Scami Sistemi - Honeywell HS-81 - S81-E2002-1 Rack Control Card
This card manages the communications among the rack’s cards and the CPU’s; it receives data from the CPU and it sorts them among the 13
cards in the rack through 2 different communication channels and vice versa.
Only one card E2002 for each rack is necessary and it has to be placed in the 14th available slot.
Main Features
• Suitable for applications fault-tolerant up to SIL3 level in accordance with IEC-61508
• Allows the interchange of information between the CPUs and the cards in the rack through 13 serial connections (for cards) and 2 BUSes in a loop (for the CPU).
• Can be hot-swapped
• No need of connections to the field
• Communication protocol with Manchester code managed by FPGA
• SMD technology multilayer circuit
• Front plug-in on a 19” rack, with locking screws
• Absorption 20 mA at 24 VDC