Mitsubishi AJ65SBTB1-16D Remote I/O Unit Series

AJ65: CC-Link remote I/O unit serie

SBT: CC-Link remote module

B1: Compact terminal block type

16D: 16-point DC digital input module (Ingresso digitale)

Posizionamento: CC-Link remote input station, occupante 1 station address. It is used for remote DI signal acquisition, compatible with Q/A/L series master PLCS, and is one of the most widely used remote DI modules for CC-Link fieldbus.

Specifiche tecniche principali

Linee guida per il cablaggio

1. Morsettiera: 16 DI channels + COM terminal. COM supports both positive and negative common, so NPN and PNP sensors can be wired directly.
2. Bus terminals: E, DB (CC-Link signal lines) + FG shield earth.
3. Alimentazione elettrica: Module powered by DC24V. Use the same power supply for the module and sensors, and keep common ground.
4. Terminating resistor: Install 110Ω CC-Link terminating resistor at the first and last stations on the bus.
5. Station address setting: Set the CC-Link station number (1~64) via the DIP switch on the side of the module; settings take effect after power cycle.

Scenari applicativi

Distributed DI acquisition on production lines: Photoelectric sensors, interruttori di prossimità, pulsanti, limit switches and E-stop signals collected remotely.

Cabinet split wiring: Main PLC installed in central control cabinet; AJ65SBTB1-16D mounted locally on equipment control boxes to eliminate long-distance multi-core cables, only one CC-Link bus cable is needed.

Compatible master stations: Q, UN, L series PLCs (with CC-Link master modules QJ61BT11N / AJ61BT11, ecc.)

Software di programmazione: GX funziona2 / GX funziona3. Configure remote I/O stations in CC-Link network parameters; remote input soft elements are assigned automatically.

Risoluzione dei problemi

1. RUN indicator off: Check DC24V power supply and polarity.
2. LERR indicator flashing: Numero di stazione duplicato, bus breakage, DA/DB reversed, missing terminating resistor, or communication interference.
3. No input signal: Check sensor power supply, COM wiring, input voltage, or damaged optocoupler.
4. Input permanently ON: Shorted sensor or short circuit to ground on field wiring.

Sostituzione & Cross-model Reference

AJ65SBTB1-16D1: 16DI with faster 0.2ms response (high-speed version).

AJ65SBTB1-32D: 32-point DC input (stessa serie, 1 station occupied).

AJ65SBTB1-16DT: Mixed 8DI+8DO I/O module.

New generation replacement: NZ2GF2B1-16D (CC-Link IE Field Basic remote DI, consigliato per nuovi progetti).

Engineering Application Cases for AJ65SBTB1-16D

Posizionamento centrale: 16-point DC24V digital input remote station over CC-Link, distributed field DI collection to reduce extensive hardwiring. Compatible master stations: Q/L/A series PLC + QJ61BT11N, FX3U+FX3U-16CCL-M, FX5+FX5-CCL-MS; one module occupies one CC-Link station address.

Caso 1: Pushrod Accumulating Conveyor with Wire Breakage Detection (Diagnostic Type)

1. Transistor Output Modules (FARE, T=Transistor, Sink/NPN Type)

8-point Output

7. AJ65SBTB1-8T: 8-point transistor output, 1.5ms response
8. AJ65SBTB1-8T1: 8-point low leakage current version
9. AJ65SBTB1-8TE: 8-point with protective circuit

16-point Output

10. AJ65SBTB1-16T: 16-point standard transistor output
11. AJ65SBTB1-16T1: 16-point low leakage current version

32-point Output

12. AJ65SBTB1-32T: 32-point transistor output
13. AJ65SBTB1-32T1: 32-point low leakage current
14. AJ65SBTB1-32TE1: 32-point enhanced protection version

III. Moduli I/O misti (DI+DO, DT=Input+Output)

16-point Mixed (8DI+8DO)

15. AJ65SBTB1-16DT: Standard 8DI+8DO
16. AJ65SBTB1-16DT1: High-speed response version
17. AJ65SBTB1-16DT2: With wire breakage diagnosis
18. AJ65SBTB1-16DT3: High-reliability revised version (most popular new model)

32-point Mixed (16DI+16DO)

19. AJ65SBTB1-32DT: Standard 16DI+16DO
20. AJ65SBTB1-32DT1: Versione ad alta velocità
21. AJ65SBTB1-32DT2: With wire breakage detection (KDT type)
22. AJ65SBTB1-32KDT2: Wire breakage diagnosis + protezione da cortocircuito
23. AJ65SBTB1-32KDT8: 32-point mixed, high diagnostic grade
24. AJ65SBTB1-32DT3: Revised stable model
25. AJ65SBTB1-32DTE1: With surge absorption protection-
26. Suffix Code Rules (Identificazione rapida)

Nessun suffisso: Standard response time 1.5ms

1: Risposta ad alta velocità (0.2SM); low leakage current output

2: Wire breakage diagnosis function

3: Revised circuit, improved anti-interference performance

K: Wire breakage detection (diagnostic module)

E: Output surge protection added

1. Distinction Between Adjacent Series (Avoid Wrong Selection)
2. AJ65SBTB1: Single-row terminal block, compact type (this series)
3. AJ65SBTB2: Double-row terminals, higher output current
4. AJ65SBT32: Large-size 32-point remote I/O
5. AJ65SBTC1/C4: Terminali a molla (tipo plug-in, not part of TB1 series)
6. Simplified Selection Table for Project Use