Controllers MELSEC-L Series
Product features -CPU-
Expand L Series systems with no base unit restrictions
L Series modules do not require a base unit. The installation space is not restricted by base size, and the system can be installed with minimal required space.
Furthermore, the addition of modules to the system is not restricted by the number of available base unit slots and costs may be reduced due to the elimination of extension base units.
Installation space is reduced in the control panel
Identify important information easily
Every L Series module has the serial number printed on the front surface of the module to allow viewing even during system operation (modules do not need to be removed).
Serial numbers can also be checked using GX Works2.
System expandable according to production equipment scale
Up to three extension blocks connectable to the main block using branch and extension modules. A maximum of 40 modules*1 caters a wide range of production equipment and line scale.
| CPU module*2 | Number of extension blocks |
Number of connectable modules*3 |
|---|---|---|
| L02SCPU(-P) L02CPU(-P) |
Up to 2 blocks | Main block: 10 modules Extension block: 11 modules |
| L06CPU(-P) L26CPU(-P) L26CPU-(P)BT |
Up to 3 blocks |
- *1.In the case of L06CPU(-P), L26CPU(-P), and L26CPU-(P)BT.
- *2.CPU modules whose first five serial number digits are 13072 or later.
- *3.Total number of I/O modules, intelligent function modules, network modules and branch modules.
This does not include the following: Power supply, CPU, display units, extension modules, RS-232 adapter, RS-422/485 adapter, and END covers.
When adding a branch module to a fully occupied block, relocate one of the other modules to a new block to give way to the branch module.
■ Example of largest system configuration of L26CPU-BT
- *4.Total number of I/O modules, intelligent function modules and network modules, excluding branch modules.
Well-organized control panel with minimum wiring
Branch module can be strategically placed in a block to minimize wiring space. Extension cables are available in 0.6-, 1.0- and 3.0-m. The maximum extension length is 3.0 m*5.
The extension cable is a one-touch type which can be easily connected and disconnected.
- *5.The total length of extension cables should be within 3.0 m.
■ Example of vertical system configuration
■ Example of horizontal system configuration
■ Example of vertical and horizontal mixed system
■ Installation position when branch or extension module is used
| Modules | Installed block | Possible installation position |
|---|---|---|
| Branch module | Main block | Right side of CPU module or left side of END cover |
| Extension block | Right side of extension module or left side of END cover | |
| Extension module | Main block | Not applicable |
| Extension block | Right side of power supply module |