Description
The Mitsubishi QJ61BT11N is a CC-Link Master / Local Station (Remote Device) interface module for the MELSEC-Q Series PLC rack. It enables the Q CPU to act as:
- CC-Link Master (Head Station): Control up to 64 CC-Link Remote I/O, Remote Device (Inverter/Servo with CC-Link), and Local Station nodes on a single CC-Link network (Ver. 1.10 compatible — up to 64 stations total, max 2048 points I/O depending on occupied stations).
- CC-Link Local Station (Slave): If configured as a slave, another CC-Link Master (QJ61BT11N in Master mode or other vendor Master) can read/write its assigned area — used for inter-PLC data exchange over CC-Link.
The module connects via RS-485-based CC-Link dedicated cable (twisted pair + shield — DA/DB + DG (shield drain)) with baud rates from 156 kbps up to 10 Mbps (distance decreases with higher baud — 10 Mbps ≈ 100 m max; 156 kbps ≈ 1.2 km max — check CC-Link spec).
It is configured in GX Works2 → Parameter → Network Parameter → CC-Link (double-click the QJ61BT11N I/O slot row) — set Master/Local, Station No., Baud Rate, Occupied Stations (for Remote I/O: 1 station = 32 inputs + 32 outputs; Remote Device can occupy 1–4 stations), and Remote I/O assignment auto-maps to X/Y areas in the Q CPU.
Key Features
- Network Type: CC-Link IE Field? ❌ No — this is CC-Link (dedicated RS-485-based — Ver.1.10 backward compat. with older CC-Link V1.00 nodes) — NOT CC-Link IE (Ethernet-based — that’s QJ71GF□-□ for IE Field / IE Control).
- Mode: Master (controls network) OR Local Station (slave — data exchange only)
- Max. Stations: 64 total (Master mode — up to 64 remote nodes)
- Baud Rate: 156 k / 625 k / 1.25 M / 2.5 M / 5 M / 10 M bps (selectable)
- Cabling: Dedicated CC-Link cable (twisted pair + shield — DA/DB/DG) or general 110Ω–130Ω shielded twisted pair (recommended: Mitsubishi A6CON-□ or generic 120Ω STP)
- Diagnostics: RUN/ERR LEDs, Network Status monitor via special relays (SM) & buffers (BFM)
- Country of Origin: Japan (Mitsubishi Electric)
Model & Variant Reference (Q Series CC-Link / Network Modules — Contrast)
Model | Network | Function | Best For |
|---|---|---|---|
QJ61BT11N (listed) | CC-Link (RS-485 based V1.10) | Master / Local Station (Remote Device) | Connecting Q PLC to CC-Link Remote I/O, Inverters (FR-A700 with FR-A7NC), Servo (MR-J3/MR-J4 with CC-Link I/F), Other Q/L PLC as Local Station |
QJ71GF-SB □ / QJ71GP21-SX | CC-Link IE Field / IE Control (Ethernet-based Gigabit) | Master / Local (IE Field) or Control Station (IE Control) | High-speed gigabit field networks — NOT interchangeable with QJ61BT11N! |
QJ71C24N | Serial (RS-232/422) | — | Not network — serial comms only — do NOT confuse with BT11N! |
AJ61QBT11 (A Series) | CC-Link (older A-Q hybrid) | Master/Local | Legacy A-Series rack — Q-series prefers QJ61BT11N |
⚠️ Critical Fit & Wiring Notes:
Technical Specifications (QJ61BT11N — CC-Link Master / Local Station Module)
Parameter | Specification |
|---|---|
Model / Order Code | QJ61BT11N (Mitsubishi MELSEC-Q CC-Link Interface Module) |
Network Standard | CC-Link (RS-485 based — Ver. 1.10 compliant, backward compat. Ver 1.00) |
Function | Master (Head Station) / Local Station (Remote Device — slave mode) |
Max. Connected Stations | 64 total (Master mode — includes Remote I/O + Remote Device + Local Stations) |
