Huceen

E7 200Smart CPU Standard Edition，CPU ST20 Transistor，12DI/8DO,1*RJ45，2*RS485，2*100KHz high-speed pulse, Expandable to 6IO

CPU ST20 DC/DC/DC Specifications

Model No: ST20 DC/DC/DC
Article No: E7 288-1ST20-0AA1
Description: Standard CPU ST20, Transistor
Conventional Norm: Not specified
Dimensions (WxHxD): 90 × 100 × 81 mm
Power Consumption: 20W
Available Current (SM Bus): Max. 1400mA
Available Current (24V DC): Max. 300mA

CPU Features

• Program Memory: 12 KB
• Data Memory: 8 KB
• Retentive Memory: 10 KB
• Data Preservation: Permanent
• Built-in I/O: 12 Digital Inputs / 8 Digital Outputs
• Process Image Size: 256-bit Input (I) / 256-bit Output (Q)
• Analog Image: 56 words Input (AI) / 56 words Output (AQ)
• Expansion Modules Allowed: Up to 6 modules
• High-Speed Counters (Total): 6 total 
  • Single Phase: 4 @ 200KHz + 2 @ 30KHz
  • Quadrature Phase: 2 @ 100KHz + 2 @ 20KHz
• Pulse Output: 2 @ 100KHz
• Timer: 192 Non-Holding (TON, TOF), 64 Holding
• Counters: 256
• Bit Memory (M): 256 bits
• Cycle Interrupt: 2 total, T32 and T96 (1ms resolution)
• Interrupt Edge: 4 Up and 4 Down
• Real-Time Clock: Usually 7 days, at least 6 days at 25°C
• Memory Card: Supported
• Signal Expansion Board: Supported

Performance/Processing Time:

• Boolean: 0.35 µs/instruction
• Moving Word Operations: 1.2 µs/instruction
• Floating Point: 1.7 µs/instruction

Communications Built-in

• Ports:
  • Ethernet: 1
  • Body Serial Port: 2 (DB9-RS485)
  • DB Board Serial Port: 1 (CM01-RS485-RS232)
• HMI Connections:
  • Ethernet: 8 connections
  • Serial Port: 4 connections
• Programming (PG): 1 connection
• Ethernet (CPU PUT/GET): 8 clients and 8 servers connections
• Open Type Communication: 8 active and 8 passive connections
• Data Transmission Rate:
  • Ethernet: 10/100 Mb/s
  • RS485 System Protocol: 9600, 19200, 187500 b/s
  • RS485 Free Port: 1200 to 115200 b/s
• Isolation:
  • Ethernet: Transformer isolation, 1500VDC
  • RS485: None
• Cable Type:
  • Ethernet: CAT5e Shielded cable
  • RS485: PROFIBUS Network cable

Power

• Input Voltage: 20.4-28.8V DC
• Input Current (CPU only):
  • 190mA (without 300mA power supply output of the sensor) when CPU only at 24V DC
  • 470mA (with 300mA power supply output of the sensor) when CPU only at 24V DC
• Input Current (Includes CPU and all expansion accessories): 680mA at 24V DC
• Inrush Current (Max): 11.7A at 28.8V DC
• Sensor Voltage: 20.4-28.8V DC
• Isolation:
  • Input to Logic: No quarantine
  • Sensor to Logic: Not isolated

Digital Input

• Number of Inputs: 12
• Input Type: Sinking / Sourcing type (IEC type 1 sinking, except for I0.0 to I0.3)
• Allowable Continuous Voltage: Max. 30V DC
• Surge Voltage (Max): 35V DC, lasting 0.5s
• Logic 1 Signal (Min):
  • 4V DC for I0.0 to I0.3 and I0.6 to I0.7: 8mA
  • Other inputs: 15V DC at 2.5mA
• Logic 0 Signal (Max):
  • 4V DC for I0.0 to I0.3 and I0.6 to I0.7: 1mA
  • Other inputs: 5V DC at 1mA
• Optical Isolation (Field Side and Logic Side): 500V AC for 1 minute
• Isolation Group: 1
• Filter Time: Each channel can be separately selected (0.2, 0.4, 0.8, 1.6, 3.2, 6.4, and 12.8 µs; 0.2, 0.4, 0.8, 1.6, 3.2, 6.4, and 12.8 ms)

Digital Output

• Number of Outputs: 8
• Output Type: Solid-MOSFET (source-type)
• Voltage Range: 20.4-28.8V DC
• Surge Current (Max): 8A, max. lasting 100ms
• Rated Current per Point (Max): 0.5A
• Switching Frequency (Max): Not specified
• Turn-on Delay (Qa.0-Qa.3):
  • From disconnection to connection (Max): 1.0 µs
  • From connection to disconnection (Max): 3.0 µs
• Turn-off Delay (Qa.4-Qa.7):
  • From disconnection to connection (Max): 50 µs
  • From connection to disconnection (Max): 200 µs
• Optical Isolation (Field Side and Logic Side): 500V AC for 1 minute
• Contact Lifetime:
  • Non-loaded: Not specified
  • Rated load: Not specified

This detailed specification gives a complete overview of the CPU ST20 DC/DC/DC model, its electrical and communication characteristics, and other important operational details. If you need further explanation or adjustments, feel free to ask!