Allen-Bradley 1771-IG: TTL Logic and 5 V Wiring Checks
Check 1771-IG TTL HIGH/LOW logic thresholds, field supply ripple and 1771-WC wiring before replacing an input module.
Manufacturer: ABB
Product No.: SPASO11
Country of origin:Sweden
Product Type: Analog Output Module
Barcode: 85389081
Payment: T/T, Western Union
Weight: 880g
Dimensions: 415 mm x 325 mm x 125 mm
Shipping port: Xiamen
Warranty: 12 months
The ABB SPASO11 is a high-density Analog Output Module engineered to act as the physical control interface between the Symphony Plus execution architecture and industrial process modulators. Functioning as a fundamental component of the S+ HR Series (Harmony Rack) platform, this module translates digital processor variables into high-resolution analog instrumentation paths. The ABB SPASO11 delivers 14 independent channels designed to drive critical industrial field assets such as pneumatic positioners, variable frequency drives, and multi-range current loops with deterministic feedback processing.
| Manufacturer | ABB |
| Product ID | SPASO11 |
| ABB Type Designation | SPASO11 |
| Product Type | 1-O_Module (Analog Output Module) |
| Channel Type | AO |
| Number of Output Channels | 14 |
| Supported Configuration Spans | 4-20mA, 1-5VDC |
| Product Net Depth / Length | 73.66 mm |
| Product Net Height | 358.14 mm |
| Product Net Width | 271.78 mm |
| Number of Batteries | 0 |
| WEEE Category | 5. Small Equipment (No External Dimension More Than 50 cm) |
| Customs Tariff Number / HS Code | 85389081 |
| Shipping Weight (Calculated) | 0.88 kg |
| Package Dimensions (Calculated) | 415 mm x 325 mm x 125 mm |
The SPASO11 modernizes the role previously fulfilled by the vintage ASO11 and AS01 functional cards. Although pinouts map flawlessly to old terminal units, executing a loop modernization requires verifying your operational block libraries inside S+ Engineering (Composer) to guarantee correct calibration registers match this revision.
Operating channels near high loop impedance thresholds can cause output driver truncation or analog errors. Ensure total line impedance plus device input load remains securely beneath the hardware channel limit to prevent signal clipping during peak 20mA conditions.
Always route the field analog signals using individual twisted-pair shielded cables. Loop shields must be continuously bound together and referenced to the dedicated instrument ground bus on the rack chassis; floating shields or multi-point grounding will introduce induced noise, distorting valve position commands.
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Returns & Warranty



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 .
| Color pattern |
Silver
Green
|
| Country of origin |
Sweden
|