Product Description
The Festo ASI-20-EVA-C is a compact AS-Interface slave module designed for controlling pneumatic valves in industrial automation systems. This component connects up to 2 solenoid valves directly to the AS-i bus, combining data transmission and power supply over a single 2-wire flat cable. Certified to AS-Interface Specification V2.1, the module achieves IP65 protection and supports extended addressing for up to 62 slaves per master.
Key Features & Advantages
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Integrated Data and Power Transmission: The AS-i system transports both communication signals and device power over the same unshielded 2-wire cable, eliminating complex separate wiring for sensors and valves
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Compact Design for 2 Valve Positions: Controls up to 2 solenoid valves (2 outputs) with integrated status LEDs for each output, providing clear visual indication of switching states for rapid troubleshooting
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Address Range 1-31 with Extended Addressing: Factory default address is 00; must be set to an unused address between 01 and 31 before commissioning. Supports V2.1 extended addressing mode (A/B slaves) enabling up to 62 slaves per AS-i master
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IP65 Protection Class: Fully assembled module achieves IP65 protection according to EN 60529, dust-tight and protected against water jets, suitable for demanding industrial environments
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Integrated Diagnostic LEDs: Features ASI-PWR (green) for bus voltage, Fault (red) for errors, AUX (green) for auxiliary power, and output LEDs (yellow) for each valve status, enabling fast system diagnostics
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Output Power Supply Options: Outputs can be powered either via the AS-i bus (max. 100 mA total) or via external auxiliary supply (max. 500 mA) using DIP switch configuration, with factory setting for external power
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PELV Safety Compliant: Designed for use with Protected Extra-Low Voltage power supplies according to IEC 742/EN 60742, ensuring safe operation with 4 kV isolation resistance
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Multiple Mounting Options: Supports rail mounting (EN 50022 35x15), screw mounting (3 x M4 holes), or slot mounting for cylinder grooves, providing flexible installation in various machine configurations
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Wide Operating Temperature Range: Operates reliably from -5°C to +50°C ambient temperature, with storage/transport temperature from -20°C to +70°C
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Valve Compatibility: Compatible with a wide range of Festo solenoid valves including ISO sizes 1-3, NAMUR valves, Tiger Classic series, MFH valves, and CPE valve families
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Integrated Watchdog Function: Built-in watchdog disables outputs approximately 40-100 ms after bus communication failure, ensuring defined safe state during network interruptions
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ID Code F, IO Code B (S-B.F): Default AS-i profile (ID code = FH, IO code = BH) provides standard 4-bit input / 4-bit output data exchange
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Functional Ground Connection: M3 screw terminal for functional ground connection ensures proper EMC performance and electrical safety
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Simple Address Assignment: Recommended addressing using Festo ASI-PRG-ADR addressing device with KASI-ADR adapter cable for quick node configuration
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No Parameterisation Required: AS-i slave does not require parameter setting (no parameter bits used), simplifying commissioning
Technical Specifications
Brand: Festo
Model: ASI-20-EVA-C
Product No.: 525641
Product Type: AS-Interface Slave Module
AS-i Specification: V2.1 (compatible with V3.0 masters)
Number of Outputs: 2 (for solenoid valves)
Number of Inputs: 0 (or 2 in other variants, depending on configuration)
Output Type: PNP transistor, 0.5 A max per output (with external supply)
Output Total Current: 0.5 A max (with external auxiliary supply), 100 mA max (powered via AS-i bus)
AS-i Supply Voltage: 26.5 V DC to 31.6 V DC
AS-i Current Consumption (Basic Electronics): less than 20 mA
Auxiliary Supply Voltage (AUX): 21.6 V DC to 26.4 V DC
Degree of Protection: IP65 (completely mounted)
Ambient Temperature: -5°C to +50°C
Storage Temperature: -20°C to +70°C
Housing Dimensions: Approx. 102 x 46 x 28.5 mm
Housing Material: Polycarbonate (UL94 VO)
Mounting: EN 50022 35x15 rail, screw mounting (3 x M4), or cylinder slot mounting
Electrical Connection (AS-i): 2-pin M12 socket (pin 1 = brown/+, pin 2 = blue/-)
Electrical Connection (Auxiliary): 2-pin M12 socket (pin 1 = 0 V, pin 2 = +24 V)
Valve Connection: Pre-assembled cable with M12 or M8 connector (0.5 m length, model dependent)
AS-i Profile: ID code = FH, IO code = BH (S-B.F)
Address Range: 01 to 31 (factory default 00)
Certifications: CE, UL Recognized
Standards: EN 50295, EN 60529, IEC 1131-2 type 2
DIP Switch Configuration for Load Voltage
With load voltage (factory setting): DIL switch positions 1 and 2 = Off, positions 3 and 4 = On. Outputs/valves powered via auxiliary supply (AUX).
With load voltage (via AS-i bus): DIL switch positions 1 and 2 = On, positions 3 and 4 = Off. Outputs/valves powered via AS-i bus.
LED Indication
ASI LED green on / Fault LED off – AS-i voltage applied, no fault
ASI LED off / Fault LED off – No AS-i bus voltage
ASI LED flashing / Fault LED on – AS-i address not set (= 00)
ASI LED on / Fault LED flashing – Short circuit/overload at inputs
ASI LED flashing / Fault LED flashing – Valve/actuator fault (diagnostic input = 0) or output short circuit/overload when powered via AS-i without auxiliary voltage
ASI LED on / Fault LED on – Bus communication failed (watchdog expired)
AUX LED on – Auxiliary supply voltage applied
AUX LED off – No auxiliary supply voltage
Ideal For
Industrial automation systems requiring AS-Interface bus communication for distributed valve control, retrofitting existing machines with valve manifold assemblies, applications needing up to 2 solenoid valve positions per AS-i node, paint shop environments requiring IP65 protection, automotive manufacturing assembly lines, packaging machinery, material handling systems, chemical processing facilities, and systems where simplified 2-wire bus wiring is preferred over traditional multi-pin connections.
Why Choose Festo ASI-20-EVA-C AS-Interface Component?
Choose the Festo ASI-20-EVA-C for its compact AS-i slave design controlling up to 2 valve positions with integrated power and data transmission over a single 2-wire cable. Featuring AS-i Specification V2.1 compatibility, extended addressing for up to 62 slaves per master, IP65 protection for harsh environments, user-configurable output power supply (via AS-i bus or auxiliary supply), integrated diagnostic LEDs for rapid troubleshooting (ASI-PWR green, Fault red, AUX green, output yellow), wide -5°C to +50°C temperature range, compatibility with multiple Festo valve families (ISO sizes 1-3, NAMUR, Tiger Classic, CPE series), flexible mounting options (rail, screw, or cylinder slot), built-in watchdog function for defined safe state on bus failure, PELV safety compliance, simple address assignment via ASI-PRG-ADR device, and German engineering quality. This AS-i component delivers reliable, flexible, and cost-effective distributed valve control for demanding industrial automation applications with simplified bus wiring.
Tags
#Festo #ASI20EVAC #525641 #ASInterface #ASi #ASISlave #ValveControl #BusComponent #IP65 #PneumaticControl #Fieldbus #DistributedControl #MalaysiaSupplier
