What programming languages are supported?
Ladder diagram, relay symbol language, and Sequential Function Chart (SFC)
1 actual photo shown first. Reference images are model-matched and must be confirmed before purchase.
Mitsubishi
A2USHCPU-S1
A2USHCPU-S1 PLC CPU Unit, MELSEC-A series
Mitsubishi
From $1,526.02In stockDiscontinued
Product Description
The A2USHCPU-S1 is a high-performance CPU unit for Mitsubishi’s MELSEC-A series PLC platforms, designed for backplane/rack mounting in industrial automation systems. It supports ladder diagram, relay symbol language, and SFC programming, offering robust arithmetic and data handling including floating-point operations, fixed-point BCD, trigonometric and logarithmic functions, text processing, and advanced diagnostics. Program capacity is 30K steps with 256 KB RAM and extensive device registers, counters, and relays to accommodate complex control strategies. I/O connectivity scales to 8192 device points with 1024 local I/O points, suitable for large installations. Sequence instruction processing time is 0.09 microseconds per step, enabling fast deterministic control. Operational temperature ranges from 0 to 55 °C with storage from −20 to 75 °C, supporting harsh environments. Features include constant scan, power-failure latch, remote run/stop/pause, sampling trace, step operation, interrupts, watchdog timer, and SFC-dedicated microcomputer area. This unit is commercialized and is equivalent to model A2USHCPUS1.
Key Features
- •30K step program capacity for complex logic, 256 KB RAM with extensive device registers, 0.09 µs per LD instruction processing speed, Supports LD, relay symbols, and SFC, Up to 8192 device I/O points, 1024 local I/O points, Backplane or rack mounting, Robust diagnostics and watchdog timer
Buy Options
Condition, indicative price, stock, and lead time. Confirm current availability via RFQ.
ConditionPriceAvailabilityLead time
New
Price: $1,952.59
Availability: 5 in stock
Lead time: ~2 day lead
Never Used
Price: $1,695.58
Availability: 1 in stock
Lead time: ~2 day lead
Used
Price: $1,526.02
Availability: 149 in stock
Lead time: ~2 day lead
FNFP
Price: RFQ
Availability: 17 in stock
Lead time: Quoted after RFQ
Specifications
- Manufacturer Part Number
- A2USHCPU-S1
- Series
- MELSEC-A (AnS sub-range)
- Main Function
- PLC CPU unit
- Programming Languages
- Ladder diagram, Relay symbol language, SFC
- Program Capacity
- 30K steps
- RAM
- 256 KB
- I/O Device Point Capacity
- 8192 points
- I/O Point Capacity
- 1024 points
- Processing Time (LD)
- 0.09 µs per step (90 ns)
- Mounting
- Backplane / rack
- Operating Temperature
- 0 to +55 °C (+32 to +131 °F)
- Storage Temperature
- -20 to +75 °C (-4 to +167 °F)
- Equivalent Model
- A2USHCPUS1
- Manufacturer Product Status
- Commercialized
- Part #
- A2USHCPU-S1
- Category
- PLCs/Machine Control
- Subcategory
- PLC Module/Rack
- Weight
- 1.06 lbs
Before we quote this part
Actual photos when available
Nameplate, condition, and visible wear can be shared before quote when stock photos are not enough.
Test notes for used units
Power-on or function test status is stated when available, with clear condition grading.
Trackable global shipping
DHL, FedEx, UPS, or forwarder options can be quoted with packing photos and tracking details.
Clear DOA boundary
For tested units, quote terms can include 7-day DOA support unless otherwise stated.
Independent sourcing disclaimer
We are not an authorized distributor, reseller, or representative of Siemens, Mitsubishi, Omron, or other manufacturers listed on this site. All product names, trademarks, brands, and logos are the property of their respective owners. Products may be used, refurbished, surplus, or sourced from the secondary market unless otherwise stated.
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FAQ
What is the program capacity?
Up to 30K steps with 256 KB RAM
How fast does it execute sequence instructions?
0.09 microseconds per LD instruction
What are the I/O capacities?
8192 device I/O points and 1024 local I/O points
How is the unit mounted?
Backplane or rack mounting