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Warranty Info

  • 140CPU43412A Warranty: 2 Years for new, remanufactured or repair
  • Inquire about exchanging your faulty 140CPU43412A for credit when ordering from MRO Electric

More Info on the 140CPU43412A

140CPU43412A Available Now - Call 800-691-8511. New, Reman, Exchange, or Repair. See Quantum 140-CPU-434-12A PDF below for product info.

Quantum | 140CPU43412A | Modicon | 140 CPU 434 12A | Processor 486K RAM 2MEG 2xMB, 1xMB

The Quantum 140CPU43412A CPU is a single-slot programmablecontroller with built-in executive memory, application memory andcommunication ports. All memory components are on board so noadditional chips or cartridges are necessary.Quantum CPUs use flash memory technology to support the CPU’sexecutive memory and instruction set. Flash is a state-of-the-art,nonvolatile memory technology that enables downloadable fieldupgrades as new features become available.The application program can be stored in either battery-backed RAMand/or Flash RAM. The battery is located on the front of the CPU andcan be serviced while the CPU is running. To protect the applicationprogram from inadvertent changes during operation, the140CPU43412A features a memory-protect switch. An LED goes onwhen this switch is activated.The 140CPU43412A CPU has two Modbus® ports and one ModbusPlus™ port. Simple rotary switches on the back of the CPU are used toset the network address of the Modbus Plus port. Each device on aModbus Plus network must have a unique address in the range 1 … 64.

140CPU43412A FAQs

After logging into Eclipse, try the following navigation;My downloads;Firmware;Select ''Modicon Quantum" from the pull down.;Sort by "Created" and "Descending" so that you see the most recent listed first.;Item 140CPUX341XA Flash Exec (English) contains the firmware files.
Yes. The q5rv144e.bin file supports both Concept (IEC & 984) and ProWORX PLCs.
Intermediate exec to upgrade CPU from Unity to Concept is attached.;use Unity_to_Concept_43212A.bin if the CPU module is up to PV15.;use Unity_to_Concept_43212PVGE16.bin if the CPU module is PV 16 or higher.;Use the Unity Loader to load the intermediate EXEC.;Use the Concept EXECLoader to load the Q5rv144E.bin.
The timer resets on a power cycle because the customer has made a Project Backup. When a Project backup is made, every power cycle;will cause a cold restart (%S0). This cold restart will reset all timers.
Forced objects reset on a power cycle because the customer has made a Project Backup.;When a Project backup is made, every power cycle will cause a cold restart (%S0). This cold restart;will reset all Forced objects.
The 140CPU43412U can be downgraded to a 140CPU43412A but, it is not recommended because a lot of customer's have run into issues with it.
If the Key Switch on the 140CPU43412A is either in the "Mem Prt" or "Stop" position, the memory is protected from a programming change. Put the Key Switch in the "Start" position.
Both the Concept (IEC & 984) and ProWORX PLCs are supported by the q5rv144e.bin file.


Manufacturer: Modicon Quantum
Series: Quantum CPUs
Weight: 2 lb
Range of product: Modicon Quantum automation platform
Product or component: Processor
Software name: Concept
ProWORX 32
Processor name: 80486
Mathematical coprocessor: With
Clock frequency: 66 MHz
Memory description: Internal RAM 896 kB
Exact time for 1 Kinstruction: 0.1...0.5 ms LL984
Watchdog timer: 250 ms
Clock drift: +/-8 s/day at 0...60 °C
I/O words: 64 I/64 O remote
64 I/64 O max local
30 I/32 O distributed
I/O words/network: 500 I/500 O distributed
Drops/Network: 63 distributed
Number of drops: 31 remote
Number of network: 3 distributed
2 remote
Battery type: Lithium 7 µA 210 µA
Battery capacity: 1.2 AH
Battery life: 10 yr
Number of port: 2 Modbus RS232
1 Modbus Plus
Communication module processor: 6 NOM, NOE, CR, NMS
Switch function: Key switch
Marking: CE
Bus current requirement: 1250 mA
Module format: Standard
Product weight: 0.85 kg
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