Emergency Message, Reaction - BONFIGLIOLI actice Instruction Manual

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Table of Contents

4.8.3

If a slave on the system bus enters a fault state, it transmits the emergency telegram.

The emergency telegram marks the node ID for the identification of the failed node

via its identifier and the existing fault message via its data contents (8 bytes).

After a fault has been acknowledged on the slave, the latter again transmits an emer-

gency telegram with the data content zero.

The emergency telegram has the identifier 128 + node ID ( = 129 ... 191)

The system bus master evaluates the emergency telegrams of the slaves. Its reaction

to an emergency telegram can be set with

Operation mode - parameter 989 = 0 – Error

Behavior of the system bus master in

As soon as the system bus master receives an emergency telegram, it also switches to

failure mode and reports the failed node on the basis of its ID via the kind of error.

Only the node is reported, not the cause of the error.

The fault message on the system bus master via

= node ID (hexadecimal) of the slave in which a fault switch-off exists.

In addition, the system bus master reports the warning Sysbus (0x2000) via the pa-

rameter

If a fault switch-off occurs on a number of slaves, the first slave to transmit its emer-

gency telegram is displayed on the system bus master.

Operation mode - parameter 989 = 1 – No Error

Behavior of system bus master in the case of

ror:

As soon as the system bus master receives an emergency telegram, it reports the

warning Sysbus (0x2000) via the parameter

Note:

06/05