IDEC MicroSmart FC6A PLC CPU Module

Product positioning and core features

FC6A is a high-performance integrated PLC launched by IDEC, aimed at equipment automation and vehicle electronic control, with:

Built in Ethernet, supports Modbus TCP, web server, and data logging

Built in SD card for program backup and data storage

Serial port switchable: RS232C/RS485

The J model supports SAE J1939 vehicle communication protocol

Strong anti-interference, wide temperature operation, battery backup data

List of Basic Models 

Model Series Basic I/O Power Supply Output Type Maximum Digital I/O Maximum Analog I/O

FC6A-C16 9-in 7-out AC/DC relay/transistor 400 100

FC6A-C24 14 in 10 out AC/DC relay/transistor 504 124

FC6A-C40 24 in 16 out AC/DC/12V relay/transistor 520 126

FC6A-C40J 24 in 16 out AC/DC/12V relay/transistor 250 126

Electrical and Environmental Parameters

power supply range

AC：85~264V AC

24V DC：20.4~28.8V DC

12V DC：10.2~18.0V DC

Power consumption: AC approximately 33-41VA; DC approximately 3.12-5.0W

Voltage resistant insulation: 1500V AC/1min; Insulation resistance ≥ 100M Ω

Working temperature: -10~+55 ℃

Storage temperature: -25~+70 ℃

Protection: IP20

Control and I/O performance

Program and Processing

Program capacity: 72KB~640KB

Basic instruction processing: 42 μ s/1000 steps

Data register: 54000 points

Timer: 1024 points; Counter: 512 points

Battery backup: BR2032, with a lifespan of approximately 4 years

High speed function

High speed counter: 6-point, up to 100kHz, 32-bit

Pulse output: 4 points, up to 100kHz

Interrupt/Capture Input: Response fastest 5 μ s

Output specifications

Relay: 2A/point, mechanical life of 20 million times

Transistor: 0.5A/point, response 5-30 μ s

Overview of Communication Interfaces

Interface specification function

Ethernet 10/100M, RJ45 Modbus TCP, Web, PC debugging

Serial RS232 C/RS485 switchable Modbus RTU, user communication

USB mini-B 2.0 PC programming and debugging

CAN (J model) SAE J1939 vehicle/engine communication

SAE J1939 (J model exclusive)

Supporting standards: J1939-11/-15/-21/-71/-73/-75/-81

Maximum sending: 100 messages; Maximum reception: 200 pieces

Management nodes: up to 128

Transmission cycle: 10~65535ms

Key issues

What are the core differences and applicable scenarios between FC6A standard model and J1939 model?

Answer: The standard model is designed for general industrial automation, with a maximum digital I/O of 520 points; The J model is equipped with SAE J1939 onboard protocol, specifically designed for commercial vehicles, engines, and construction machinery. The maximum digital I/O is reduced to 250 points, while the rest of the analog signals and performance are basically the same.

What is the high-speed I/O performance of FC6A and what positioning control requirements can it meet?

Answer: It has 6 high-speed counters (up to 100kHz) and 4 pulse outputs (up to 100kHz), supports encoders and simple positioning control, and can achieve mid to low end motion control requirements such as speed detection, position closed-loop, fixed length cutting, and point motion.

What are the highlights of FC6A in communication and data management, and how to achieve remote monitoring?

Answer: Highlights include built-in Ethernet+web server, SD card data recording, and dual protocol Modbus TCP/RTU. Remote monitoring can be connected to a local area network via Ethernet, accessed through a computer/mobile phone to access the PLC’s built-in webpage, or connected to SCADA/HMI via Modbus TCP for real-time monitoring.