Connection; Connecting Peripherals - Siemens SIMATIC IPC847C Getting Started

Connection

5.1

Connecting peripherals

Note before connecting
NOTICE
Connect only I/Os approved for industrial applications according to EN 61000-6-2. Shielded
interface cables must be used for interfaces integrated ex factory.
Note
Hot-plug I/O modules (USB) may be connected while the PC is in operation.
CAUTION
I/O devices that are incapable of hot-plugging may only be connected after the device has
been disconnected from the power supply.
Strictly adhere to the specifications in the I/O manuals.
NOTICE
The connected or built-in I/Os should not introduce a counter emf into the device.
A counter emf greater than 0.5 V to ground on the + 3.3 VDC / + 5 VDC / + 12 VDC power
rail due to a connected or integrated component can prevent normal operation or even
destroy the computer.
When measuring the counter emf, remember the following:
 The computer in question must be turned off and the power supply connector should be
 During the measurement, all cables from the plant to the computer should be
 All other components in the plant must be active.
18
WARNING
plugged in.
connected.
SIMATIC IPC847C
Getting Started, 06/2011, A5E02669190-03
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