ABB 086318-002 SRAM Memory Expansion Daughter Board

ABB 086318-002  Technical Specification
Basic Product Information
Brand: ABB
Model: 086318-002
Order Part Number: 086318-002
Product Name: SRAM Memory Expansion Daughter Board for ABB AC500 PLC Controller
Country of Origin: Sweden
HS Customs Code: 8542319000 (Industrial PLC memory expansion circuit board)
Mechanical Dimensions & Weight
Overall Dimension (H × W × D): 208 mm × 120 mm × 15 mm
Net Weight: 0.13 kg
Gross Weight with Anti-static Bag: 0.16 kg
Installation: Internal plug-in on AC500 CPU mainboard
Protection Class: IP20 indoor cabinet only

Electrical Input Parameters
Backplane Power Input
Supply Voltage: 5 VDC from CPU internal bus
Typical Power Consumption: 1.2 W
Built-in reverse polarity and overvoltage protection
Environmental Range
Operating Temperature: -20°C ~ +60°C
Storage Temperature: -40°C ~ +85°C
Relative Humidity: 5%–95% RH non-condensing
Electrical Output Parameters
Data Bus Output
Bidirectional high-speed parallel bus signal exchange with CPU main processor
Backup Power Output
Built-in lithium battery continuous power supply for SRAM data retention during power outage
Status Indicator Output
Small onboard LED to display memory board normal operation/fault status
Core Features
512KB SRAM storage capacity for program, recipe and fault data
Hot-swap maintenance without PLC power cut-off
Built-in replaceable backup battery for data long-term retention
Full hardware compatibility with all ABB AC500 CPU modules
Compliant with CE, UL industrial electrical safety standards