CC-Link/LT offers high performance and reduced wiring
It is designed for implementation in sensors and actuators and other reduced I/O applications. It
simplifies and minimises wiring for field devices and within control panels. CC-Link/LT uses the
same open technology of CC-Link. It provides openness, high-speed operation and excellent
noise resistance.
Other benefits include
- Choice of devices from multi-vendors to improve the flexibility of system construction.
- Slave stations have no need for setting network transmission speed.
- Excellent noise immunity results.
- "One-touch" connector enables a fast reliable connection to the communication cable
- without the need for special tools.
- A specially-designed flat network cable carries both signal and power wiring, eliminating wiring errors, reducing installation time and wiring costs.
- CC-Link/LT devices can be treated as "local" I/O.
CC-Link/LT link scan time(at 2.5Mbps)
CC-Link/LT Control Specification
| Item | 4-point mode | 8-point mode | 16-point mode | ||
|---|---|---|---|---|---|
| Maximum number of I/O points | 512 (256 Input & 256 Output) |
1024 (512 Input & 512 Output) |
2048 (1024 Input & 1024 Output) |
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Maximum number of I/O points |
8 points (4 Input & 4 Output) |
16 points (8 Input & 8 Output) |
32 points (16 Input & 16 Output) |
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| Link scan time (ms) |
Network with |
2.5 Mbps | 0.7 ms | 0.8 ms | 1.0 ms |
| 625 kbps | 2.2 ms | 2.7 ms | 3.8 ms | ||
| 156 kbps | 8.0 ms | 10.0 ms | 14.1 ms | ||
| Network with 64 stations |
2.5 Mbps | 1.2 ms | 1.5 ms | 2.0 ms | |
| 625 kbps | 4.3 ms | 5.4 ms | 7.4 ms | ||
| 156 kbps | 15.6 ms | 20.0 ms | 27.8 ms | ||
CC-Link/LT wiring specification
Communication Specification
| Transmission rate (bps) | 2.5 M | 625 k | 156 k |
|---|---|---|---|
| Maximum Cable Length | 35M (Trunk) + 15M (Branch) |
100M (Trunk) + 50M (Branch) |
500M (Trunk) + 200M (Branch) |
| Communication Method | BITR method (Broadcast polling + Interval Timed Response) |
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| Network Topology | T-Branch |
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| Error Detection Method | CRC |
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| Maximum number of Slave Stations | 64 |
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| Maximum number of modules per branch line | 8 |
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| Distance between stations Distance between T-Branch Line connections |
Limited only to the maximum cable length (no minimum connection limitation) |
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| Master Station physical connection position |
Connected at one end of the Trunk line |
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| RAS Functions |
Network diagnostics, internal loop-back diagnostics, slave station seperation, automatic return to system |
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| Connection cabel types |
Dedicated Flat cable (0.75mm 2 x 4), VCTF cable, Flexible cable |
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