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Getting Started

2-12

Distributed I/O Device ET 200M

EWA-4NEB780600602-06

SM 322: Short Circuit to L+

1. Open the front door of the DO module and use a wire to short-circuit the digital

output 0 (terminal 3) to L+ (terminal 1).

2. Watch the status LEDs.

IM 153-2:

– SF: comes on

SM 322; DO 8 x 24 V DC/0.52 A:

– SF: comes on ⇒ Diagnostic message has been issued

– F0: comes on ⇒ Channel error

– 0: Off ⇒ Output is not active

3. Evaluate the diagnostic message.

Result:

– Station status 1: Byte x.3 is set ⇒ External

diagnostics

– Module diagnosis Byte (x+7).4 is set ⇒ Slot 5

– Channel-specific diagnosis:

Byte (x+16).0 to (x+16).5: 000100

⇒ Slot 5

Byte (x+17).0 to (x+17).5: 000000

⇒ Channel 0

Byte (x+18).0 to (x+18).4: 00001

⇒ Short circuit

4. Remove the wire between terminal 3 and terminal 1.

Evaluate the diagnostic LEDs again.

IM 153-2:

– SF: Off

SM 322; DO 8 x 24 V DC/0.52 A:

– SF: Off

– F0: Off

– 0: On

The diagnostic message is erased.

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Siemens SIMATIC Distributed I/O System DP/ASi Link Specifiche Pagina 38