SST-PFB3-VME-2 Dual Channel PROFIBUS-DP VME Communication Card

SST-PFB3-VME-2 Dual Channel PROFIBUS-DP VME Communication Card

SST-PFB3-VME-2 is a dual channel PROFIBUS-DP VME communication card produced by Molex Woodhead. SST-PFB3-VME-2 is suitable for GE Speedtronic Mark VI gas turbine/steam turbine unit VME rack (matched with IS2020RKPSG2A rack power supply)

Positioning: 6U VME bus dual channel PROFIBUS-DP communication interface card, with a single card integrating two completely independent DP channels. Each dual channel is equipped with an independent processor and isolation circuit, which do not interfere with each other.

SST-PFB3-VME-2 Dual Channel PROFIBUS-DP VME Communication Card

Hardware interface layout

Two DP bus ports: two independent DB9 female heads (Channel A/Channel B), electrical 4000V isolation, surge and overcurrent protection
RS232 debugging serial port: used for firmware download, DP network diagnosis, and configuration upload
Status indicator light: Each channel has independent dual color LEDs, which respectively indicate bus operation, faults, and communication interruptions
VME backplane: standard VME A24/D16, A16/D16 addressing, backplane+5V power supply, typical power consumption 180mA@5V
Storage: Dual channel independent Flash, power off to save two DP network configurations separately, without overlapping each other

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PROFIBUS protocol capability (two channels are completely identical)

1. Working mode: DP Class1 real-time master station+Class2 diagnostic master station/DP slave station, can run simultaneously
2. Protocol standards: DP-V0 (periodic IO), DP-V1 (non cyclic parameter read/write, device diagnosis), underlying FDL message listening
3. Full baud rate compatibility: 9.6k~12Mbps, supports automatic baud rate recognition
4. Maximum single channel mount: 122 DP slaves, single channel IO throughput: 1984 bytes input/1968 bytes output
5. Electrical isolation: Two DP buses are completely isolated, and one short circuit/fault will not affect the other communication