Need help?Do you have a question about the Mitsubishi MELSEC A1S38B and is the answer not in the manual?
General| Model | A1S38B |
|---|---|
| Category | Controller |
| Type | Base Unit |
| Slots | 8 |
| Operating Temperature | 0 to 55°C |
| Storage Temperature | -25 to 70°C |
| Series | MELSEC |
| Compatible Modules | MELSEC A Series modules |
| Humidity | 5 to 95% (non-condensing) |
The CPU module is the main part of the AIS PLC system, controlling I/O points and housing memory, real-time clock, and programming port.
Details specifications for AISCPU and AISCPU-S1 CPU modules, including control system, I/O control, instructions, and memory.
CPU base units are for mounting CPU, power supply, and I/O modules. The number of I/O modules depends on the unit selected.
CPU base unit with spare I/O slots for 2 I/O modules. Details external dimensions and reference number.
CPU base unit with spare I/O slots for 3 I/O modules. Details external dimensions and reference number.
CPU base unit with spare I/O slots for 5 I/O modules. Details external dimensions and reference number.
CPU base unit with spare I/O slots for 8 I/O modules. Details external dimensions and reference number.
Extension base units are for mounting extra power supply or I/O modules. Connection is made via an extension cable.
Extension base unit with spare I/O slots for 2 I/O modules. Details external dimensions and reference number.
Extension base unit with spare I/O slots for 5 I/O modules. Details external dimensions and reference number.
Extension base unit with spare I/O slots for 8 I/O modules. Details external dimensions and reference number.
Extension base unit with spare I/O slots for 5 I/O modules and a power supply module slot.
Extension base unit with spare I/O slots for 5 I/O modules and a power supply module slot. Details external dimensions.
Power supply modules provide the 5 VDC required by CPU and I/O modules. They output 5 VDC to a power rail on the base unit.
Power supply module with 110/230 VAC input and 5 VDC 5 A output. Details manual reference.
Power supply module with 110/230 VAC input, 5 VDC 3 A, and 24 VDC 0.6 A output. Details manual reference.
Power supply module with 24 VDC input and 5 VDC 5 A output. Details manual reference.
Input modules interface external input devices with the PLC, with various types based on voltage and input points.
Output modules interface the PLC with external output devices like contactors, displays, and lamps, varying by voltage and output points.
Intelligent I/O modules providing dedicated control for applications like position, linking, networking, interpreting/converting information between PLC and devices.
Remote terminal block units connect to I/O modules via terminal block cables, with various types and compatible I/O modules.
Flowchart guiding the selection of appropriate input modules based on voltage, points, type, and speed requirements.
Flowchart for selecting output modules based on type, points, current rating, and output type (transistor, relay, triac).
Flowchart for selecting special function modules based on application needs like A/D conversion, computer linking, or high-speed counting.
Flowchart for selecting the correct power supply module based on DC 24V input voltage and output requirements.
Flowchart for selecting the base unit based on the number of I/O slots required and DC 5V current consumption.
Details how to configure the system by allocating modules to I/O slots and assigning input/output numbers.
Instructions for mounting CPU and extension base units, emphasizing 30 mm clearance for ventilation and module access.
Explains how to fix CPU and extension base units to DIN rails using fixing hooks, including applicable DIN rails and screw spacing.
Explains how to install and remove AIS modules onto and from the base unit, ensuring power is OFF.
Provides wiring instructions for power supply modules, including use of constant voltage and insulating transformers for voltage fluctuations and noise.
Wiring instructions for equipment connected to input/output modules, covering terminal block connector size, line separation, and shielded cables.
Guidelines for proper PLC grounding, recommending independent Class 3 grounding or joint grounding methods, and troubleshooting grounding issues.
Describes internal devices of the AISCPU used in sequence programs, such as data registers, internal relays, timers, and counters.
Describes programming in relay symbol language (ladder logic) and logic symbolic language (instruction list), and how programs are converted to machine language.
Introduces the total of 260 instructions classified into sequence, basic, and application instructions, with brief descriptions.
Lists application instructions, classified into logical product, logical sum, and exclusive logical sum, with details on symbol and processing.
Continues listing application instructions, covering status latch, sampling trace, carry, and timing clock instructions.
Describes sequence instructions, focusing on contact instructions like LD, LDI, AND, ANI for operation start and series connection.
Provides an example ladder logic program and its equivalent sequence instruction list using LD, OR, AND, ANI, OUT, END instructions.
Describes SET (turn ON device, remains ON) and RST (turn OFF device, reset value) instructions for bit devices.
Provides an example ladder logic program and its sequence instruction list demonstrating the use of SET and RST instructions.
Describes PLS (pulse ON for one scan on rising edge) and PLF (pulse ON for one scan on falling edge) instructions.
Provides an example ladder logic program and its sequence instruction list demonstrating the use of PLS and PLF instructions.
Describes MC (master control start) and MCR (master control reset) instructions for efficient circuit switching and program control.
Provides an example program using MC instructions with nesting, demonstrating sequential restriction of execution conditions.
Explains comparison instructions for numerical magnitude comparisons (=, >, <, etc.) between data, handled as contacts.
Provides the sequence instruction list for an example program demonstrating comparison instructions with timer outputs.
Describes arithmetic operation instructions for BIN and BCD data addition, subtraction, multiplication, and division. Lists 56 types.
Provides an example program demonstrating BIN arithmetic instructions (+P, -P, *P, /P) with step-by-step operations.
Explains BCD/BIN conversion instructions, categorizing them into BCD to BIN and BIN to BCD conversion types.
Shows examples of BCD/BIN conversion instructions, illustrating PLC output module and digital switch displays.
Describes data transfer instructions for moving, interchanging, and negatively transferring data between devices. Lists 16 types.
Provides an example program demonstrating data transfer instructions (MOV, FMOV, BMOV, CMLP) and their effects on binary and register data.
To Next Page