SPNPM22 bus communication module

SPNPM22 is a Symphony INFI-90 DCS loop network processing communication module, the main management card of the loop bus, which controls the ring network token and cross site data routing.
Characteristics
1. Responsible for scheduling the INFI-90 ring bus master station, managing the communication timing of the entire network, and ensuring deterministic data exchange among multiple stations
2. Support dual loop redundant architecture, automatic switching of single loop faults, reducing the risk of system downtime
3. Integrated network fault diagnosis, board indicator light quickly locates loop disconnection and node loss faults
4. Unified network clock to achieve time synchronization among control stations and IO sub stations
5. VME rack plug-in card, easy to disassemble and maintain on site, suitable for long-term operation conditions in process industries

parameter
1. Compatible with Berry Symphony and INFI-90 system backplane racks
2. Ring bus communication speed of 1Mbps, capable of managing multiple control sub stations
3. Backboard powered by 24VDC, with low overall power consumption
4. Working temperature 0-60 ℃, protection level IP20
5. Often used in conjunction with SPNIS21 network interface to work with modules
Application
1. Thermal power and chemical DCS system ring network main processing unit
2. Network management of boiler and turbine process control cabinets
3. INFI-90 system spare parts replacement and hardware repair
4. Data forwarding routing between process control stations
5. Old DCS system hardware upgrade replacement parts

When the system experiences network lag, IO station offline, or loop error, SPNPM22 is the communication module that is prioritized for verification.