 2 points Terminal block (Refer to
section 3.4)
Transmission path Bus (RS-485)
EEPROM writing life 100,000 times
CC-Link station type Intelligent device station
No. of occupied stations 1 station (RX/RY 32 points each, RWw/RWr 4 points each)
Connection cable CC-Link dedicated cable
Withstand voltage One minute at 500VAC between DC external terminal batch and grounding
Insulation resistance
10M
Ω
or more with 500VDC insulation resistance meter between DC external terminal
batch and grounding
Noise withstand level DC type noise voltage 500Vp-p
With noise width 1
μ
s, noise frequency 25 to 60Hz noise simulator
Module installation screw
M4
×
0.7mm
×
16mm or more screw
(Tightening torque range 0.78 to 1.18N
⋅
m)
Applicable DIN rail TH35-7.5Fe, TH35-7.5Al, TH35-15Fe (JIS C 2812 compliant)
24VDC
External power supply
Current consumption: 0.11A
Tolerable instantaneous
power failure time
1ms
Weight 0.40kg