Baud Rate (Selectable) | 156 kbps / 625 kbps / 1.25 Mbps / 2.5 Mbps / 5 Mbps / 10 Mbps |
Max. Cable Length (10 Mbps) | ~ 100 m (shielded twisted pair, 120Ω) — longer at lower baud (156 kbps ~ 1.2 km) |
Cable Interface | 5-pin removable screw terminal (DA, DB, DG, SL, FG) — DA/DB = signal pair, DG = drain/shield ground, SL = shield, FG = frame ground |
Termination Resistor | NOT built-in — requires external 130Ω (typ. 120Ω) across DA-DB at both ends of daisy chain |
Isolation (CC-Link ↔ Bus) | Photocoupler (signal lines) + surge protector |
Backplane Current Draw (5V) | ~ 0.3 A (typical — check Q PS capacity) |
Mounting | Q Series base unit (any I/O slot after CPU + PS) |
Dimensions (W×H×D) | 27.4 mm × 98 mm × 95 mm (standard Q single-width module) |
Weight | ~ 0.15 kg |
Operating Temp. | 0 … +55 °C (no freezing/dewing) |
Standards | CE, UL, cUL, KC, RoHS |
Software | GX Developer / GX Works2 / GX Works3 (QnU CPU — config via Network Parameter → CC-Link) |
Warranty & After-Sales
- Factory new units: 12 months warranty
- Refurbished units: 3-6 months warranty (CC-Link link test — connect to test remote I/O node → verify RX/RY mapping in monitor mode)
- Technical support for:
- GX Works2 CC-Link parameter setup (Master vs Local, Station No., Baud, Occupied Stations, Remote I/O Assignment → X/Y mapping)
- Cable selection (A6CON-□ dedicated cable or 120Ω STP — pinout DA/DB/DG)
- Termination resistor placement (130Ω across DA-DB at both physical ends — NOT on intermediate nodes)
- Troubleshooting (ERR LED codes — Station No. conflict, baud mismatch, open wire — use “CC-Link Diagnosis” in GX Works2)
- Cross-ref to CC-Link IE modules (QJ71GF□□-SB / QJ71GP21-SX) if migrating to Ethernet-based CC-Link IE
- Inter-PLC link via CC-Link (two Q racks each with QJ61BT11N — one Master, one Local Station — data exchange setup)
- Optional CC-Link cables (A6CON-□), termination resistors (A6CON-R□), and branch taps (A6CON-T□)
Delivery Time
- Standard delivery: 3-5 working days (stock items)
- Express shipping available upon request
Why Choose Our Store
- Genuine Mitsubishi MELSEC-Q CC-Link modules — not clones with timing skew causing link errors
- Global supply network with competitive pricing
- Expertise in CC-Link network design (master/slave config, I/O mapping, termination, troubleshooting ERR LED)
- Comprehensive technical documentation (5-pin terminal pinout, GX Works2 CC-Link param screenshot, terminator placement diagram)
- Responsive customer service and support
Applications
- Remote I/O Expansion: Connect Q CPU to distributed AJ65BTB□-□ / AJ65SBTB□-□ Remote I/O blocks on machine — saves long multi-core cables.
- Inverter / Servo Control: Control Mitsubishi FR-A700 (with FR-A7NC CC-Link option) or MR-J3/J4 servo (with MR-J3□-□-A□ / MR-J4-D□ CC-Link I/F) — start/stop, speed reference, alarm read via CC-Link RWr/RWw.
- Multi-PLC Link: Two Q PLCs exchange data via CC-Link (one Master, one Local Station QJ61BT11N) — simpler than MELSECNET/H for small data sets.
- Third-Party CC-Link Nodes: Many Asian/international devices support CC-Link (some weigh scales, vision systems, robots) — integrate as Remote Device.
- Retrofit / Spare: Drop-in replacement for failed QJ61BT11N — same article number → download network params → restart.
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