Description
Detailed Parameter Table
| Parameter Name | Parameter Value |
| Product Model | V18345-1010221001 |
| Manufacturer | ABB (Legacy Siemens Simatic S5 rebranded) |
| Product Category | Digital Input Module |
| Series | Simatic S5-100U (ABB Legacy Range) |
| Input Channels | 16 channels |
| Input Type | 24 VDC Sink/Source |
| Input Voltage Range | 20-30 VDC |
| Logic “1” Threshold | +15 to +30 VDC |
| Logic “0” Threshold | -3 to +5 VDC |
| Isolation | 500 V AC (Group isolation) |
| Response Time | ≤ 5 ms |
| Field Connection | Screw terminals (front-mounted) |
| Backplane Current | 100 mA max |
| Operating Temperature | 0°C to +60°C |
| Certifications | CE, UL (Original Design) |
ABB V18345-1010221001
Product Introduction
The ABB V18345-1010221001 is a legacy digital input module originally designed for Siemens Simatic S5-100U PLC systems, later integrated into ABB’s portfolio through industrial acquisitions. This rugged 16-channel module serves as the critical interface for monitoring field devices like pushbuttons, limit switches, and proximity sensors in automated manufacturing environments. Engineered for reliability in harsh conditions, the V18345-1010221001 converts 24 VDC signals into PLC-processable data with deterministic sub-5ms response times.
As part of ABB’s supported legacy range, this module maintains operational continuity for aging S5-100U installations across automotive, heavy machinery, and material handling sectors. Its technical design emphasizes noise immunity and group isolation (500 V AC), preventing signal corruption in electrically noisy environments. While newer S7 platforms have superseded the S5 architecture, the ABB V18345-1010221001 remains vital for extending the lifecycle of mission-critical systems where migration isn’t feasible.
Core Advantages and Technical Highlights
The ABB V18345-1010221001 delivers exceptional longevity-focused value:
Industrial-Grade Durability: Designed for 24/7 operation in manufacturing floors, its robust construction withstands vibration, temperature swings, and electrical interference common in metalworking or assembly plants.
Simplified Diagnostics: LED per-channel status indicators provide instant visual confirmation of signal state, accelerating troubleshooting during production downtime.
Backward Compatibility: Seamlessly integrates with existing S5-100U racks (e.g., 6ES5 100-8MA02) and ABB-rebranded power supplies, preserving investments in legacy infrastructure.
Fail-Safe Group Isolation: Channels grouped in banks share 500 V AC isolation barriers, preventing cascading failures while reducing component complexity.
High Noise Immunity: Input filters suppress electromagnetic interference (EMI) from motors/VFDs, ensuring signal integrity in electrically contaminated environments.
Typical Application Scenarios
Automotive Production Lines: Monitors robotic workcell safety gates, fixture clamps, and conveyor positioning sensors in decades-old assembly plants still running S5-100U systems.
Steel Rolling Mills: Reads limit switches on roller tables and coilers where high temperatures and electromagnetic noise demand rugged modules like the V18345-1010221001.
Packaging Machinery: Tracks fill-level sensors, film-seal positioners, and emergency stops on legacy packaging lines requiring minimal downtime.
Power Substation Auxiliary Control: Interfaces with breaker position indicators and alarm annunciators in secondary switchgear control cabinets.
Legacy Material Handling: Monitors palletizer height sensors and stacker crane position switches in warehouses with S5-based automation.
ABB V18345-1010221001
Related Model Recommendations
6ES5 100-8MA02: S5-100U rack unit housing the V18345-1010221001 module.
ABB V18345-1010001: 32-channel digital input variant for high-density applications.
ABB V18345-1010121: 16-channel digital output module (relay) for complementary control.
ABB V18345-1010321: 8-channel analog input module for same rack integration.
6ES5 955-3LC41: S5-100U power supply unit (120/230 VAC input).
ABB PM864AK01: Modern AC 800M controller for S5 migration projects.
S7-1500: Siemens’ contemporary PLC for system upgrades.
Installation, Commissioning and Maintenance Instructions
Installation Preparation: Mount the ABB V18345-1010221001 vertically in an S5-100U rack using retaining clips. Ensure ambient temperature stays ≤60°C. Verify 24 VDC field supply stability (±15%). Use ferrite cores on field cables near VFDs/motors. Discharge electrostatic buildup before handling.
Maintenance Suggestions: Clean terminal blocks annually with contact spray to prevent oxidation. Check LED functionality monthly. Replace modules showing >10% input threshold drift. Stock critical spares due to discontinued status. For migrations, use ABB’s S5-to-AC 800M conversion kits.
Service and Guarantee Commitment
ABB provides limited legacy support for the V18345-1010221001:
5-year spare parts availability (post-discontinuation)
Repair services through certified partners
Migration consultancy to modern platforms
Technical documentation access via ABB Library
No standard warranty applies; condition-based service agreements available. Compatibility guaranteed only with original S5-100U components.
