Description
‑ Power Supply：Power supplied by rack back‑plane, 5VDC logic power supply
‑ Mechanical Structure：Rack plug‑in single‑width module for Symphony Plus HR rack；overall weight approx 0.30kg
‑ On‑board Resources：32‑bit dual‑core industrial processor, RAM & flash memory storage, INFI‑NET ring protocol processing circuit, hardware self‑diagnosis circuit, message buffer storage
‑ Communication Interface：INFI‑NET dual‑ring coaxial interface; Harmony Expander back‑plane bus
‑ Galvanic Isolation：Transformer isolation between INFI‑NET ring network side and rack internal bus side, isolation voltage 1500VRMS, restrain industrial site ground loop interference.
‑ Core Function：INFI‑NET dual‑ring network data routing, message packaging‑forwarding, network fault diagnosis, data interaction between controller and each DCS node, off‑load network processing for main controller, fault status upload to controller.
‑ Protection：Internal over‑current, over‑temperature monitoring protection, coaxial port surge suppression.
‑ Status LED Indicators：Run LED, fault LED, Ring A / Ring B network status LED.
‑ Weight：approx 0.30kg
‑ SPNPM22 is dedicated network processing module for Symphony Plus HR rack, upgraded replacement for old INNPM22 of INFI90 system. Responsible for INFI‑NET dual redundant ring network management, realizes data interaction among multiple PCU control units, operator stations, engineering stations and remote I/O sub‑racks. It bears large‑volume network message processing, effectively reduce computing load of SPBRC main controller, ensure control logic real‑time performance will not be affected by network traffic fluctuation。
‑ Support ring network fault self‑healing, when one segment of INFI‑NET ring cable breaks, module automatically switch to ring‑back working mode, whole system communication keeps normal without interruption. Comprehensive self‑diagnosis function, detect module hardware failure, ring network breakage, communication abnormality; fault alarm information upload to DCS operator station. Support hot‑swap online replacement, no need power‑off for maintenance.
‑ Installed on Symphony Plus HR standard control rack, cannot work independently, must cooperate with SPBRC400/SPBRC410 bridge controller and INIIT series network termination module.
Difference compared with SPIET800：SPNPM22 is responsible for INFI‑NET dual‑ring control network routing inside DCS system; SPIET800 is Ethernet gateway module, responsible for converting internal bus to standard Ethernet for upper‑level operation network communication.
‑ Complete INFI‑NET dual‑ring network data routing, message packaging and forwarding, realize bidirectional data exchange between local control rack and each DCS system node.
‑ Monitor module hardware operating status, INFI‑NET ring network link health status, fault information upload to DCS system.
‑ No independent process control logic function, all control algorithm executed by upper‑level SPBRC series bridge controller.
‑ Back‑plane：Rack internal Harmony Expander back‑plane bus for data communication and module power supply.
‑ External interfaces：INFI‑NET Ring A / Ring B coaxial ring‑network interfaces, connect to DCS control ring via coaxial cable.
‑ Mounting：Plug‑in hot‑swap installation on Symphony Plus HR standard rack
‑ Operating Temperature：‑20 ℃ ~ +60 ℃
‑ Storage Temperature：‑40 ℃ ~ +85 ℃
‑ Relative Humidity：5‑95 %RH, non‑condensing
‑ Pollution degree：Degree 2
‑ Protection Class：IP20, cabinet‑internal installation.
- SPNPM22 network processing module（SPNPM22）
Complementary parts: Symphony Plus HR control rack, SPBRC400/SPBRC410 bridge controller, INIIT network termination module, INFI‑NET coaxial cable, system power supply, operator & engineering workstation.
‑ Insert module into dedicated network slot of HR rack, tighten front‑panel locking knobs to guarantee reliable back‑plane connector contact, module supports hot‑swap replacement.
‑ INFI‑NET coaxial cable installation strictly follow specification, avoid excessive bending; confirm Ring A and Ring B wiring correct, wrong wiring will trigger ring‑network break fault.
‑ After module replacement, download network configuration, verify INFI‑NET dual‑ring network running status, data interaction between racks normal.
‑ When ring network fault alarm occurs, check coaxial cable, terminal termination module status preferentially.
Power plant, petrochemical, pulp‑and‑paper industry Symphony Plus DCS control cabinets; core network processing spare‑part for INFI‑NET dual‑ring control network, apply for large‑scale DCS system multi‑rack interconnection occasion.
- ABB Symphony Plus SPNPM22 network processing module (SPNPM22), dedicated INFI‑NET ring network gateway module for Symphony Plus HR‑series DCS, upgrade substitute for INNPM22。
- High‑performance network message processing, undertake INFI‑NET dual‑ring data routing and forwarding, support ring‑network self‑healing, hot‑swap online replacement.
- Off‑load network processing burden for main controller, guarantee control logic real‑time determinism; transformer isolation, comprehensive hardware and ring‑link self‑diagnosis, alarm upload function.
- Rack plug‑in single‑width hot‑swap structure, cabinet‑internal IP20 application, match SPBRC series bridge controller.
- Only undertake inner‑system INFI‑NET ring network data routing forwarding, do not run process control logic, distinguish from SPIET800 Ethernet transfer module.
- Discontinued legacy DCS spare‑part, used for old‑system maintenance and retrofit projects。
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