Technical Specifications  
  UN 200 Siemens 200
Model CPU226 DC/DC/DC CPU226 DC/DC/DC
Physical characteristic
Dimensions W x H x D (mm) 1968062 1968062
Power consume 11W 11W
Memory
Program memory size    
With run mode edit 24K 16384 Bytes
Without run mode edit 24K 24576 Bytes
Data memory 10K 10240 Bytes
I/O
Local digital inputs 24 inputs 24 inputs
Local digital outputs 16 outputs 16 outputs
Digital I/O image size 256 (128 inputs/128 outputs) 256 (128 inputs/128 outputs)
Analog I/O image size 64 (32 inputs/32 outputs) 64 (32 inputs/32 outputs)
Expansion modules allowed (Max.) 7 modules 7 modules
Intelligent modules allowed (Max.) 7 modules 7 modules
Pulse catch inputs 24 24
High-speed counters 6 counters total 6 counters total
Single phase 6 at 30KHz 6 at 30KHz
Two phase 4 at 20KHz 4 at 20KHz
Pulse outputs 2 at 20KHz (DC outputs only) 2 at 20KHz (DC outputs only)
General
Timer Total number: 512 (1ms:8; 10ms:32; 100ms:472) Total number: 256 (1ms:4; 10ms:16; 100ms:236)
Counters 512 256
Internal memory bits stored on power down 512 256
Time interrupts 2 with1ms resolution 2 with1ms resolution
Edge interrupts 4 up and/or 4 down 4 up and/or 4 down
Analog adjustment 2 with 8 bit resolution 2 with 8 bit resolution
Boolean execution speed 0.08s per instruction 0.22s per instruction
Real Time Clock Built-in Built-in
Communications Built-in
Ports 3 RS-485 ports, within 2 standard PPI port 2 RS-485 ports
PPI Baud Rates 9.6, 19.2 and 187.5Kbaud 9.6, 19.2 and 187.5Kbaud
Freeport Baud Rates 1.2k baud to 115.2Kbaud 1.2k baud to 115.2Kbaud
Cable length per segment (Max.) With isolated repeater: 1000m up to 187.5kbaud, 1200m up to 38.4kbaud With isolated repeater: 1000m up to 187.5kbaud, 1200m up to 38.4kbaud
Without isolated repeater: 50m Without isolated repeater: 50m
Number of stations (Max.) 32 per segment, 126 per network 32 per segment, 126 per network
Number of masters (Max.) 32 32
Peer to peer (PPI Master Mode) Yes Yes
Power
Input voltage 20.4 to 28.8 V DC 20.4 to 28.8 V DC
Input current 110mA while CPU only at 24 V DC 150mA while CPU only at 24 V DC
700mA while Max. load at 24 V DC 1050mA while Max. load at 24 V DC
Inrush current 12A at 28.8 V DC 12A at 28.8 V DC
Isolation (field to logic) Not isolated Not isolated
Hold up time (loss of power) 10ms at 24 V DC 10ms at 24 V DC
Sensor voltage L + minus 5 V L + minus 5 V
Current limit 1.5A peak, thermal limit non-destructive 1.5A peak, thermal limit non-destructive
Ripple noise (sensor to logic) Derived from input power Derived from input power
Isolation (sensor to logic) Not isolated Not isolated
CPU Digital Input Specifications
Built-in digital inputs 24 24
Input type PNP/NPN PNP/NPN
Rated voltage 24 V DC at 4mA 24 V DC at 4mA
Continuous permissible voltage (Max.) 30 V DC 30 V DC
Surge voltage 35 V DC for 0.5s 35 V DC for 0.5s
Logic 1  voltage range 15 to 30 V DC 15 V DC at 2.5mA
Logic 0  voltage range 0 to 5 V DC 5 V DC at 1mA
Input delay Selectable (0.2 to12.8ms) Selectable (0.2 to12.8ms)
Connection of 2-wire proximity sensor (Bero) 1mA 1mA
Premissible leakage current (Max.)
Isolation (field to logic) Yes Yes
Optical galvanic 500 V AC for 1 minute 500 V AC for 1 minute
Isolation groups Refer to Wiring diagram Refer to Wiring diagram
High Speed Counter (HSC) input rate    
HSC logic level 1 (15 TO 30 V DC) 20K Hz (Single phase), 10K Hz (Two phase) 20K Hz (Single phase), 10K Hz (Two phase)
HSC logic level 1 (15 TO 26 V DC) 30K Hz (Single phase), 20K Hz (Two phase), 30K Hz (Single phase), 20K Hz (Two phase),
Inputs on simultaneously All All
Cable length (Max.)
Shielded 500m normal inputs, 50m HSC inputs 500m normal inputs, 50m HSC inputs
Unshielded 300m normal inputs 300m normal inputs
CPU Digital Output Specifications
Built-in outputs 16 outputs 16 outputs
Output type Solid State-MOSFET (Sourcing) Solid State-MOSFET (Sourcing)
Rated voltage 24 V DC 24 V DC
Voltage range 20.4 to 28.8 V DC 20.4 to 28.8 V DC
Surge current (Max.) 8A for 100ms 8A for 100ms
Logic 1  (Min.) 20 V DC, at maximum current 20 V DC, at maximum current
Logic 0  (Max.) 0.1 V DC with 10KΩ load 0.1 V DC with 10KΩ load
Rated current per point (Max.) 0.75A 0.75A
Rated current per common (Max.) 6A 6A
Leakage current (Max.) 10A 10A
Lamp load (Max.) 5W 5W
Inductive clamp voltage L+ minus 48 VDC, 1W dissipation L+ minus 48 VDC, 1W dissipation
On State resistance (contact) 0.3Ω Typical (0.6Ω max.) 0.3Ω Typical (0.6Ω max.)
Isolation
Optical (galvanic, field to logic) 500 V AC for 1 minute 500 V AC for 1 minute
logic to contact - -
Resistance (logic to contact) - -
Isolation groups Refer to wiring diagram Refer to wiring diagram
Delay (Max.)    
Off to on 2s (Q0.0,Q0.1), 15s (others) 2s (Q0.0,Q0.1), 15s (others)
On to off 10s (Q0.0,Q0.1), 130s (others) 10s (Q0.0,Q0.1), 130s (others)
Switching - -
Pulse frequency (Max.) 20KHz (Q0.0 and Q0.1) 20KHz (Q0.0 and Q0.1)
Lifetime mechanical cycles - -
Lifetime contacts - -
Outputs on simultaneously All at 60℃ (Horizontal) All at 55℃ (Horizontal)
All at 50℃ (Vertical) All at 48℃ (Vertical)
Connecting two outputs in parallel Yes, only outputs in same group Yes, only outputs in same group
Cable Length (Shielded) 500m 500m
Cable Length (Unshielded) 150m 150m
Order number UN 216-2AD23-0XB0 6ES7 216-2AD23-0XB0