Designed to ensure high-availability control in critical automation environments, the Mitsubishi Electric Q12PRHCPU operates as a high-performance redundant CPU module within the MELSEC Q Series platform. This module is engineered to prevent system downtime by utilizing a dual-redundant architecture where a backup CPU instantly assumes control in the event of a primary CPU failure. It features a program capacity of 120k steps and supports up to 4096 physical I/O points, making it suitable for large-scale, fault-tolerant industrial operations.
| Parameter | Specification Value |
|---|---|
| Manufacturer | Mitsubishi Electric |
| Model Number | Q12PRHCPU |
| Series | MELSEC Q Series |
| Module Type | Redundant PLC CPU Module |
| Program Capacity | 120k steps (480 KB) |
| I/O Points (Physical) | 4096 points |
| I/O Points (Device) | 8192 points |
| LD Instruction Speed | 0.034 microseconds (34 ns) |
| Current Consumption (5 VDC) | 0.89 A |
| Operating Temperature | 0 to 55 degC |
| Storage Temperature | -25 to 75 degC |
| Relative Humidity | 5 to 95% RH (non-condensing) |
| Net Weight | 0.30 kg |
| Shipping Weight (Calculated) | 2.00 kg |
| Dimensions (W x H x D) | 27.4 mm x 98 mm x 115 mm |
| Country of Origin | Japan |
| Interface Port | Connector Type | Functional Assignment |
|---|---|---|
| RS-232 Port | Mini-DIN 6-Pin | Serial programming, peripheral connection, and system diagnostics. |
| USB Port | Mini-B | High-speed programming, monitoring, and parameter configuration via GX Works2. |
| Tracking Port | Dedicated Redundant Connector | High-speed tracking cable connection to synchronize memory with the standby CPU. |
The Q12PRHCPU must be used in conjunction with redundant base units (such as the Q38RB or Q68RB) and redundant power supply modules (Q61P-D). It cannot be mixed with standard Q-series CPUs on a standard base unit for redundant operations. When replacing older Q12HCPU modules, note that standard non-redundant base units are incompatible with the physical tracking interface and dual-bus routing of the redundant series.
Tracking cable length is a critical constraint. Standard tracking cables (QC10TR or QC30TR) are limited to 3 meters. Exceeding this distance or using non-shielded custom cables can introduce electromagnetic interference, leading to tracking synchronization failures (such as "SP.UNIT LAY. ERR" or "CONTROL CPU ERROR"). Additionally, optimize the tracking data size settings in GX Works2 to prevent excessive scan time extensions during synchronization cycles.
Before powering up the redundant system, verify that both the primary (System A) and standby (System B) CPU modules have identical firmware versions. Discrepancies in firmware can prevent the standby CPU from entering the "BACKUP" state, leaving the system in a non-redundant, single-CPU run mode. Always download identical parameter files and program blocks to both units before executing the initial system synchronization.
CRITICAL WARNING:
Ensure all external power sources feeding the base unit and associated I/O racks are completely de-energized before mounting or removing the CPU modules. Failure to isolate power can result in electrical arcing, damage to the internal backplane bus, or unexpected control system state changes.
Global Express Shipping
Returns & Warranty
Manufacturer: Mitsubishi Electric
Product No.: Q12PRHCPU
Country of origin:United States
Product Type: Redundant PLC CPU Modules
Payment: T/T, Western Union
Weight: 500g
Dimensions: 27.4 mm x 98 mm x 115 mm
Shipping port: Xiamen
Warranty: 12 months
Designed to ensure high-availability control in critical automation environments, the Mitsubishi Electric Q12PRHCPU operates as a high-performance redundant CPU module within the MELSEC Q Series platform. This module is engineered to prevent system downtime by utilizing a dual-redundant architecture where a backup CPU instantly assumes control in the event of a primary CPU failure. It features a program capacity of 120k steps and supports up to 4096 physical I/O points, making it suitable for large-scale, fault-tolerant industrial operations.
