Emergency Message, Reaction - BONFIGLIOLI Active Cube User Manual

7.8.3 Emergency message, reaction

If a slave on the system bus suffers a fault, it transmits the emergency telegram. The
emergency telegram marks the node ID for the identification of the failed node via its
identifier
(8 bytes).
After a fault has been acknowledged on the slave, the latter again transmits an
emergency 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
0 - Error
1 - No Error
2 - Ignore
Behavior of the system bus master in the case of
Error:
As soon as the system bus master receives an emergency telegram, it also switches
to failure mode and reports the failed subscriber on the basis of its ID via the kind of
error. Only the subscriber is reported, not the cause of the error.
The fault message on the system bus master via
= node ID (hexadecimal) of the slave where a fault shutdown has occurred.
In addition, the system bus master reports the warning Sysbus (0x2000) via
270 Bit 13.
Status
If a fault shutdown occurs on a number of slaves, the first slave to transmit its emer-
gency telegram is displayed on the system bus master.
Behavior of system bus master in the case of
As soon as the system bus master receives an emergency telegram, it reports the
warning Sysbus (0x2000) via
Note:
52
and the existing
The system bus master receives the emergency tele-
gram and switches-off.
The Emergency Telegram is displayed as a warning.
The Emergency Telegram is ignored.
Operation mode - parameter 989 = 0 – Error
Operation mode - parameter 989 = 1 – No Error
Warning status
In both cases, the Boolean variable SysbusEmergency with source num-
ber 730 is set to TRUE in the system bus master. It can be used in the
system bus master and (in transmission via a TxPDO) in the slaves for a
defined shutdown.
SysbusEmergency is also set if the system bus master breaks down.
Resetting of SysbusEmergency is done with the fault acknowledgment.
EM-ABS-01 for ACU
fault message via
Emergency Reaction
Function
Emergency Reaction
Type of error
Emergency Reaction
270 Bit 13.
its data contents
989.
989 = 0 -
260 is 21nn with nn
Warning
989 = 1 / No Error:
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