5.
Block diagram
6.
Hints against noisy environment
All in puts and out puts are pro tec ted against noisy en vi ron ment and high vol ta ge
spikes. Ne vert he less the lo ca ti on should be se lec ted to en su re that no ca pa ci ti ve
or in duc ti ve in ter fe rence can have an ef fect on the in stru ment or con nec tion li nes.
It is ad visab le:
• To use shiel ded, twi sted pair cables.
• The wi ring of shields and ground (0V) should be star- sha ped.
• The di stan ce to in ter fe rence sour ces should be as far as pos si ble. If ne cessa -
ry, pro tec ti ve scre en or me tal en clo su res must be pro vi ded.
• Coils of re lays must be supp lied with fil ters.
• Par al lel wi ring of in put si gnals and AC po wer li nes should be avoi ded.
ERMA-Electronic GmbH
6
5. Block diagram
FPGA
PCI-Target-
Controller
Input-
and
Output-
Logic
SSI-Interface
SSI-Interface
PCI-Bus
Optional
Isolation
Summary of Contents for SSI 1417-S04
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