Title: MITSUBISHI QJ61BT11N MELSEC-Q CC-Link Master/Local Station Unit - High-Speed Field Network

Product Overview: The Mitsubishi QJ61BT11N is a crucial communication unit from the MELSEC-Q Series of Programmable Logic Controllers (PLCs), designed to act as both a master and a local station on a CC-Link network. CC-Link (Control and Communication Link) is a high-speed, high-reliability deterministic I/O control network that significantly reduces wiring while offering multi-vendor compatible products, making it a global standard in industrial automation. This module facilitates efficient and real-time data exchange between the MELSEC-Q series PLC and various distributed field devices such as remote I/O modules, intelligent device stations, and other controllers. The QJ61BT11N supports various transmission speeds up to 10 Mbps, ensuring fast and reliable communication for demanding industrial applications, from manufacturing to process control. Its robust protocol and standby master function enhance system redundancy and availability, contributing to improved overall system performance and reduced installation complexity.

Key Features & Benefits:

CC-Link Master/Local Station: Functions as both a master and a local station on a CC-Link network, offering flexible network configurations.
High-Speed Communication: Supports selectable transmission speeds of 156 kbps, 625 kbps, 2.5 Mbps, 5 Mbps, and 10 Mbps, ensuring fast and real-time data exchange.
Reduced Wiring: Enables a significant reduction in wiring complexity and costs by connecting multiple devices via a single CC-Link dedicated cable.
Deterministic Performance: Guarantees fast and predictable data transmission, crucial for synchronized control in industrial automation.
Flexible Network Topology: Supports a bus (RS-485) network topology, allowing for flexible placement of field devices.
Extensive Link Points: Supports a large number of remote I/O points (up to 2048 for Ver.1, 8192 for Ver.2) and remote registers, accommodating complex systems.
Standby Master Function: Enhances system redundancy and availability by allowing other CC-Link stations to take over network control if the master fails.
Robust Protocol: Features HDLC compliant transmission format and CRC error control for reliable and secure data transfer.
Compact Design: Its narrow dimensions (27.4 mm width) save valuable space within control cabinets.
Easy Integration: Simple setup with Mitsubishi Q Series PLCs, often requiring no complex programming for basic connectivity.
International Compliance: Compliant with CE, UL/cUL, EAC, and UKCA standards, ensuring global usability and safety.
 
Applications:
The Mitsubishi QJ61BT11N CC-Link Master/Local Station Unit is widely used in various industrial automation and control systems that require efficient, high-speed, and reliable fieldbus communication. Its capabilities make it suitable for a broad range of demanding applications, including:

Manufacturing Automation: Connecting PLCs to distributed I/O modules, sensors, and actuators on production lines.
Process Control: Enabling real-time data exchange in chemical, pharmaceutical, food and beverage, and water/wastewater treatment plants.
Machine Control: Facilitating communication between the main PLC and various intelligent devices such as variable speed drives, servo systems, and specialized modules within complex machinery.
Material Handling Systems: Used for controlling and monitoring conveyors, automated guided vehicles (AGVs), and robotic cells.
Automotive Industry: Implementing distributed control for assembly lines, welding robots, and painting systems.
Building Automation: For connecting various field devices in large industrial or commercial building management systems.
Energy Management Systems: Facilitating data collection from remote sensors and control of power distribution units.
Any application requiring reduced wiring and multi-vendor compatibility through an open field network standard.
 
Technical Specifications:

Part Number: QJ61BT11N
Manufacturer: Mitsubishi Electric
Product Series: MELSEC-Q Series
Type: CC-Link Master/Local Station Unit / Communication Module
Communication Protocol: CC-Link Ver.2 compatible
Transmission Speed: Selectable from 156 kbps, 625 kbps, 2.5 Mbps, 5 Mbps, 10 Mbps
Maximum Overall Cable Distance: Varies by transmission speed (e.g., 1200m at 156kbps, 100m at 10Mbps using Ver. 1.10 cable)
Max Number of Connected Stations: 64 stations (as master)
Number of Occupied Stations: 1 to 4 stations (as local station)
Max Number of Link Points (per system):
CC-Link Ver.1: Remote I/O (RX, RY): 2048 points; Remote Register (RWw, RWr): 256 points each.
CC-Link Ver.2: Remote I/O (RX, RY): 8192 points; Remote Register (RWw, RWr): 2048 points each.
Number of Link Points per Station (CC-Link Ver.2):
Single cyclic setting: RX, RY: 32 points; RWw, RWr: 4 points each.
Octal cyclic setting: RX, RY: 128 points; RWw, RWr: 32 points each.
Communication Method: Broadcast polling method
Synchronization Method: Frame synchronization method
Encoding Method: NRZI method
Network Topology: Bus (RS-485)
Transmission Format: HDLC compliant
Error Control System: CRC (X16 + X12 + X5 + 1)
Communication Cable: CC-Link dedicated cable (Ver.1.10 compatible recommended)
Number of Occupied I/O Points (on PLC rack): 32 points (Intelligent 32 points)
Internal Current Consumption (5 V DC): 0.46 A
External Dimensions (H x W x D): 98 mm (3.86 in) x 27.4 mm (1.08 in) x 90 mm (3.54 in)
Weight: 0.12 kg (0.26 lbs)
Operating Temperature: 0 to 55 °C
Storage Temperature: -20 to 75 °C
Relative Humidity: 10 to 90 %RH, non-condensing
Certifications: CE, cULus, KC (EMC), LR, NK, DNV, ABS, BV, UKCA
Product Lifecycle: Standard selling status.