Category Archives: Modicon Quantum

Enhance System Performance with Modicon Quantum I/O Modules

Substation I/O modules for direct 125 Vdc control
Quantum I/O modules are available for direct connection to critical 125 Vdc battery powered equipment such as circuit breakers, protective relays, transformers and capacitor banks.

  • Built-in high transient noise immunity ensures reliable operation in harsh 125 Vdc environ- ments.
  • The 125 Vdc 30A high current output module eliminates expensive high current interposing relays used in breaker tripping and closure.
  • The solid-state 125 Vdc low current output module ensures long life and trouble-free operation in higher frequency 125 Vdc switching environments without the use of expensive external snubbing circuitry.
  • Over-current/ short circuit diagnostics and protection on all solid state 125 Vdc outputs reduce downtime by ensuring quick identifi- cation of circuit prob- lems and fast repair.
Special Purpose Module Characteristics
Latch/Interrupt module for time critical applications
The Quantum Latch/ Interrupt module is a multi-purpose high speed input, latch,
and interrupt module combined, which is configurable through programming software. Interrupt handling instructions are part of the 984 Ladder Logic instruction set. Quantum throughput performance for 2 interrupts is typically 1ms.
High speed counters don’t miss a pulse
Quantum high speed counter modules have the ability to count pulses at speeds much faster than the Quantum controller can directly do by itself. These modules automatically report the current count to the Quantum controller every scan.
Simple ASCII exchanges
The Quantum ASCII module is a general purpose ASCII interface that provides the ability to communicate and ex- change data with devices including printers, bar code readers and scanners, weigh scales, and meters. This module is designed for relatively simple point to point ASCII communications, with ASCII messages stored inside the module triggered by logic within the Quantum controller.
Modicon 140AVI03000

Modicon Quantum 140AVI03000 – Product Spotlight

The 140AVI03000 is a Analog Mixed Current/Voltage Input Modules that is part of the Modicon Quantum series. This Analog In 8 Channel Bipolar Modules accepts a mix of current and voltage inputs. Jumpers are required between the input and sense terminals for current inputs. The 140-AVI-030-00 contains a total of 18 LEDs. The “Active” LED remains on and green when Bus communication is currently present. The “F” indicator will light up red when an error external to the module has been detected. The green LEDs 1 through 8 will turn on when the indicated point or channel is ON. The red 1 through 8 LEDs when light up for two reasons. Either the indicated channel is out of range (1 – 5 Volts), or a broken wire condition has been detected (4 – 20 mA).

To prevent improper fault indications, unused inputs should have the + (plus) and – (minus) inputs tied together and be configured for a bipolar input range. Unwired inputs can cause invalid readings. When configured for voltage inputs (no jumper is installed between Input (+) and ISENSE terminals), a broken field wire can cause readings to be non-zero and unpredictable. The field wiring terminal must not be removed when the module is in operation.

The following figure shows the 140-AVI-030-00 Wiring Diagram.

140-AVI-030-00 wiring diagram
140AVI03000 Wiring Diagram

For external wiring, the user should supply the current and voltage sources, and installation and calibration of the fuses are at the discretion of the user. It is recommended that shielded cables are used, and twisted shielded cables should be used in noisy environments. The shielded cables should be connected to the PLC’s ground. A shield bar should be used to connected the shielded cable to the ground. If you are field wiring the 140AVI03000, the maximum wire size is 1-14 AWG or 2-16 AWG and the minimum wire size is 20 AWG.

MRO Electric and Supply Company carries new and refurbished Modicon 140-AVI-030-00‘s. For more product information or to request a quote on a part, please call 800-691-8511 or email
Modicon 140AVI03000
Modicon 140AVI03000

Modicon Quantum 140CPU65150 – Product Spotlight

The 140CPU65150 is a Unity processor in Schneider Electric’s Modicon Quantum series. It is one of the newer models in the series of processor modules. It joins together the standard functions of the PLC and the diagnostic possibilities of a web server. It communicates using an RJ-45 connection. The module is in a double-width standard Quantum housing which requires two sequential slots in a Quantum rack. Because its web server functions are diagnostic only, software must be used to configure its services.

