I. Introduction
SP1S series is suitable for small-scale control, the size of only one card so much PLC.
SP1S series as a small PLC, but has perfect performance and communication features such as scalability. Therefore, SP1S series can be used with a small PLC that previously could not control the vast areas.

Second, characteristics:
1. Integrated & cost: CPU · power input and output into one; by using the display module and the function expansion board, you can very easily upgrade their systems.
2. Fuselage compact, high-speed operation: Basic instructions :0.55-0 .7 μs / instruction; Application instruction: 3.7-Number of 100μs / instructions.
3. Use at ease, large memory and memory specifications: Built-in EEPROM memory, step 2000; no batteries, no maintenance.
4. The rich resources of soft parts: auxiliary relays: 512 points, timer: 64 points, counter: 32 points; data register: 256 points.
5. Control :10-30 point scale (basic unit: 10/14/20/30 points).