| Parameter | Specification Value |
|---|---|
| Manufacturer | Mitsubishi Electric |
| Model Number | Q12PRHCPU |
| Series | MELSEC Q Series |
| Module Type | Redundant PLC CPU Module |
| Program Capacity | 120k steps (480 KB) |
| I/O Points (Physical) | 4096 points |
| I/O Points (Device) | 8192 points |
| LD Instruction Speed | 0.034 microseconds (34 ns) |
| Current Consumption (5 VDC) | 0.89 A |
| Operating Temperature | 0 to 55 degC |
| Storage Temperature | -25 to 75 degC |
| Relative Humidity | 5 to 95% RH (non-condensing) |
| Net Weight | 0.30 kg |
| Shipping Weight (Calculated) | 2.00 kg |
| Dimensions (W x H x D) | 27.4 mm x 98 mm x 115 mm |
| Country of Origin | Japan |
| Interface Port | Connector Type | Functional Assignment |
|---|---|---|
| RS-232 Port | Mini-DIN 6-Pin | Serial programming, peripheral connection, and system diagnostics. |
| USB Port | Mini-B | High-speed programming, monitoring, and parameter configuration via GX Works2. |
| Tracking Port | Dedicated Redundant Connector | High-speed tracking cable connection to synchronize memory with the standby CPU. |
The Q12PRHCPU must be used in conjunction with redundant base units (such as the Q38RB or Q68RB) and redundant power supply modules (Q61P-D). It cannot be mixed with standard Q-series CPUs on a standard base unit for redundant operations. When replacing older Q12HCPU modules, note that standard non-redundant base units are incompatible with the physical tracking interface and dual-bus routing of the redundant series.
Tracking cable length is a critical constraint. Standard tracking cables (QC10TR or QC30TR) are limited to 3 meters. Exceeding this distance or using non-shielded custom cables can introduce electromagnetic interference, leading to tracking synchronization failures (such as "SP.UNIT LAY. ERR" or "CONTROL CPU ERROR"). Additionally, optimize the tracking data size settings in GX Works2 to prevent excessive scan time extensions during synchronization cycles.
Before powering up the redundant system, verify that both the primary (System A) and standby (System B) CPU modules have identical firmware versions. Discrepancies in firmware can prevent the standby CPU from entering the "BACKUP" state, leaving the system in a non-redundant, single-CPU run mode. Always download identical parameter files and program blocks to both units before executing the initial system synchronization.
CRITICAL WARNING:
Ensure all external power sources feeding the base unit and associated I/O racks are completely de-energized before mounting or removing the CPU modules. Failure to isolate power can result in electrical arcing, damage to the internal backplane bus, or unexpected control system state changes.
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
United States
|
A practical engineering guide to PLC CPU operation, from deterministic scan cycles and I/O image tables to memory, communications, diagnostics, redundancy, processor sizing, and reliable system...
Sostituire un 1756-L73 non significa automaticamente aggiornare il firmware. Questa guida confronta le versioni 19.013, 21.011 e 31.011, concentrandosi sulla compatibilità dei progetti, sulle...
Implementa un circuito luminoso XOR con 3 interruttori SPST in LogixPro o RSLogix 500 utilizzando un bit di relè interno. Include tabelle della verità, equazioni booleane e verifica.
Integra Allen-Bradley CompactLogix, Caterpillar ATS e generatori nel DCS DeltaV tramite Modbus RTU. Include i gateway ProSoft MVI69-MCM e Miille DIN266.
L’istruzione ONS si attiva, ma la bobina OTE non rimane mai eccitata in Studio 5000 perché il one-shot è vero solo per una scansione. Usa OTL/OTU oppure una logica di autoritenuta.
Configura i servoazionamenti Allen-Bradley Kinetix 5500 su EtherNet/IP. Include CIP Sync, la temporizzazione IEEE 1588 V2, la selezione degli switch Stratix, la topologia DLR e l’HMI.