It has a clock frequency of 166 Mhz and has two local racks. It has 63 distributed I/O stations, 1 rack, and 3 distributed networks. It has 8000 discrete inputs and outputs of discrete in a distributed network, and 31744 discrete inputs and inputs in a remote system.  As far as application specific I/O, it can be used for time stamping, as a counter, for high-speed interrupt inputs, and as a serial link.

There are 6 optional modules that can be used with the 140CPU65150. These include, Ethernet, Modbus, Modbus Plus, Profibus DP, and Sy/Max. In a local AS interface, the module has an unlimited maximum number of connections. It also has 4 integrated connection types – Ethernet TCP/IP, Modbus, Modbus Plus, and USB. It has an expandable 8 MB of file storage, 7168 kB or expandable programming, and 768 kB of RAM. The 140CPU65150 uses a key switch memory port for on/off functionality.

The 140CPU65150 has a data rate of 10/100 Mbps. For a medium, a user should used a shielded twisted pair cable. The module has a number of services, including standard web service, Modbus TCP messaging, I/O scanning services, global data, FDR client, SNMP management, and SMTP services (email). It is compatible only with the Unity Pro software.

MRO Electric and Supply carries the 140CPU65150. For more product information or to request a replacement module, email or call 800-691-8511.


Modicon 140CRA31200 RIO Drop E/IP Adapter – Product Spotlight

The 140CRA31200 is a Ethernet RIO drop adapter in the Modicon Quantum series. It has 3 ports and uses the Ethernet IP/Modbus TCP communication port protocol. It can handle two integrated connection types: the Ethernet IP/Modbus TCP through the service port or through the device network. It is compatible with the 140CRP31200.

The 140CRA31200 has a number of local signalling channels. 1 green LED for RUN, 1 green/red LED for module status, 1 green/red LED for network communication status, and 1 red LED for I/O. This adapter module consumes one slot in the main (first) rack of the in Quantum remote drops. The extended (second) rack in a Quantum remote I/O drop does not require an adapter.

To set the location of the Ethernet remote I/O drop on the network, use the rotary switches on the front of the 140CRA31200 before you apply power to the module and before you download the application. The values that are set are applied during a power cycle. If the switch settings are change after the module has powered up, the Mod Status LED is activated and a mismatch message is logged in the module’s diagnostic system.

Because new values on the rotary switches are implemented on at the next power cycle, it is recommended that you set the values before starting the module. Valid values are from 00 to 159. These rotary switches can be manipulated on the 140CRA31200 with a small flat tipped screwdriver, and no software is required to configure or enable the rotary switches. Do not use the Stored and Clear IP settings on the Ones rotary switch, and keep in mind that the functionality of these settings do not apply to remote I/O installations.

MRO Electric and Supply carries new and refurbished Modicon 140CRA31200s. For more product information or to request  quote, email or call 800-691-8511.


Modicon 140CPS11420 – Product Spotlight

The Schneider Electric / Modicon 140CPS11420 is a Power Supply Module in the Quantum automation platform. It can use a summable or standalone power supply type. The module has an internal output overvoltage and overload protection. It comes in a standard module format and weights 0.65 kg. When in a standalone configuration, the 140CPS11420 uses a maximum current of 11 amps. In a summable configuration, the module has a maximum current of 20 amps. Its internal power dissipation is less than 12 watts at a full load.

A normally closed relay contact rated at 220 volts AC, 6 amp / 30 volts DC, 5A is available on terminals 1 and 2 of the power terminal strip. This contact set may be used to signal input power Off. The relay will de-energize when input power drops below 70 volts AC, when the input voltage is set to 115 volts AC, or 140 volts AC when the input is set to 230 volts AC. Its output to the Bus is 5.1 volts DC. No minimum current is required. The module’s input frequency can range from 47 – 63 Hz. the 140CPS11420’s input voltage total harmonic distortion is less than 10% of the fundamental root mean square value. The input power interruption is no less than 1 second when in a 1/2 cycle at full load, and at the minimum rated line voltage and frequency.

Remove the power line prior to insertion or removal of the module.Use only compatible combinations of summable and standalone power supplies in the Quantum back plane as stated above. If these precautions are not taken, serious injury and/or equipment damage could occur.

