CPU224XP-ETH Manual

ClassificationGPU224XP-R -ETHGPU224XP-T -ETH
Digital input1414
Digital output10 relay10 transistor
Analog input2 channels (voltage or current input can be switched)2 channels (voltage or current input can be switched)
Analog output11
485 interface22
Ethernet port100M adaptive100M adaptive
Power supply24VDC24VDC
Note: Comes with 10/100M Ethernet port, similar to CP243 functional module, can download monitoring program through network interface, support S7 communication protocol and MODBUS TCP communication protocol


1) Fully compatible with S7 programming software and instruction set.
2) 14 channels of digital input; 10 channels of digital output; 2 channels of analog analog input, built-in DIP switch, voltage or current input can be set; 1 channel of analog output, output voltage and current at the same time.
3) The digital input port adopts bidirectional optocoupler and supports NPN or PNP input.
4) The analog input adopts high-precision AD and rail-to-rail operational amplifier, which can realize low-voltage recognition.
5) 2-channel PPI communication interface, supporting 187.5k baud rate. With one Ethernet port, you can download and monitor programs via Ethernet.
6) Support PPI protocol, Modbus protocol, Freeport protocol, USS protocol, support S7 Ethernet protocol, Modbus TCP protocol.
7) Built-in clock battery, dual-circuit power supply design, support perpetual calendar standby use for more than 2 years.
8) Unbreakable after encryption, completely protect your program.
9) Using FLASH technology, no need for battery support, permanent storage.
10) Anti-reverse connection design for power supply; electrostatic protection design for communication port; analog short-circuit protection.
11) Support PID instruction, which can facilitate users to realize multi-channel PID control.
12) The power board uses solid materials and sufficient power to meet multiple expansion and sensor power supply;
13) After strict industrial field test and environmental test.
14) Transistor model products, support 100K high-speed pulse output.
15) Support 7 external expansion modules, and support mixed use with Siemens modules.


CPU224XP-R-ETH (relay type) wiring diagram

Technical Parameters

Power Consumption7W
Program memory16K
Data storage10K
Digital input14
Digital output10
Digital IO mapping area256(128DI/128DO)
Analog IO mapping area64(32AI/32AO)
Maximum expansion module7
High-speed pulse input6 X 30K
High-speed pulse output2 X 100K
Total number of timers256
Total number of counters256
Analog potentiometer2 X 8Bit
Time interruption2 *1mS resolution
Real Time ClockSupport, built-in battery
Boolean instruction efficiency0.28uS
Floating point instruction efficiency0.75uS
interface2*RS-485,standard PPI communication ports
PPI baud rate9.6k, 19.2k and 187.5kbps
Free port baud rate1.2k-115.2kbps
Maximum cable length per sectionUsing isolated repeater: 187.5kbps up to 1000 meters, 38.4kbps up to 1200 meters; not using isolated repeater: 50 meters
Maximum number of stations32 stations per segment, 126 stations per network
Maximum number of master stations32
Number of interfaces1
ProtocolS7 Ethernet protocol (support server mode)
Modbus TCP protocol (support server and client mode)
Maximum communication distance1000 meters
Input voltageDC24V 20.4-28.8VDC
Input Current100mA
Isolation (field and logic)Not isolated
Sensor voltageL±1V
Current limit1.5A peak 0.7A normal
Ripple noiseDC24V power supply
Isolation (sensor and logic)non-isolated
Digital input characteristics
Integrated digital input14 Input
Input typePNP/NPN bidirectional
Rated voltage24VDC, 4mA
Maximum continuous allowable voltage30VDC
Surge voltage35VDC, 0.5s
Logic 1 voltage range15V-30VDC
Logic 0 voltage range0-5VDC
Input delay0.2-12.8ms can be selected
Isolation (field and logic)Yes
Optical isolation500VDC for 1 minute
High-speed counter input rate30KHZ (single phase)
Simultaneously connected inputsall
Maximum cable length500 meters (standard input)
Digital output characteristics
Integrated digital output10 output
Output typeRelay 5A (resistive)
Transistor sink type 24V DC single channel 0.8A
Rated current of common terminal6A
Resistance (contact)0.2Ω typical (0.6Ω maximum)
Photoelectric isolation (field to isolation)500VAC, 1 minute
Simultaneously connected outputAt 60°C, all outputs (horizontal installation) At 50°C, all outputs (vertical installation)
Two parallel outputsYes, only when the same group is output
Shield500 meters
Analog input characteristics
The machine’s integrated input points2
input methodSingle-ended input
Analog input characteristics0~10V / 0~20mA
input resistanceVoltage type 30K ,current type 120Ω
Data Format0~32000
Resolution12 bits with sign bit
ErrorWorst case, 0° to 55°C ± 2.5% of full scale
Typical, 25°C ±1.0% of full scale
Repeatability ± 0.05% of full scale
Analog to digital conversion time100ms
Analog output characteristics
The machine’s integrated input points1
Output voltage range0~10V
Output current rangeOutput current range0~20mA
Data Format0~32000
ErrorWorst case, 0° to 55°C ± 3% of full scale
Typical, 25°C ±2.5% of full scale
Repeatability ± 1% of full scale
Conversion time50uS
Load capacity0~10V >5KΩ 0~20mA <500Ω
Size (W x H x D)mm150x106x35

Communication interface definition

1Shell GroundShell Ground
2+24V Ground+24V Ground
3RS485 signal ARS485 signal A
4Send application RTSSend application RTS
5+5V Ground+5V Ground
8RS485 signal BRS485 signal B

Analog interface definition

Analog input interface
A+: AIW0 channel,
0-10V or 0-20mA input
M: analog input common terminal
B+: AIW2 channel,
0-10V or 0-20mA input
Note: The analog input supports voltage or current input, which can be selected by the DIP switch on the right. DIP 1 corresponds to A+ channel, DIP 2 corresponds to B+ channel, ON current input, OFF voltage input
V0: AQW0 channel, 0-10V output;
M: analog output common terminal;
B+: AQW0 channel, 0-20mA output;
Note: The analog output channel outputs voltage and current at the same time, both of which are controlled by AQW0

4-20mA Transmitter Wiring Diagram

4-20mA two-wire and three-wire transmitter wiring diagram
Note: Before connecting the current signal, the analog input should be set to the current input mode through the red dial switch

Internal schematic diagram of transistor output


CPU224XP-ETH Review

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