model
Technical Parameters
CPU SR20XP
Order No. Model
UN 288-1SR20XP-0AA0
Dimensions W x H x D (mm)
110 x 100 x 81
power consumption
20W
Current supply (SM bus)
up to 1400 Ma
Current supply (24 V DC)
300mA max.
CPU characteristics
user memory
24 KB program memory/16 KB data memory/10 KB retentive memory
Onboard digital I/O
12 points input/8 points output
Process image size
256-bit input (I)/256-bit output (Q)
simulated image
56 words of input (AI)/56 words of output (AQ)
bit memory (M)
256 bits
temporary (local) storage
64 bytes in the main program, 64 bytes in each subroutine and interrupt routine
I/O module expansion
Up to 6 expansion modules
Signal Board Expansion
Up to 1 signal board
high speed counter
A total of 6
single-phase: 6 200 KHz AB phase: 4 100 KHz
Pulse output
-
Pulse catch input
12
loop break
2 total, resolution 1 ms
loop break
2 total, resolution 1 ms
edge interrupt
4 rising and 4 falling edges (6 each with optional signal board, 2 with BD board)
Real Time Clock Accuracy
+/- 120 seconds/month
Real time clock keeps time
Typically 7 days, minimum 6 days at 25˚ C
Computing performance
boolean operation
<0.15 μs/instruction
move word
<1.2 μs/instruction
Mathematical operations on real numbers
<3.6 μs/instruction
user program element
FOR
Type/Number
• Main program: 1
• Subroutines: 128 (0 to 127)
• Interrupt routines: 128 (0 to 127) nesting depth
• From main program: 8 subroutine levels
• From interrupt routines: 4 subroutines program level
accumulator
4
timer
Type/Quantity
• Non-holding type (TON, TOF): 192 pieces (T32~T65, T96~T255)
• Holding type: 64 pieces (T0~T31, T64~T95)
counter
256
communication
Number of ports
Ethernet: 1
Serial port: 1 (RS485)
Expansion port: Optional RS232/485 BD board (switchable)
programming device
Serial port: 1 connection, Ethernet port: 1 connection
CPU（PUT/GET）
Ethernet: total number of client, server connections 6
Open User Communication
Ethernet: The total number of active and passive connections is 6, and the monitoring protocol can dynamically allocate connection resources
data transfer rate
Network port: 10/100 Mb/s adaptive
RS485 system protocol: 9600, 19200 and 187500 b/
RS485 Freeport: 2400 to 115200 b/s
Isolation (external signals and PLC logic side
Ethernet: Transformer isolated, 1500 V DC RS485: None
cable type
Ethernet: CAT5e shielded cable RS485: PROFIBUS network cable
power input
voltage range
85 ~ 264 V AC
power frequency
47 ~ 63 Hz
Inrush current (maximum)
20 A at 264 V AC
Isolation (input supply and logic side)
1500 V AC
Internal fuse (not user replaceable)
1 A, 250 V, slow blow
Power Output
voltage range
20.4 ~ 28.8 V DC
Rated output current (maximum)
300 mA
Maximum ripple noise (<10MHz)
< 1 V peak
Isolation (CPU logic side and sensor supply)
not isolated
digital input
Enter points
12
type
sink/source
Rated voltage
24 V DC at 4 mA, nominal
Allowable continuous voltage
30 V DC max.
surge voltage
35 V DC for 0.5 s
Logic 1 signal (minimum)
I0.0～I0.3, I0.6～I1.1:
3.7mA at 15VDC;
other inputs: 2.5mA at 15VDC;
Logic 0 signal (maximum)
DI point (I0.0～I1.3): 1mA at 5VDC;
Isolation (field side and logic side)
500 V AC for 1 min
filter time
Individually selectable for each channel (points I0.0 to I1.3)
HSC input frequency (maximum)
Single phase: 6 200 KHz
AB phase: 3 200 KHz
digital output
output points
8
type
relay, dry contact
voltage range
5 ~ 30 V DC or 5 ~ 250 V AC
Rated current per point (maximum)
2.0 A
Rated current (max)
10A
lamp load
30 W DC/200 W AC
On-state resistance
0.2 Ω max for new devices
Leakage current per point
-
overload protection
none
Mechanical life (no load)
10,000,000 open/close cycles
Contact life under rated load
100,000 open/close cycles
cable length
500m (shielded), 150m (unshielded)
analog input
Enter points
4
type
single ended
Voltage input range
±10 V
Current input range
0～20mA
Voltage data range
-27648～+27648
Current data range
0～+27648
DC input impedance
＞100KΩ
input voltage
30VDC
resolution
11 bits plus 1 sign bit, LSB value: 4.88mV
precision
±1.0% of full scale
±2.0% of full scale [Typical limit -0°C~50°C]
Analog to Digital Conversion Time
250ms
noise suppression
Typical -40dB@50Hz
isolation
none
address
AIW0~AIW6
analog output
output points
2 outputs
output type
voltage or current
Voltage output range
0～+10V
Current output range
0～+20mA
resolution
12 bits
data range
Voltage: 0～+27648
Current: 0～27648
precision
Voltage output ±1% of full scale, current output ±1% of full scale [typically at 25°C]
voltage output ±2% of full scale, current output ±2% of full scale [typical limit -0°C to 50°C]
Maximum output drive
Voltage ≥ 5000 Ω
Current ≤ 500 Ω
isolation
none
address
AQW0~AQW2
Environmental parameters
Working temperature
-10°C～60°C (horizontal installation), -10°C～40°C (vertical installation)
Transport ambient temperature
-20℃～80℃
Ambient relative humidity
5～95%, non-condensing (RH level 2, in line with IEC60068-2)
degree of protection
IP20
Mechanical Rating (Vibration)
Conforms to IEC61131-2
grounding
Type D grounding (grounding resistance: below 100Ω), common grounding with strong current system is not allowed
use environment
No corrosive, flammable gas, conductive dust (dust) is not serious location
use height
Below 2000M (It cannot be used in an environment pressurized to above atmospheric pressure. Otherwise, failure may occur .)
Side View
Dimensions (mm)
Wiring Diagram
If You Would Like to Contact Support or Make a Purchase Please Fill out the Form
If you have urgent needs, please call our customer service number
Please fill in your information in detail so that our support staff can clearly understand your needs.