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model
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CPU 126E-2Q DC/DC/DC (transistor)
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CPU 126E-2R AC/DC/RLY (Relay)
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order number
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UN126-2AE23-0XB8
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UN126-2BE23-0XB8
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physical properties
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Dimensions (W*H*D)
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196 x 80 x 62mm
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Power consumption
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10W
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17W
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Power characteristics
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Rated voltage
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DC 24V
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AC 220V
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Input voltage
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DC 20.4 to 28.8V
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AC 85 to 264V
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Input Current
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100mA (CPU only, at 24VDC)
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60/30mA (CPU only, 120/240VAC)
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electric shock
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12A at 28.8V DC
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20A at 264V AC
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Insurance
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3A 250V slow melting
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3A 250V slow melting
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sensor voltage
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L + minus 5V
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20.4 to 28.8VDC
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sensor current
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300mA (max)
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300mA (max)
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Ripple noise
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from input power
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Less than 1V peak fraction
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Memory characteristics
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program memory
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18K
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data storage
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10K
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General Features
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Total number of timers
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256 in total, 4 1ms, 16 10ms, 236 100ms
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Total number of counters
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256
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time interruption
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2 1ms resolution
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edge interrupt
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4 rising edges/4 falling edges
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Analog potentiometer
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not support
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Real Time Clock
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Supported, 50 hours/typ. (minimum 8 hours at 40°C) after power down
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Card Options
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memory card, battery card
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Power-down retention
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Supported ( data retention up to 10 years )
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Ethernet communication function
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interface
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1 RJ45 Ethernet port
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communication rate
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10/100Mb/s
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duplex mode
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full duplex
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Communication distance
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Twisted pair 100m (more than router or switch)
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Maximum number of simultaneous connections
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7 (MODBUS-TCP + S7)
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The maximum number of bytes of single communication
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240 bytes
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Host computer communication
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Support Micro/Win Kingview WinCC
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UniMAT HMI screen
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Supports up to 2 (S7 communication)
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Modbus master/slave
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Supports 4 master/4 slave simultaneous connections
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Serial communication function
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interface
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2 RS-485 standard PPI communication ports
Support Freeport and MODBUS communication
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Communication baud rate
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PPI: 9.6, 19.2, 187.5kbps three baud rates
Free port: 1.2kbps～115.2kbps
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Maximum length of each cable length
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With isolated interruption relays: 187.5kbps up to 1000 meters, 38.4kbps up to 1200 meters, 50 meters without isolated repeaters
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Maximum number of sites
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32 stations per segment, 126 stations per network
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Maximum number of master stations
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32
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PPI master mode
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support
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I/O Characteristics
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Local digital input
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24 inputs
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Local digital output
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16 outputs
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Local analog input
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none
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Local analog output
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none
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Digital I/O Image Area
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256 ( 128 in / 128 out)
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Analog I/O image area
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64 ( 32 in / 32 out)
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Maximum allowable expansion I/O modules
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7 modules
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Digital Input Characteristics
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The number of digital input points integrated in the machine
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24 inputs
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input type
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PNP/NPN
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Rated voltage
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24VDC, 4mA
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Maximum continuous allowable voltage
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30V DC
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surge voltage
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35VDC, 0.5 seconds
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logic 1 [minimum]
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15VDC 2.5mA
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logic 0[max]
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5VDC 1mA
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input filter
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1-13ms
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Allowable leakage current [max]
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1mA
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isolation
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is opto-isolated
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Optical isolation
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500VAC for 1 minute
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high-speed counter
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Single-phase 20K[2 pieces]
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AB phase 10K[1]
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Digital output characteristics
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Local integrated digital output points
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16 outputs
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output type
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Solid State - MOSFET
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dry contact
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Rated voltage
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24VDC
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24VDC or 250VAC
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voltage range
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20.4～28.8VDC
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5～30VDC 5～250VAC
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Inrush current (max)
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8A, 100ms
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5A 4s 10% duty cycle
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logic 1 (minimum)
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20VDC (at maximum current)
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-
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logic 0 (max)
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0.1VDC, 10KΩ load
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-
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Rated current per point (max)
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0.75A
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2A
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Current rating per common (max)
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6A
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10A
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Leakage current [max]
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10uA
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-
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Lamp load [max]
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5W
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30W DC/200W AC
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Inductive clamping voltage
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L+ minus 48VDC 1W power consumption
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-
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On-resistance [contact]
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0.3Ω typical (0.6Ω max)
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0.2Ω (max when new)
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Pulse frequency [max]
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20kHz 2 [Q0.0 Q0.1]
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1Hz
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mechanical life cycle
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-
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10000000 (no load)
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Contact life
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-
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100000 (rated load)
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Two outputs in parallel
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Yes, only when outputting the same group
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no
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Environmental parameters
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Working temperature
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0°C to +60°C (horizontal installation), 0°C to +40°C (vertical installation)
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Transport ambient temperature
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-20℃～＋80℃
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Ambient relative humidity
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5 to 95%, non-condensing (RH class 2, in accordance with IEC61131-2)
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Electromagnetic Compatibility
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Noise suppression, in accordance with IEC61000-6-2
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Mechanical class (vibration)
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IEC60068,Part2-6/10up58Hz
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Protection class
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IP20
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