In modern automated production lines, direct internal communication between drives (Master–Slave) without an intermediate PLC is an extremely optimized solution. It increases response speed, reduces control latency, and significantly lowers system programming costs.
Two of the most common and powerful internal communication standards are System Bus (CAN) from Lenze and Peer-to-Peer (P2P) on the Parker AC30 series. So, what are the technical differences between these two technologies in terms of architecture, configuration, and real-world application capability? Let’s put them side by side for a detailed comparison below.
1. Technology Foundation: Classical Fieldbus vs. Modern Industrial Ethernet
The most fundamental difference between these two communication standards lies in the physical layer and data transmission architecture.
Lenze System Bus (CAN): Practical and Robust
Lenze’s internal communication standard is based on a CAN Bus (ISO 11898) physical layer, implemented as a proprietary System Bus solution by the manufacturer.
- Operating Mechanism: The system uses a traditional Fieldbus network architecture, transmitting and receiving data via dynamic PDO (Process Data Objects) configured according to a defined cycle time.
- Transmission Speed: 125 kbps – 1 Mbps
Parker AC30 Peer-to-Peer: High-Speed Communication
In contrast to the traditional Fieldbus approach, Parker has completely upgraded the architecture of the AC30 drive series (specifically models integrated with AC30P or AC30D Control Modules) to an Industrial Ethernet platform.
- Operating Mechanism: The P2P protocol on the AC30 enables true peer-to-peer communication between drives through Multicast/Unicast packet transmission. The system is equipped with hardware-based real-time synchronization compliant with the IEEE 1588 (PTP) standard.
- Transmission Speed: Bandwidth reaches up to 100 Mbps, hundreds of times faster than traditional CAN networks.
2. Comparison of Hardware Wiring and Network Topology
The deployment and installation approaches of these two systems deliver completely different experiences for control panel engineers.
CAN Bus Wiring on Lenze Drives
The Lenze internal network requires a strict daisy-chain wiring topology, connecting drives sequentially from one unit to another using specialized shielded twisted-pair cables.
Important Note: A 120Ω termination resistor must be activated or installed at both ends of the network (at the Master node and the last Slave). Without proper termination, signal reflections will occur, leading to continuous communication errors.
P2P Network Wiring on Parker AC30 Drives
With the integration of dual Ethernet ports on the AC30P/D control board, network connectivity becomes significantly more flexible.
- Network Topology: You can implement a daisy-chain connection using standard RJ45 Ethernet cables (Cat5e or Cat6) without the need to consider termination resistors.
- Branching Capability: The entire AC30 system can be easily connected to a central network switch, enabling centralized management and flexible network branching.
3. Software Configuration: Parameter-Based Setup vs. Intuitive Graphical Interface
Each manufacturer adopts a distinct philosophy for programming and configuration on PC software:
Lenze Approach:
Operators are required to use the EASY Navigator software. Configuration is performed by adjusting parameter codes (Parameter Codes – denoted as “C” or “P”) to assign Node IDs, synchronize Baud rates, and define data mapping for input/output words via CAN-Tx and CAN-Rx channels.
Parker AC30 Approach:
The system is configured in a highly intuitive manner through the graphical interface of the PDQ software. The P2P network is neatly managed using two dedicated function blocks: P2P_TX (data transmission block) and P2P_RX (data reception block). Engineers can simply use drag-and-drop operations to link signal paths between function blocks across different drives within the network diagram.
4. Quick Comparison Table: Lenze CAN Bus vs. Parker AC30 P2P
| Comparison Criteria | Lenze System Bus (CAN) | Parker AC30 Peer-to-Peer |
|---|---|---|
| Physical Layer | Twisted-pair cable (RS485/CAN) | Ethernet cable (RJ45) |
| Network Bandwidth | Up to 1 Mbps | Up to 100 Mbps |
| Termination Resistor | Required (120Ω at both ends) | Not required |
| Configuration Method | Parameter-based (Cxxx / Pxxx codes) | Graphical block linking (P2P_TX / P2P_RX) |
| Application Capability | Basic to mid-level synchronization and load sharing | High-speed synchronization, complex position/phase locking |
🔍Is It Necessary to Migrate from Lenze CAN → Parker AC30 P2P?
In the context of modern industrial machinery—where systems increasingly demand high precision, fast processing speeds, and stable multi-axis synchronization—migrating from the CANopen communication system of Lenze drives to the Peer-to-Peer platform on Parker AC30 represents a strategic upgrade.
The AC30 solution leverages high-speed Ethernet communication combined with IEEE 1588 time synchronization, enabling direct drive-to-drive communication without relying on an intermediate PLC. This significantly reduces latency, enhances synchronization accuracy, and improves the overall performance of the system.
This transition is particularly well-suited for applications such as printing machines, rolling mills, film stretching lines, and multi-axis synchronized conveyor systems—where precise speed control and phase locking are critical requirements. Compared to traditional CAN-based systems, Parker AC30 Peer-to-Peer offers greater scalability, a more optimized control architecture, and improved long-term system stability.
We have successfully implemented numerous retrofit projects migrating from Lenze to Parker AC30, enabling customers to upgrade their systems without replacing the entire machinery. At the same time, we ensure fast commissioning, stable operation, and ease of maintenance in the long run. If you are looking for a modern solution to upgrade your industrial drive system, Parker AC30 Peer-to-Peer is the optimal choice.
Contact Us for Consultation & Implementation
We provide:
- System assessment and evaluation
- Tailored solution consulting based on real applications
- Drive system design, programming, and implementation
- Commissioning, testing, and handover
- Post-project technical support
Our experienced engineering team is always ready to support you in modernizing your machinery, improving performance, and enhancing system reliability.
Hotline: +84 908 353 714
Email: info@kythuatviet.vn
👉 Contact us today to receive the most suitable solution for your system.
