3 Rx+ Rx+_D2
4 - BI-_D3
5 - BI+_D3
6 Rx- Rx-_D2
7 - BI-_D4
8 - BI+_D4
Cable requirements
Category: Cat 5 or higher
Maximum length: 100 meters
Recommend using shielded twisted pair cable (STP)
3.3 CAN interface
Supported models: XC-204-C11-003, XC-204-C21-001, XC-303-C11-001, XC-303-C21-001, XC-303-C32-002
Technical Specifications
Baud rate: 50/100/125/250/500/1000 kbit/s
Equipment specification: Compliant with DS301 V4
29 bit identifier: Supports
PDO type: asynchronous, synchronous, non cyclic
Connector: 3-pin spring terminal block
terminating resistor
Resistance: 120 Ω
Activation method: via DIP switch (CAN1 corresponds to TC1, CAN2 corresponds to TC2)
Relationship between cable length and baud rate
Maximum cable length for baud rate
50 kbaud 1000 m
100 kbaud 600 m
125 kbaud 500 m
250 kbaud 250 m
500 kbaud 100 m
800 kbaud 50 m
1000 kbaud 25 m
3.4 RS485 interface
Supported models: XC-204-C11-003, XC-204-C20-002, XC-303-C21-001, XC-303-C32-002
Technical Specifications
Connector: 3-pin spring terminal block
Transmission rates: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 bit/s
Protocol support: Modbus RTU (master/slave), EVENT/ODD/ONE checksum, 1 or 2 stop bits
Terminal resistance: 120 Ω, activated through DIP switch
3.5 USB interface
Technical Specifications
Type: USB 2.0 Host Type A
Output voltage: 5 V DC
Maximum current:
XC-104/204:500 mA
XC-303:100 mA
Cable length: maximum 5 meters (shielded cable)
function
Load user program
Update the operating system
Store external data (FAT32 file system)
3.6 Local I/O
XC-204 Local I/O
Input/output quantity: 2 configurable DI/DO
Power supply: System power supply (V+)
Current: Maximum 0.5 A per channel
Input delay:<0.2 ms
Output delay: Typical 0.1 ms
Short circuit protection: Yes
XC-303 Local I/O
Input/output quantity: 4 configurable DI/DO
Power Supply: External Power Supply (Terminal X2/UL)
Current: Maximum 0.5 A per channel
Total current: 2 A maximum
Input delay:<0.2 ms
Output delay: Typical 0.1 ms
Short circuit protection: Yes
Potential isolation: isolated from the system bus

Chapter 4 Installation and Wiring
4.1 Installation Requirements
Layout of control cabinet
The power supply and control parts are arranged separately
Steel plate partitions can be used to reduce interference
Ensure sufficient ventilation
Ventilation requirements
Minimum distance from passive components: 50 mm
Minimum distance from active components: 75 mm
Installation steps
Place XC-303 at the far left of the system block (XC-104/204 does not require this)
Connect the XN300 module from the right side and ensure that the locking buckle is engaged with the guide rail
Push the front cover forward to ensure that the modules are securely locked together
Pull up all locking components
Tilt the system block onto the lower edge of the DIN rail
Push the system block towards the upper edge of the DIN rail and lock it downwards
4.2 Connecting terminals
Specification of wiring terminals
Type: Spring type terminal block
Wire type:
Solid wire: 0.2-1.5 mm ²
Flexible wire (uninsulated end): 0.25-1.5 mm ²
Flexible wire (with insulated end): 0.25-0.75 mm ²
AWG:24 - 16
Stripping length: 10mm
Diameter of crimping sleeve: ≤ 2.8 mm
4.3 Power Connection
XC-303 power supply
Terminal X6: V+/0V, 24 VDC
Power the XN300 modules on the processor unit and all system buses
XC-104/204 power supply
Terminal X4: V+/0V, 24 VDC
Power the XN300 modules on the processor unit and all system buses
Local output power supply (XC-303)
Terminal X2: UL+/UL -, 24 VDC external power supply
Power supply for local output Q1-Q4
4.4 Potential relationship
XC-303
The system power supply (X6) consists of the processor, system bus CAN、RS485、 Power over Ethernet
Local output power supply (X2/UL) is isolated from the system power supply potential
CAN1 interface isolated from system power supply potential
XC-204
The system power supply (X4) provides power to all components
No potential isolation
4.5 EMC compatible wiring
Cable classification
Power cables: high current power lines, contactor coil lines, etc
Control and signal cables: digital input cables
Measurement and signal cables: fieldbus cables
Wiring principles
Power cables and signal cables should be routed separately as much as possible
Minimum spacing: Power cables and signal cables ≥ 10cm, and data/analog cables ≥ 30cm
The return wires of a pair of circuits should be routed in parallel
Shielding Grounding
The data interface must use shielded cables
Large area low impedance grounding at both ends of the shielding layer
4.6 Suppression Circuit
For inductive loads (contactors, relays, solenoid valves), it is recommended to install suppression circuits (RC suppressors or freewheeling diodes) directly on the load to prevent high induced voltage interference with the system during switching.
Chapter 5 Programming and Debugging Environment
5.1 Programming software
The XControl series PLC uses XSOFT-CODESYS-3 programming software (version 3.5.9 or higher). This software is based on the CODESYS V3 platform and provides complete support for the IEC 61131-3 programming language.
Main functions
Project Creation and Management
Equipment configuration and parameterization
Network communication configuration
Online debugging and monitoring
Firmware Update