MRO Electric and Supply Company stocks new and refurbished 140CPS11420 modules.  For more information or to request a quote, call 800-691-8511 or email


140-DDI-353-00 (140DDI35300): Beyond the User Manual

The Modicon 140DDI35300 is part of the Quantum Automation platform. It is a low voltage DC discrete Input Module with 32 inputs.  It has 4 groups of channels with 8 inputs each and a positive logic input. The module requires a Bus current of 330 mA, and has an addressing requirement of 2 input words.  It accepts 24 Volt DC inputs and should be used with a shared input common wired to a positive potential and is for use with source output devices. It has no internal fuses, but external fuses can be used at the user’s discretion.
The 140-DDI-353-00 Module when On should be kept at a voltage of 5 to 30 Vdc and a minimum current of 2.0 mA. When Off, the voltage should read between -3 to 5 Vdc and kept at a max current of 0.5 mA. Its response time between the On and Off functions is 1 ms. The 140DDI35300 has no fault detection. Its power dissipation is 1.7 Watts plus an additional 0.36 Watts for every input that is in use. Its absolute maximum continous input should be kept under 30 Volts DC. Its maximum input at 1.3 ms should be a 56 Volt DC decaying pulse. 140DDI35300 uses a resistor limited input protection, and it has an internal resistance of 2.5k. External power is not necessary for this module. On its front panel, it has a total of 32 green LEDs that indicate the status for each point. This module is of standard size and can fit into any Modicon Quantum backplane easily.

Below is the Wiring Diagraph for the Modicon DDI35300:

140-DDI-535-00 Wiring Diagram
140-DDI-535-00 Wiring Diagram

MRO Electric and Supply stocks new and refurbished 140-DDI-353-00. For more information, please visit our 140DDI35300 Product Page, or call/email us at 800-691-8511 and

MRO Electric can also offer repair pricing and services for this module.

140CPU43412A Error Codes and Hot Standby

Our previous blog post on the 140CPU43412A describes the 140CPU43412A Configuration and Setup. 

140CPU43412A Hot Standby

You cannot create a Quantum Hot Standby configuration running one 140CPU53414A PLC with Unity firmware and one with NxT firmware. When using an NxT configuration in hot standby, both PLCs must have NxT firmware. When using a Unity Quantum hot standby configuration, only specific hot standby controllers can be used. The 140CPU43412A and 140CPU53414A PLCs are not supported in Unity Hot Standby configurations.

140CPU43412A Error Codes

The following are the error codes for the 140CPU43412A:

140CPU43412A Error Codes
140CPU43412A Error Codes
140CPU43412A Error Codes
140CPU43412A Error Codes
140CPU43412A Error Codes
140CPU43412A Error Codes

For ordering info or for a 140CPU43412A price quote you can call 1-800-691-8511 or email

140CPU43412A Firmware Part II

Phase 1 of firmware restoration is described in our previous blog post on the 140CPU43412A firmware.

140CPU43412A Firmware Part II

Restoring a 140CPU43412U (Unity) to 140CPU43412A (Concept):

Phase 2

During the download:

• Do not power OFF the PLC

• Do not power OFF the PC

• Do not disconnect the cable

• Do not shut down OS loader

Any loss of communication during the update procedure can cause severe damage to the CPU or NOE module. Failure to follow these instructions can result in injury or equipment damage.

Reset the PLC

Once the download of the intermediate binary file has completed, the PLC has to be initialized. This task can be performed by one of the two following actions:  Reset the PLC by pushing on the Restart button located on the CPU (for more information, refer to the PLC technical documentation).  Power OFF then ON the PLC. Once the PLC has restarted, go to Phase 3: download the final Concept OS.

Phase 3


The final binary file “q5rv135E.bin ” (140CPU34312 in our example) has to be downloaded. For that, follow the same procedure as the one described in the Phase 1.

Checking Version (optional)

If needed, you can check the new CPU version. For that  Open the OS loader tool.  Select the communication protocol.  Click on “Connect.” Then Click on “Properties.”

