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AXC 1050 (XC)
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PHOENIX CONTACT
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8.3
Diagnostic parameter register
The diagnostic parameter register provides additional information on the error indicated in
the diagnostic status register. The error code is stored in the diagnostic parameter register
and the error location in the extended diagnostic parameter register. The error location is
stored as a slot number. This starts at 1 and corresponds to the sequential number of the
Axioline F modules that are installed one after another.
The diagnostic parameter register is rewritten whenever an error occurs. If no interference
has been detected, the diagnostic parameter register contains the value 0.
Exception:
if an interface error cannot be located, the value 128 is displayed in the diag-
nostic parameter register (bit 7 is set).
Table 8-2
System variables of the diagnostic parameter register
System variable
Type
Meaning
AXIO_DIAG_PARAM_REG_HI
BYTE
Diagnostic parameter register (high byte)
AXIO_DIAG_PARAM_REG_LOW
BYTE
Diagnostic parameter register (low byte)
AXIO_DIAG_PARAM_2_REG_HI
BYTE
Extended diagnostic parameter register (high byte)
AXIO_DIAG_PARAM_2_REG_LOW
BYTE
Extended diagnostic parameter register (low byte)