Description
Hard-Numbers: Technical Specifications
- Protocol Support: PROFIBUS DP V0/V1 (Class 1 Master), IONet 100Mbps
- Port Count: 2× RJ45 IONet, 1× DE-9 (D-sub 9-pin) PROFIBUS RS-485
- Data Rate: 100 Mbps (IONet); 9.6 kbps – 12 Mbps (PROFIBUS)
- Max Slaves: Up to 125 PROFIBUS DP slaves
- Isolation Rating: 2500 VAC RMS field‑to‑backplane
- Power Requirements: 28.0 VDC nominal (27.4–28.6 VDC), 0.18 A max
- Operating Temperature: -20°C to +55°C (-4°F to 131°F)
- Processor: 32‑bit BPPB RISC, 8MB SDRAM, 16MB Flash
- Hazardous Rating: Class I Div 2, Zone 2, ATEX/IECEx, UL E207685
- Dimensions: 160 × 80 × 32 mm
- Weight: 0.43 kg
- Accessory Board: IS200SPIDG1A (Terminal ID Board)
IS220PAICH2A
The Real-World Problem It Solves
Retrofitting Mark VIe controllers into legacy plants with PROFIBUS DP field devices creates protocol mismatches. Generic gateways introduce latency, poor diagnostics, and no native redundancy.
Where you’ll typically find it:
- Gas turbine control systems integrating PROFIBUS variable frequency drives
- Power plant auxiliary systems with analog PROFIBUS transmitters
- Industrial retrofits connecting Mark VIe to existing PROFIBUS I/O networks
Bottom line: delivers deterministic, isolated, redundant PROFIBUS DP master control for Mark VIe.
Hardware Architecture & Under-the-Hood Logic
uses a dedicated BPPB processor and Hilscher COM‑C communication chip. Full galvanic isolation separates fieldbus from the control backplane.
- Receives control commands from Mark VIe over redundant IONet.
- BPPB processor maps I/O data to PROFIBUS DP protocol frames.
- Hilscher COM‑C chip manages physical layer and bus master polling.
- Isolation barriers block ground loops and transient voltage spikes.
- Polls up to 125 slaves; handles input/output data exchanges.
- Converts slave responses back to IONet packets for the controller.
- Runs continuous bus diagnostics and reports faults via front LEDs.
Field Service Pitfalls: What Rookies Get Wrong
Incorrect Bus TerminationSkipping the 120Ω terminator or setting DIP switches wrong causes signal reflections. Bus errors and intermittent communications occur.
- Field Rule: Enable on‑board terminator (DIP ON) only if module is at the physical end of the bus.
Baud Rate MismatchSetting gateway speed different from slaves locks the bus. FAULT LED flashes rapidly with zero communication.
- Quick Fix: Verify all devices share the same rate (standard: 1.5 Mbps or 12 Mbps). Match in Toolbox.
Shield Ground LoopsPROFIBUS cable shield grounded at both ends creates circulating noise currents. Data corruption and frequent bus resets happen.
- Field Rule: Ground shield only at the control cabinet; leave field device ends ungrounded.
Hot‑Swap Without Bus DisablePulling the module while PROFIBUS is active crashes the entire bus. All slaves go offline unexpectedly.
- Quick Fix: Disable the bus in Toolbox or power down the chassis before removing .
IS220PAICH2A
Commercial Availability & Pricing Note
Please note: The listed price is for reference only and is not binding. Final pricing and terms are subject to negotiation based on current market conditions and availability.
