Huceen

E7 200Smart CPU Standard Edition，CPU ST20XP Transistor，12DI/8D0/4AI/2AO,1*RJ45，2*RS485，3*100KHz high-speed pulse, Expandable to 6IO

General Overview

• Model Number: ST20XP DC/DC/DC
• Article Number: E7 288-1ST20-XPA1
• Description: Standard Edition CPU with 4 inputs, 2 outputs with analog signals, and transistor outputs.
• Dimensions (WxHxD): 110 mm × 100 mm × 81 mm
• Power Consumption: 18W

Electrical Specifications

• Available Current:
  • SM Bus: Max. 1400mA
  • 24V DC: Max. 300mA
• Input Voltage: 20.4V – 28.8V DC
• Input Current (CPU only):
  • Without 300mA sensor power supply: 190mA at 24V DC
  • With 300mA sensor power supply: 470mA at 24V DC
• Input Current (Includes CPU + Expansion Modules):
  • At 24V DC: 680mA
• Inrush Current (Max): 6A at 28.8V DC
• Sensor Voltage: 20.4V – 28.8V DC
• Isolation:
  • Input to Logic: None
  • Sensor to Logic: Not isolated

Memory and Data

• Program Memory: 12 KB
• Data Memory: 8 KB
• Retentive Memory: 10 KB (permanent data preservation)
• Bit Memory (M): 256 bits
• Cycle Interrupts: 2 (T32 and T96) with a 1ms resolution
• Counters: 256
• Timers:
  • Non-retained (TON, TOF): 192 timers
  • Retained: 64 timers

I/O Specifications

• Built-in I/O:
  • Digital Inputs: 12 (Sinking/Sourcing type, IEC type 1 sinking)
  • Digital Outputs: 8 (Solid-MOSFET, source-type)
  • Analog Inputs: 4 (Voltage/Current inputs)
  • Analog Outputs: 2 (Voltage/Current outputs)

Digital I/O Characteristics

Digital Inputs:

• Allowable Continuous Voltage: Max. 30V DC
• Surge Voltage (Max): 35V DC (lasting 0.5s)
• Logic 1 Signal (Min): 15V DC at 2.5mA (for standard inputs)
• Logic 0 Signal (Max): 5V DC at 1mA
• Optical Isolation: 500V AC (lasting 1 minute)
• Filter Time: Configurable for each channel (ranging from 0.2 µs to 12.8 ms)

Digital Outputs (Solid-MOSFET, Source-Type):

• Voltage Range: 20.4V – 28.8V DC
• Surge Current (Max): 8A (lasting 100ms)
• Rated Current per Point (Max): 0.5A
• Switching Frequency: Not specified (likely low-frequency operation)
• Turn-on Delay (Qa.0-Qa.3): Max. 1.0 µs (from disconnection to connection)
• Turn-off Delay (Qa.4-Qa.7): Max. 50 µs (from disconnection to connection)
• Optical Isolation: 500V AC (lasting 1 minute)

Analog I/O Characteristics

Analog Inputs (4 channels):

• Input Types: Voltage or current (can be selected as a group)
• Input Range:
  • Current Mode: 0-20mA
  • Voltage Mode: 0-10V
• Resolution: 12 bits (both current and voltage modes)
• Accuracy:
  • Voltage Mode: ±0.3% to ±0.5% of full scale range
  • Current Mode: ±0.4% to ±0.6% of full scale range
• Analog-to-Digital Switching Time: 50ms (at 50Hz)

Analog Outputs (2 channels):

• Output Types: Voltage or current
• Output Range:
  • Current Mode: 0-20mA
  • Voltage Mode: 0-10V
• Resolution: 11 bits (both current and voltage modes)
• Accuracy:
  • Typical (at 25°C): ±0.5% to ±1.0% of full scale range
  • Worst Case (0 to 55°C): ±0.5% to ±1.0% of full scale range
• Diagnosis: Upflow/underflow; 24V DC low voltage
• Maximum Cable Length: 100m (Shielded twisted pair)

Performance and Processing Time

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

Communications and Ports

• Ethernet:
  • 1 Ethernet port (10/100 Mb/s)
  • CPU Communication (PUT/GET): 8 clients and 8 servers connections
  • Open Type Communication: 8 active and 8 passive connections
• RS485:
  • 2 DB9-RS485 ports
  • 1 DB board serial port (CM01-RS485-RS232)
  • RS485 Free Port: Supports 1200 to 115200 b/s data transmission rates
• HMI Connections:
  • 8 connections via Ethernet
  • 4 connections via serial port
• Programming (PG) Connection: 1 connection

Expansion and Counters

• Expansion Modules Allowed: Up to 6 modules
• High-Speed Counters: 6 in total, with specific frequencies:
  • Single Phase: 4 counters at 200kHz + 2 counters at 30kHz
  • Quadrature Phase: 2 counters at 100kHz + 2 counters at 20kHz
• Pulse Output: 2 channels at 100kHz