Description
E7 200Smart CPU Standard Edition，CPU SR20XP Relay，12DI/8DO/4AI/2AO,1*RJ45，2*RS485, Expandable to 6IO
General Overview
- Model Number: SR20XP AC/DC/RLY
- Article Number: E7 288-1SR20-XPA1
- Description: Standard CPU with 4 analog inputs, 2 analog outputs, 12 digital inputs, 8 digital outputs, and relay outputs.
- Dimensions (WxHxD): 110 mm × 100 mm × 81 mm
- Power Consumption: 23W
Electrical Specifications
- Available Current:
- SM Bus: Max. 1400mA
- 24V DC: Max. 300mA
- Input Voltage: 85-264V AC
- Input Current (CPU only):
- 120V AC (no sensor power supply): 130mA
- 120V AC (with 300mA sensor power supply): 250mA
- 240V AC (no sensor power supply): 80mA
- 240V AC (with 300mA sensor power supply): 150mA
- Input Current (Includes CPU + Expansion Modules):
- 120V AC: 300mA
- 240V AC: 190mA
- Inrush Current (Max): 8.9A at 264V AC
- Sensor Voltage: 20.4V – 28.8V DC
- Isolation:
- Input to Logic: 1500V AC (1 minute)
- 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 (Relay, dry contact)
- 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 (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: Not recommended for high-frequency switching
- 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 minute)
- Contact Lifetime:
- Non-loaded: 10,000,000 cycles
- Rated Load: 10,000 cycles
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: Not available