Description
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!
