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4.9 Error handling
4.9.1 Overview
In EtherCAT there are the following two types of error messages:
n
Emergency error message
n
Standard error message
4.9.2 Emergency error message
Emergency error messages are generated on errors during state changes respectively at
hardware and diagnostic interrupts if the interrupt is activated by parameterization. Emer-
gency error messages are released within device-internal mechanisms and sent to the
master by means of the mailbox service.
Byte
0
1
2
3
4
5
6
7
EEC
ER
DATA
EEC -
E
mergency
E
rror
C
odes following ETG specifications:
0xFFxx: Vendor-specific emergency message (VIPA = 0xFF00)
0xA0xx: State Machine transition error, e.g. due to a configuration error (length,
address, settings). More information concerning this may be found at ETG.
ER
- Error register - State of the State Machine:
01: Init
02: Pre-Op
03: BootStrap
04: Safe-Op
08: Op
DATA - Error data with more information concerning the error
With a hardware interrupt or diagnostic interrupt respectively in DATA the
Manufacturer
Specific Error Field
(MEF) may be found. The field has the following structure:
Byte
0
1
2
3
4
5
6
7
EEC
ER
SLOT
TYPE
DIAG
MEF
SLOT - EtherCAT-Slot of the module where is the error from
TYPE - Interrupt type
01: Hardware interrupt
02: Diagnostics interrupt
DIAG - Error code, which is described at corresponding module.
Frame structure
VIPA System SLIO
Deployment
Error handling > Emergency error message
HB300 | IM | 053-1EC01 | en | 18-49
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