Control Solutions’ AddMe Lite Model AMJR-14-SM Programmable I/O for Modbus RTU has 14 I/O points, and operates as a master or slave for I/O expansion, or as a controller with soft PLC capability. The AMJR-14-SM features 12 analog/universal inputs with configurable type and scaling. You can individually configure each universal input for 10-bit fast analog or discrete input. Floating point holding registers provide data from the analog I/O points. In addition, analog (universal) inputs are mirrored to integer registers and may be treated as on/off values.

Two of the analog/universal inputs can be configured as pulse counting inputs. These inputs measure frequency, or totalize pulse input at up to 5 kHz. The totalizing input has non-volatile count storage. The count is stored to non-volatile memory every 15 minutes, providing a 28-year life. The AddMe Lite also includes 2 discrete outputs.

Feature Highlights
• 12 Analog/Universal Inputs, 10-bit, Configurable as 0-10VDC, Thermistor, Dry Contact
• Pulse Count on 2 Analog/Universal Inputs
• 2 Discrete Outputs, Open Drain FET, 1A @ 30VDC
• Modbus RTU 9600 to 38,400 Baud

AMJR-14-SM Programmable I/O for Modbus RTU

AddMe® Lite AMJR-14-SM Network I/O for Modbus RTU

Order code: AMJR-14-SM
Retail price: $449.00

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Control Solutions’ AddMe Lite features 12 inputs which accept analog input from thermistors or 0-10V sensors, or discrete input from dry contact switches. AddMe Lite also provides 2 discrete outputs which can sink 1A at 24VDC.

Floating point holding registers provide data from the analog I/O points. In addition, analog (universal) inputs are mirrored to integer registers and may be treated as on/off values. Linearization tables are provided for 10K and 20K type II, III, and IV thermistors. Input type and scaling is configured by writing to additional holding registers.

Screen shot from AMJR-SM Programmable I/O for Modbus RTU configuration tool

The AddMe Lite Configuration Tool is a user friendly configuration tool that provides simple templates for reading and writing the Modbus registers that configure the device. Connect the AddMe Lite to your laptop via any RS-485 adapter on your PC's COM port. .

i.CanDrawIt® is available at no additional cost for use with AddMe Lite controllers from Control Solutions. i.CanDrawIt® works just like an electrical schematic CAD program, except you draw control programs that look like circuits. The resulting software will function like the circuit you draw. i.CanDrawIt® includes visual program simulation as well as visual live debugging where supported by the target device. Set breakpoints or step through the program one visual function block at a time. Update variables and I/O objects in simulation or live.


AMJR-14-SM Features

• 12 Analog/universal inputs
    • 0-10VDC, Thermistor, dry contact
    • Software selectable input type
    • 10-bit resolution
    • 2 channels capable of pulse count input
• 2 Discrete outputs
    • Open drain FET, 1A @ 24V current sink
• Modbus RTU RS-485 Slave
• Powered by 10-30VDC or 24VAC 50/60 Hz
• Power Consumption:
    • 0.15A @ 24VDC max.
• DIN rail mounting, 100mm H x 70mm W x 60mm D
• Pluggable screw terminal blocks
• -30C to +70C, 5%-95% RH non-condensing
• Certifications: FCC, CE


• AMJR-14-SM Support Package
Contains configuration tool software, USB driver, documentation. (AM3-SM package covers both)

• Download Copy of AMJR-14-SM Online Help

• Modbus Tutorial
Introduction to Modbus, including function codes, exception codes, register numbering.

Our most extensive technical support is provided by the same engineering staff that developed the products. Your personal attention from this staff is available via the support ticket system.

No user/password is required to open a new ticket. Once you open a ticket, you will immediately receive an email with your ticket number. Your ticket number becomes your login to review your ticket(s) later. Click the Support Ticket icon anywhere you see it. (If you do not get an email with your ticket number, within minutes, check your junk folder, spam settings, etc, and try again if necessary.)

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