Industrial Technical Report – 1756-SYNCH ControlLogix SynchLink Synchronization Module
Product Overview
The 1756-SYNCH is a ControlLogix SynchLink communication module used for high-speed synchronization and coordinated motion control across multiple controllers and chassis. It enables precise time alignment and deterministic data exchange in distributed automation systems.
This module is designed to support real-time axis coordination, system-wide time synchronization, and high-speed data transfer between ControlLogix controllers. It is widely used in motion-intensive applications where multiple control nodes must operate in perfect synchronization.
The module operates using fiber-optic SynchLink communication, ensuring stable and low-latency data transfer across industrial environments.
Brand Information
The product belongs to a globally recognized industrial automation ecosystem specializing in programmable logic controllers, motion control systems, distributed control architectures, and industrial communication technologies.
It is widely applied in:
- Industrial automation systems
- Motion control and robotics systems
- Process synchronization environments
- Packaging and high-speed manufacturing systems
- Energy and infrastructure automation
Key characteristics include:
- High-speed synchronized communication
- Deterministic motion data exchange
- Fiber-optic transmission technology
- Industrial-grade reliability
- Multi-chassis synchronization capability
Product Series
ControlLogix SynchLink Communication System
The 1756-SYNCH belongs to the ControlLogix SynchLink family, a dedicated synchronization solution for distributed motion and time-critical systems.
Key system features include:
- Fiber-optic SynchLink communication (5 Mbps)
- Coordinated System Time (CST) synchronization
- Multi-axis motion data transfer
- Master-slave time synchronization architecture
- Multi-chassis distributed control support
Supported functions include:
- Remote axis coordination
- Drive-to-drive synchronization
- Cross-chassis motion planning
- High-speed control data exchange
The module is essential for applications requiring synchronized automation across multiple controllers.
Technical Parameters
Detailed Specification Table
| Parameter |
Specification |
| Model |
1756-SYNCH |
| Product Type |
SynchLink Communication & Synchronization Module |
| Series |
ControlLogix SynchLink |
| Function |
Time synchronization & motion data transfer |
| Communication Method |
Fiber-optic SynchLink |
| Data Rate |
5 Mbps |
| Channels |
1 fiber channel (Tx/Rx pair) |
| Ports |
1 Tx + 1 Rx fiber port |
| Synchronization Type |
CST + SynchLink node clock |
| Supported Data |
Axis data, buffered data, direct words |
| Motion Control Support |
Coordinated multi-axis control |
| Time Sync Accuracy |
Sub-microsecond level (system dependent) |
| Backplane Current (5V DC) |
~1.0–1.2 A |
| Backplane Current (24V DC) |
~3 mA |
| Power Consumption |
~6 W |
| RIUP Support |
Yes (hot swap capable) |
| Mounting Type |
ControlLogix chassis slot |
| Slot Width |
1 slot |
| Operating Temperature |
0°C to 60°C |
| Storage Temperature |
-40°C to 85°C |
| Humidity Range |
5%–95% non-condensing |
| Vibration Resistance |
Industrial grade |
| Shock Resistance |
Industrial rated |
| Certifications |
CE, UL, CSA, Class I Div 2 |
| Dimensions |
13.5 × 11.0 × 14.0 cm |
| Weight kg（ ） |
~0.25–0.40 kg |
Product Description
The 1756-SYNCH is designed to provide deterministic synchronization across distributed ControlLogix systems. It acts as a communication bridge that ensures multiple controllers operate under a unified time reference.
The module uses SynchLink fiber communication to transmit both time reference signals and motion-related data, allowing multiple axes and controllers to behave as a single coordinated system.
It plays a central role in high-speed automation where precise timing alignment is essential.
Product Applications
Motion Control Systems
Used in:
- Multi-axis robotics
- Coordinated servo systems
- Packaging machinery
- High-speed assembly lines
Distributed Control Systems
Applied in:
- Multi-chassis PLC architectures
- Synchronized production systems
- Modular automation plants
- Remote control systems
Industrial Manufacturing
Used in:
- Semiconductor manufacturing
- Automotive production lines
- Printing and converting machines
- High-speed sorting systems
Energy & Utilities
Used in:
- Power plant synchronization systems
- Substation automation
- Turbine control systems
- Grid coordination systems
Process Industries
Used in:
- Chemical plants
- Pharmaceutical manufacturing
- Continuous process control systems
- Batch production systems
Product Advantages
1. High-Speed Synchronization
Ensures precise timing across multiple controllers.
2. Deterministic Motion Control
Supports coordinated multi-axis operations.
3. Fiber-Optic Communication
Eliminates electromagnetic interference.
4. Multi-Chassis Coordination
Enables distributed system synchronization.
5. Flexible Data Handling
Supports axis, buffered, and direct data transfer.
6. Hot-Swap Capability
Supports removal and insertion under power (RIUP).
Recommended Models (Same Series or Related)
ControlLogix SynchLink & Related Modules
| Model |
Type |
Function |
Key Feature |
Dimensions |
Weight kg（ ） |
| 1756-SYNCH |
SynchLink Module |
Motion sync |
5 Mbps synchronization |
13.5×11.0×14.0 cm |
0.25 kg |
| 1756-M02AE |
Motion Module |
Axis control |
Servo motion interface |
14×13×4 cm |
0.30 kg |
| 1756-M03SE |
Motion Module |
SERCOS control |
Multi-axis servo control |
14×13×4 cm |
0.32 kg |
| 1756-EN2TR |
Ethernet Module |
Network comms |
Industrial Ethernet/IP |
13×14×12 cm |
0.48 kg |
| 1756-L85E |
PLC Controller |
Processing unit |
High-performance CPU |
15×14×13 cm |
0.65 kg |
| 1756-CN2R |
ControlNet Module |
Network bridge |
Redundant network comms |
13×14×12 cm |
0.55 kg |
Recommended Popular Models (Same Platform Ecosystem)
Widely Used ControlLogix Modules
| Model |
Function |
Network |
Role |
Dimensions |
Weight kg（ ） |
| 1756-L85E |
PLC Controller |
EtherNet/IP |
Main processor unit |
15×14×13 cm |
0.65 kg |
| 1756-EN2TR |
Ethernet Module |
EtherNet/IP |
Industrial communication |
13×14×12 cm |
0.48 kg |
| 5069-L320ER |
Advanced PLC |
EtherNet/IP |
High-performance control |
13×10×9 cm |
0.54 kg |
| 1734-AENTR |
I/O Adapter |
EtherNet/IP |
Remote I/O gateway |
7×7×7 cm |
0.20 kg |
| 1769-L36ERM |
Compact PLC |
Ethernet |
Mid-range controller |
15×11×10 cm |
0.75 kg |
Installation Notes
Proper installation ensures accurate synchronization performance across the system.
Key requirements:
- Correct fiber optic connection (Tx/Rx matching)
- Maintain clean optical connectors
- Ensure stable chassis grounding
- Avoid excessive vibration on fiber routing
- Verify system configuration in controller software
Maintenance Characteristics
- Low maintenance requirement
- Hot-swappable module design
- High operational reliability
- Long lifecycle performance
- Minimal failure points
Final Summary
The 1756-SYNCH is a SynchLink synchronization module designed for ControlLogix systems requiring precise time alignment and coordinated motion control across multiple controllers.
Its key value lies in deterministic fiber-optic communication, multi-axis synchronization, and distributed control capability, making it essential for high-speed industrial automation systems where timing accuracy directly impacts performance.