For ordering info or for a 140CPU43412A price quote you can call 1-800-691-8511 or email

140CPU43412A FIrmware

140CPU43412A Firmware Part I

Click now to view our blog on the 140CPU43412A Configuration and Setup. 

140CPU43412A Firmware

The q5rv144e.bin file supports both Concept (IEC & 984) and ProWORX PLCs.

In order to restore a 140CPU43412U (Unity) to a 140CPU43412A (Concept), three main phases are required.

Phase 1 – Restore the PLC to Concept with an intermediate OS. 

Phase 2 – Power OFF then ON the PLC. 

Phase 3 – Restore the Operating System with the appropriate file.

These phases are mandatory and cannot be by-passed.

Phase 1: 

Launching the OS Loader

The OS loader (provided with Unity) allows the user to download the Operating System to the PLC. To open it click on Start/Program/SchneiderElectric/Unity-PRO/OS loader.

Select the Communication Protocol

From the main screen of the OS loader, click on the “Next” button. To download the Operating System into the PLC, select the right communication protocol (in accordance with established physical link) and click on the “Next” button.

Select the Target Device

On the Device Type field, select Processor and the other needed parameters (Modbus address….). Then connect to the selected PLC (Node).

Select the Download Function 

From the screen described above press the “Next” button. A new screen is proposed: select “Download OS to device”.

Select the File to be Downloaded

Click on the “Browse…” button in order to select the file to download into the PLC. In this example we will restore the OS from 140CPU43412U to 140CPU43412A firmware. For that select the following folders: Quantum\Processor_modules\Unity_to_Concept. To restore the OS from Unity to Concept, two binary files can be selected:  Unity_to_Concept_43412A.bin (allows to “format” the processor to Concept)  q5rv135E.bin is the OS that will finally be downloaded in the processor. In our example we have to “format” the processor (remember, we still are in the Phase 1) then select and Validate “Unity_to_Concept_43412A.bin”. Once done click on the “Next” button.

Download the Intermediate OS

Once the previous screen is validated a warning is displayed: Click the “Okay” button. Two screens that give information regarding the file, the processor and the download are now displayed. Note: If the system detects a discrepancy on the hardware or on the OS version, the download will not be possible. This is indicated by a red cross and the “Next” button becomes unavailable. Solve this issue and continue. When the hardware – OS are compatible, click on the “Download” button to launch the download of the intermediate OS file.

Click Now for 140CPU43412A Firmware  Restoration Phases 2 & 3

For ordering info or for a 140CPU43412A price quote you can call 1-800-691-8511 or email

140CPU43412A Firmware

140ACI03000 Configuration and Setup

You can check out our previous blog post on the 140ACI03000 datasheet, wiring diagram,  and manual here for more information.

140ACI03000 Wiring Configuration Features:

The Modicon 140ACI03000 configuration processor easily plugs into the Quantum backplane. The fiber optic cable connects the two Hot Standby processors to provide a high speed communication path between the two controllers. No additional intermediate supervisor is required. This minimizes hardware and reduces panel space requirements. Simple installation makes the Quantum Hot Standby option processor an easy addition to any control system setup.

The new 140ACI03000 scaling configuration provides two methods for system configuration. The Quantum Hot Standby system also delivers the power of user configurable State RAM transfers from the primary to standby controllers. This new option provides all of the power of the function block solution and more. As few as 16 inputs, 16 outputs, one input register, and one output/holding register or as many as 64k, in the Quantum 486 controllers, can be configured for transfer in one or multiple scans. This option provides true separation of system configuration and control programming.

Users that are comfortable with the 984/800 series hot standby solution can opt for the single function block. This option provides all of the programming necessary to perform the hot standby function. By simply entering and energizing the function block in each controller, the default settings will affect a secure and reliable control system.

Should the user select to implement some optional hot standby functionality, all user options are triggered by inputs or register bits in the function block. Using Modsoft 2.3 DX Zoom capability all register bit functions are described in easy to understand terms that eliminate guess work.
Options include remote control of the standby system, remote status information, reverse and non-transfer of key register data and control of Modbus port addresses.


To order you can email or call 1-800-691-8511.

140ACI03000 Configuration
140ACI03000 Configuration