Overview

Programmable logic controllers (PLC) are used to control industrial machinery such as AC servos, general-purpose inverters and sensors. They are widely used in factory automation systems for manufacturing and processing lines, machine tools, and industrial robots. To provide control capabilities tailored to each individual system, modular PLCs (CPU unit and various peripheral units) are used for large-scale and midsize systems, while block PLCs (CPU unit only) are used for small-scale systems.
Peripheral units of module type PLCs include a variety of products to match the specific requirements from end users. However, the proliferation of development resources has become an issue. To solve this problem, Renesas offers a peripheral unit platform based on the RX Family, which covers a broad performance range (32MHz to 240MHz) and a multitude of peripheral functions. This helps reduce the amount of development resources needed.
For block type PLCs, the RX64M product provides a one chip solution with large capacity RAM, Ethernet, USB, and SD Card I/F integrated, leading to both performance rise and BOM size reduction. In addition, our lineup also offers the RX65N/RX651, which is not only pin-compatible with the RX64M but also fully optimized. Therefore, we can provide an even larger selection of products for our customers to expand their own series of products. Furthermore, if the RX Family does not meet the performance requirements, the RZ/A and RZ/N series can be considered, both offer higher RAM capacity. By utilizing the extra large RAM, the memory access speed can be greatly improved, which in turn, leads to higher performance for the customer products.

System Block Diagram

Module PLC Block Diagram

Recommended Products

Microcontrollers and Microprocessors

Semiconductor Device Recommended Products Features, etc.
MCU for Peripheral Units or Control MCU/Control MPU RZ/A1L
  • Maximum operating frequency (MHz): 400MHz (Cortex®-A9)
  • On-chip memory (Max.): 3MB RAM
  • Using the internal RAM, memory access is significantly faster and more stable compared to that of using external RAM. Furthermore, in case a one chip solution is desired to handle both lag processes and network processes simultaneously, as well as provide support to multiple industrial network master protocols, our RX/N1D is the right product.
RZ/N1S
  • Maximum operating frequency (MHz): 500MHz (Cortex®-A7)/125MHz (Cortex®-M3)
  • On-chip memory (Max.): 6MB RAM
  • Using the internal RAM, memory access is significantly faster and more stable compared to that of using external RAM. Furthermore, in case a one chip solution is desired to handle both lag processes and network processes simultaneously, as well as provide support to multiple industrial network master protocols, our RX/N1D is the right product.
RZ/N1D
  • Maximum operating frequency (MHz): 500MHz (Cortex®-A7 Dual)/125MHz (Cortex®-M3)
  • On-chip memory (Max.): 2MB (+DDR-IF)
  • Using the internal RAM, memory access is significantly faster and more stable compared to that of using external RAM. Furthermore, in case a one chip solution is desired to handle both lag processes and network processes simultaneously, as well as provide support to multiple industrial network master protocols, our RX/N1D is the right product.
RX71M
  • Maximum operating frequency (MHz): 240MHz
  • On-chip memory (Max.): 4MB Flash, 552KB RAM, 64KB Data Flash
Peripheral unit microcontroller: Module type PLC
  • Creating an RX-based platform for many types of peripheral units helps reduce the development resources (time and cost) required. Control microcontroller: Block type PLC
  • In addition to communication functions such as Ethernet and USB, the large memory capacity helps reduce the number of external components required. Communication microcontroller
  • The TSIP-Lite function safely protects encryption keys, and the SDHI function enables fast data communication with the wireless communication module.
RX64M
  • Maximum operating frequency (MHz): 120MHz
  • On-chip memory (Max.): 4MB Flash, 552KB RAM, 64KB Data Flash
Peripheral unit microcontroller: Module type PLC
  • Creating an RX-based platform for many types of peripheral units helps reduce the development resources (time and cost) required. Control microcontroller: Block type PLC
  • In addition to communication functions such as Ethernet and USB, the large memory capacity helps reduce the number of external components required. Communication microcontroller
  • The TSIP-Lite function safely protects encryption keys, and the SDHI function enables fast data communication with the wireless communication module.
RX65N, RX651
  • Maximum operating frequency (MHz): 120MHz
  • On-chip memory (Max.): 1MB Flash, 640KB
Peripheral unit microcontroller: Module type PLC
  • Creating an RX-based platform for many types of peripheral units helps reduce the development resources (time and cost) required. Control microcontroller: Block type PLC
  • In addition to communication functions such as Ethernet and USB, the large memory capacity helps reduce the number of external components required. Communication microcontroller
  • The TSIP-Lite function safely protects encryption keys, and the SDHI function enables fast data communication with the wireless communication module.
RX63N, RX631
  • Maximum operating frequency (MHz): 100MHz
  • On-chip memory (Max.): 2MB Flash, 256KB RAM, 32KB Data Flash
Peripheral unit microcontroller: Module type PLC
  • Creating an RX-based platform for many types of peripheral units helps reduce the development resources (time and cost) required. Control microcontroller: Block type PLC
  • In addition to communication functions such as Ethernet and USB, the large memory capacity helps reduce the number of external components required. Communication microcontroller
  • The TSIP-Lite function safely protects encryption keys, and the SDHI function enables fast data communication with the wireless communication module.
Peripheral Unit MCU or Communication MCU RX231
  • Maximum operating frequency (MHz): 54MHz
  • On-chip memory (Max.): 512KB Flash, 64KB RAM, 8KB Data Flash
Peripheral unit microcontroller: Module type PLC
  • Creating an RX-based platform for many types of peripheral units helps reduce the development resources (time and cost) required. Control microcontroller: Block type PLC
  • In addition to communication functions such as Ethernet and USB, the large memory capacity helps reduce the number of external components required. Communication microcontroller
  • The TSIP-Lite function safely protects encryption keys, and the SDHI function enables fast data communication with the wireless communication module.
Peripheral Unit MCU RX111
  • Maximum operating frequency (MHz): 32MHz
  • On-chip memory (Max.): 512KB Flash, 64KB RAM, 8KB Data Flash
Peripheral unit microcontroller: Module type PLC
  • Creating an RX-based platform for many types of peripheral units helps reduce the development resources (time and cost) required. Control microcontroller: Block type PLC
  • In addition to communication functions such as Ethernet and USB, the large memory capacity helps reduce the number of external components required. Communication microcontroller
  • The TSIP-Lite function safely protects encryption keys, and the SDHI function enables fast data communication with the wireless communication module.

