





The Mitsubishi PLC Module FX1S-20MR-D/FX1S-20MT-D is a cornerstone of the FX1S series, engineered for precise control in compact machinery. This module delivers 10 inputs and 10 outputs with a choice of relay or transistor output types, ensuring adaptability to diverse industrial loads. Its stored program cyclic operation and batch processing method, combined with an I/O refresh instruction, guarantee deterministic performance. With a program capacity of 2K steps and an instruction set including 29 basic and 85 applied instructions, this unit excels in applications requiring rapid logic execution and ladder-based sequencing.
| Parameter | Specification | Remarks |
|---|---|---|
| Operation control method | Cyclic operation by stored program | — |
| I/O control method | Batch processing method (when END instruction is executed) | I/O refresh instruction is available |
| Operation processing time | Basic instructions: 0.55 to 0.7 ms; Applied instructions: 1.65 to several 100 ms | — |
| Programming language | Relay symbolic language + step ladder | Step ladder can be used to produce an SFC style program |
| Program capacity | 2K steps | Provided by built in EEPROM memory |
| Number of instructions | Basic sequence instructions: 29; Step ladder instructions: 2; Applied instructions: 85 | A maximum 116 applied instructions are available including all variations |
| I/O configuration | Max total I/O set by Main Processing Unit | — |
| General (M) | 384 points | M0 to M383 |
| Latched (M) | 128 points (subset) | M384 to M511 |
| Special (M) | 256 points | From the range M8000 to M8255 |
| General (S) | 128 points | S0 to S127 |
| Initial (S) | 10 points (subset) | S0 to S9 |

What Does Our Clients Say
Mitsubishi MR-J4
Laura Navas
Great product!
2019/12/01
Keyence sensor
EQDR SALES
Original and fast!
2020/02/22