# AutomationDirect BX-DM1-10ED2-D

Hardware · `BX-DM1-10ED2-D` · verification: source checked

The BX-DM1-10ED2-D is a stackable micro brick programmable logic controller in the AutomationDirect BRX Do-more line. It executes ladder logic written in Do-more Designer v2.0 or later and provides 6 discrete inputs and 4 sourcing discrete outputs, powered from an external 12-24 VDC supply. One RS-232/RS-485 terminal port carries Modbus RTU master/slave, ASCII, K-sequence slave and programming/monitoring traffic, and up to 8 expansion modules can be added.

## Specification

| Property | Value |
|---|---|
| Category | plc |
| Program memory | 64000 words |
| Data memory | 128000 words |
| Discrete inputs | 6 |
| Discrete outputs | 4 |
| Serial ports | 1 |
| Motion axes | 4 |
| Supply voltage | 12-24 VDC |
| Switching frequency | 250000 Hz |

## Connected

- Manufacturer: [AutomationDirect](https://machineschema.com/manufacturer/automationdirect.md)
- Protocols: [MODBUS RTU](https://machineschema.com/protocol/modbus-rtu.md)

## Safety

- UL Listed, file # E185989; no UL Recognized listing and no UL Hazardous listing are stated.
- CE declaration and EU REACH document are available; RoHS status is stated as compliant.
- No CSA file number is stated.
- Ships with a lithium button battery installed: UN3091, packaging instruction 970, lithium content 0.07; replacement battery D0-MC-BAT (generic CR2032).

## Study notes

- Total memory is 192k words: 64k words ladder memory plus 128k words user data memory.
- Includes a MicroSD card slot, real-time clock/calendar, retentive memory and battery backup.
- Maximum of 8 expansion modules allowed.
- Discrete inputs: 6 points, 12-24 VAC/VDC, sinking/sourcing, arranged in 2 isolated commons of 3 points.
- Discrete outputs: 4 points, 12-24 VDC sourcing, 0.5 A per point, in 2 isolated commons of 2 points.
- All 6 discrete inputs are high-speed capable; 2 discrete outputs are high-speed capable.
- High-speed counters: up to 3 up, 3 down, 3 up/down, 3 pulse/direction, 3 quadrature (A and B) or 3 quadrature with Z.
- Pulse output modes: up to 4 virtual axes, 2 PTO linear step/direction, 1 PTO CW/CCW, 1 PTO quadrature (A and B) and 2 PWM outputs.
- Supports more than 100 PID loops, configurable to the memory limit.
- Serial port speed up to 115.2k baud; port protocols include Do-more protocol, Modbus RTU master/slave, ASCII in/out, K-sequence slave and a non-secure HTTP webserver.
- Ships with BX-RTB03S terminal block and D0-MC-BAT battery; requires BX-RTB10, BX-RTB10-1 or BX-RTB10-2 terminal block kit or ZIPLink pre-wired cables.
- Programming software: Do-more Designer v2.0 or later; programming language is ladder.

## Sources

1. [BRX Do-more PLC: 6-pt in, 4-pt out, serial port, (programmable logic controller) (PN# BX-DM1-10ED2-D) | AutomationDirect](https://www.automationdirect.com/adc/shopping/catalog/programmable_controllers/brx_plcs_(stackable_micro_brick)/plcs_-a-_cpus/bx-dm1-10ed2-d) (accessed 2026-10-26)
2. [BX DM1 10ED2 D cutsheet](https://cdn.automationdirect.com/static/specs/cutsheet/BX-DM1-10ED2-D_cutsheet.pdf) (accessed 2026-10-26)

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