کارت کنترلر رک اسکامه SCAME SISTEMI مدلS81-E2002-1

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 14
th
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

Operation
The card is used only to manage the communication between rack and cards and between the racks and the CPUs of the
panel.
The communication is redundant and it works on two separate channels, Link A and Link B; in case of interruption on one of the
two connections, the panel will work normally, although signaling a fault in communication.