Memory

Semiconductor Device Recommended Products Features, etc.
SRAM RMLV0408E Series
RMLV0416E Series
  • Memory size: 4Mb
  • Access time (Max.): 45ns
  • Standby current (Typ.): 0.4μA
  • Renesas’ original memory cell technology is more than 500 times as resistant to software errors as full CMOS memory cells, providing the high reliability for the industrial market.
RMLV0808B Series
RMLV0816B Series
  • Memory size: 8Mb
  • Access time (Max.): 45ns
  • Standby current (Typ.): 0.4μA
  • Renesas’ original memory cell technology is more than 500 times as resistant to software errors as full CMOS memory cells, providing the high reliability for the industrial market.
RMLV1616A Series
  • Memory size: 16Mb
  • Access time (Max.): 55ns
  • Standby current (Typ.): 0.5μA
  • Renesas’ original memory cell technology is more than 500 times as resistant to software errors as full CMOS memory cells, providing the high reliability for the industrial market.
RMWV3216A Series
  • Memory size: 32Mb
  • Access time (Max.): 55ns
  • Standby current (Typ.): 1.0μA
  • Renesas’ original memory cell technology is more than 500 times as resistant to software errors as full CMOS memory cells, providing the high reliability for the industrial market.

Analog and Power Devices

Semiconductor Device Recommended Products Features, etc.
Power Supply
DC/DC
RAA23015x
  • Main specifications: Input voltage range: 7V to 28V, output voltage range: 0.8V to 6V, max. output current: 3A, auto PFM (light load, high efficiency) mode
  • Simplify power supply design and shorten TAT in kits with Renesas microcontrollers.
RAA23023x
  • Main specifications: Input voltage range: 4.5V to 16V, output voltage range: 0.8V to 6V, max. output current: 3A, auto PFM (light load, high efficiency) mode, dual ch DC/DC
  • Simplify power supply design and shorten TAT in kits with Renesas microcontrollers.
Isolation
High-speed Photocoupler General-purpose Coupler
PS9001
  • Main specifications: 10Mbps, compact, high voltage tolerance, compact SO5 package, common-lead package
  • Compact and high voltage tolerance, ideal for compact systems.
PS9123
PS9124