GE VersaMax Nano/Micro PLC

Product positioning and classification

VersaMax is a small PLC platform from GE General Electric, divided into two main series:

Nano 10

Integrated compact, non expandable

Low cost and easy installation (DIN rail/panel installation)

Suitable for small quantities, large quantities, and low-cost equipment

Micro series

Modular design, supporting up to 4 expansion modules

Stronger functions: high-speed counting PWM、 Motion control, dual serial ports, clock

Suitable for devices that require expansion, analog, networking, and motion

Comparison of Core Specifications

Model Built in I/O Maximum I/O Program Storage Scanning Speed Clock Communication Expansion

Nano 10 6 in 4 out 10 2K 1.3ms/K No RS232 No

Micro 14 8-in 6-out 126 9K 1.1ms/K without RS232 4 units

Micro 23 13 in 10 out 135 9K 1.1ms/K with RS232+485 4 units

Micro 28 16 in 12 out 140 9K 1.1ms/K with RS232+485 4 units

Micro 64 40 in 24 out 176 24K 1.1ms/K with dual ports and 4 Ethernet units

Instruction set and functions

Logical operations: AND/OR/NOT, Shift, Bit testing

Control instructions: subroutines PID、 Main control relay

Data processing: block transfer, table lookup, comparison

Mathematical operations: addition, subtraction, multiplication, division, trigonometric functions, square root

Sports functions: return to zero, jog, ramp, continuous trajectory (only available for Micro 20/40/64)

High speed counting: 4 channels, up to 100kHz (high-end model)

PWM output: 4 channels, up to 65kHz (high-end model)

Extended module system

Discrete expansion

Input: 8pm/16pm 24VDC

Output: 24VDC (source/drain), relay, 120VAC

Mixing: 8 in 6 out, 16 in 12 out, 40 in 24 out

Analog expansion

Signal: 0-10V, 0/4-20mA, ± 10V

Special: RTD PT100, thermocouple K/J/E/T/S/B/N

Specifications: 4-in, 4-in, 2-out, 12/16 bit resolution

Communication and Accessories

Ethernet module: 10/100M, Modbus TCP

USB/RS485 module: plug and play

PPDD: PC free program downloader (supports USB flash drive)

Data Panel: Text Human Computer Interface (2 × 16~4 × 20 characters)

Power Supply and Physics

Power supply: 12/24VDC, 120/240VAC

Power consumption: 3~10W

Temperature: 0~55 ℃

Installation: 35mm DIN rail or panel installation

Relay load: 2A/240VAC, some 10A

Software and Programming

Development environment: VersaPro, Machine Edition Logic Developer

Online functions: online modification, monitoring, and fault diagnosis

Program Download: Serial Port, Ethernet, PPDD USB Download

Protocol support: Modbus RTU/ASCII/TCP, SNP

Key issues

What is the core difference between Nano and Micro, and how to choose?

Answer: Nano is an all-in-one, non scalable, low-cost device suitable for simple devices with ≤ 10 points and no analog quantity; Micro is modular, scalable, and highly functional, supporting analog, communication expansion, motion control, and clock, suitable for devices with I/O>10, requiring expansion or networking.

What are the improvements of Micro 20/40/64 compared to low-end Micro?

Answer: The program storage has been increased to 24K words, and the data storage has been increased to 32K words; High speed counting at 100kHz/32 bits, PWM65kHz； Support motion control commands; The second port can choose Ethernet/USB; Support PC free storage module; I/O expansion capability is stronger.

How does VersaMax achieve on-site program updates without a computer?

Answer: Use the PPDD portable downloader (IC690ACC990), directly plug it into the RS485 port of the PLC, import/export programs through a USB flash drive, without the need for a computer or software, suitable for remote on-site and equipment maintenance batch upgrades.