Huceen

E5 200Smart CPU Basic Edition，CPU SR20 Relay，12DI/8DO，1*RJ45，1*RS485, Expandable to 6IO

General Overview

• Model Number: SR20 AC/DC/RLY
• Article Number: E5 288-1SR20-0AA1
• Description: Basic Edition CPU with relay outputs.
• Dimensions (WxHxD): 90 mm × 100 mm × 81 mm
• Power Consumption: 14W

Electrical Specifications

• Available Current:
  • SM Bus: Max. 1400mA
  • 24V DC: Max. 300mA
• Input Voltage: 85V – 264V AC/DC
• Input Current (CPU only):
  • Without 300mA power supply output:
    • 130mA at 120V AC
    • 80mA at 240V AC
  • With 300mA power supply output:
    • 250mA at 120V AC
    • 150mA at 240V AC
• Input Current (Including CPU + Expansion Modules):
  • At 120V AC: 300mA
  • At 240V AC: 190mA
• Inrush Current (Max): 9.3A at 264V DC
• Sensor Voltage: 20.4V – 28.8V DC
• Isolation:
  • Input to Logic: 1500V AC for 1 minute
  • Sensor to Logic: Not isolated

Memory and Data

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

I/O Specifications

• Built-in I/O:
  • Digital Inputs: 12 (Sinking/Sourcing type, IEC type 1 sinking)
  • Digital Outputs: 8 (Relay, dry contact)
  • Analog Inputs: None
  • Analog Outputs: None

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
• Logic 0 Signal (Max): 5V DC at 1mA
• Optical Isolation: 500V AC (lasting 1.0 minute)
• Filter Time: Selectable per channel:
  • 0 ms, 6.4 ms, or 12.8 ms

Digital Outputs (Relay, Dry Contact):

• Voltage Range: 5-30V DC or 5-250V AC
• Surge Current (Max): 7A when powered on
• Rated Current per Point (Max): 2.0A
• Switching Frequency (Max): Not recommended
• Turn-on Delay (Qa.0 - Qa.3): Up to 10ms
• Turn-off Delay (Qa.4 - Qa.7): Up to 10ms
• Optical Isolation: 500V AC (lasting 1.0 minute)
• Contact Lifetime:
  • Non-loaded: 10,000,000 cycles
  • Rated load: 10,000 cycles

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)
  • Communication (PUT/GET): Shares 5 client and server connections
  • Open Type Communication: Shares 5 active and passive connections
• RS485:
  • 1 DB9-RS485 port
  • 1 DB board serial port (CM01-RS485-RS232)
  • RS485 Free Port: Supports 1200 to 115200 b/s data transmission rates
• HMI Connections:
  • 5 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: 4 in total
  • Single Phase: 4 counters at 50kHz
  • Quadrature Phase: 1 counter at 30kHz
• Pulse Output: None