H2-DM1, H2-DM1E Updated: 02/21/2022
Specification Do-more Designer Documentation Firmware FAQs



The Do-more H2 series micro-modular CPUs are "superchargers" for the time-tested DL205 hardware. We started with a blank slate and included many features our customers have been asking for. It's superfast, has lots of memory, embedded Ethernet - we know, we're pretty excited ourselves!

Both CPUs Offer:

Over 1Mb total memory.

Program/monitor/debug over any embedded communication port.

Project documentation is stored in the PLC.Support for up to 256 I/O locally and thousands more with optional Ethernet remote expansion racks.

Supports inexpensive serial port expansion options for connection to bar code readers, ASCII devices, printers, etc.

Four base sizes with built-in power supply support 12/24 VDC, 110/220 VAC and 125VDC (six and nine-slot only) power sources.

Over 50 option modules are available, from discrete and analog to high-speed counter and Ethernet modules.


NOTE: Do-more CPUs can only be programmed with the new Do-more Designer software. DirectSOFT, and ladder programs developed with DirectSOFT, are not compatible with these new CPUs.

2000 PID Loops with Auto-tuning

The Do-more H2 CPUs can process up to 2000 PID loops directly in the CPU. You can select from various control modes including automatic, manual, and cascade control. There are also a wide variety of alarms including Process Variable, Rate of Change, and Deviation. The loop operation parameters (Process Variable, Setpoint, Setpoint Limits, etc.) are easily accessed from operator interfaces or Human Machine Interfaces (HMIs).

Setup is accomplished with easy-to-use setup menus and monitoring views in the Do-more Designer PLC programming software. The auto tuning feature is easy to use and can reduce setup and maintenance time. The CPU uses the auto tuning feature to automatically determine near optimum loop settings.

Optimized Instruction Set

The Do-More instruction set was developed by listening to our customers' needs and requests, with flexibility and ease of use as our goals. Download the free Do-more Designer programming software today and take a look at these powerful and easy-to-use instructions.

True Bumpless Run-time Editing

Do-more Designer can download a new version of your code into the Do-more CPU and seamlessly switch to it at the beginning of the very next scan. There is no need for any pause (however brief) that can wreak havoc on the operation of your machine or process.

  H2-DM1 H2-DM1E
Interface Ports 1 USB (USB-B)
1 Serial (RJ-12, RS232C)
1 Serial (RJ-12, RS232C)
1 Ethernet (RJ-45, 10/100Base-T)
Operating Temperature 0 60 C (32 140 F)
5% to 95% humidity (non-condensing)

no corrosive gases, pollution level=2

Vibration: MIL STD 810C 514.2
Shock: MIL STD 810C 516.2
Storage Temperature -20 C 70 C  (-4 F 158 F)
Power Consumption 250mA @ 5vdc 275mA @ 5vdc
MTBF (hours)
32200 29500
Manufacturer Host Automation Products, LLC
The H2 series Do-more PLC Hardware User manual covers the Do-more CPUs, bases, discrete I/O, analog I/O and intelligent modules. This manual is available for Free Download online or order hard copy at Automationdirect.com.



We have also made the PowerPoint slides that we use in our technical support training class available for those who want to see them. Follow this link to the slideshow.

You will need a PowerPoint Viewer to run the slideshow, you can download a free one from Microsoft here.


Acquiring and applying firmware updates for any of the Do-more PLCs is managed through Do-more Designer.

Last Update   : 20 February 2024

GA Version    : v3.0.8
File Size     : 873Kb

OS Version    : v2.9.9
File Size     : 1.019Mb

View the H2-DM1/E Revision History