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5 monitoring: telegram failure – Efficient Networks Siemens Sinamics S120 User Manual

Page 415

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Communication PROFIBUS DP/PROFINET IO

10.2 Communication via PROFIBUS DP

Drive Functions
Function Manual, (FH1), 07/2007 Edition, 6SL3097-2AB00-0BP4

415

Field

Value

No. of elements

1

Decimal places

Any

Note

You can operate a SIMATIC HMI together with a drive unit independently of an existing

control.

A basic "point-to-point" connection can only be established between two nodes (devices).

The "variable" HMI functions can be used for drive units. Other functions cannot be used

(e.g. "messages" or "recipes").

Individual parameter values can be accessed. Entire arrays, descriptions, or texts cannot

be accessed.

10.2.2.5 Monitoring: telegram failure

Description

After a telegram failure and a monitoring time has elapsed (t_An), bit r2043.0 is set to "1"

and alarm A01920 is output. Binector output r2043.0 can be used for an emergency stop, for

example.
After a delay time has elapsed (p2044), fault F01910 is output. Fault F01910 triggers fault

response OFF2 (pulse inhibit) for the supply and fault response OFF3 (emergency stop) for

SERVO/VECTOR. If no OFF response is to be triggered, the fault response can be

reparameterized accordingly.
Fault F01910 can be acknowledged immediately. The drive can then be operated even

without PROFIBUS.

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Figure 10-27 Monitoring: telegram failure