K120S series (economy)
Short description:
The MASTER-K (Ε) series is a powerful version at a competitive price.
Smooth and fast control of devices, ideal for low-requirement applications.
The K120S series supports multiple digital I/O 
with 10/14/20/30 points and is limited to program memory.

Main features:
International (IEC61131-3) Programming Language LD, IL
- Ladder Diagram (LD)
- Instruction List (IL)
Types of main units : 32 
- 10/14/20/30 points
- AC power supply, DC input, relay/transistor output and analog 0-10V/0-20mA/4-20mA
Multiple types of expansion units
Total I/O control points (max. binary): 90 

Program memory capacity
- 2,000 steps / 14kB
High-speed processing 
- 0.3μs/step
Battery-less backup
- Program backup: EΕPROM
- Data backup: Super capacitor
  (more than 2,000h at ambient temperature)
Communication
- RS-232: 1 channel, RS-232 or RS-485
- MODBUS ASCI/RTU, Cnet (LGIS), user mode
Built-in functions
- High-speed counter (32 bits)
- 1 phase: 20KHz 2 channels
- 2 phase: 10KHz 1 channel

Economic main modules specification (only MK-120S)