Diagnostic Parameter Register; System Variables Of The Diagnostic Parameter Register - Phoenix Contact ILC 131 ETH Installing And Operating Information

Table 4-3

System variables of the diagnostic parameter register

System variable
MASTER_DIAG_PARAM_REG_HI
MASTER_DIAG_PARAM_REG_LOW
MASTER_DIAG_PARAM_2_REG_HI
MASTER_DIAG_PARAM_2_REG_LOW
8385_en_02
4.4

Diagnostic parameter register

The diagnostic parameter register provides additional information on the error indicated in
the diagnostic status register. The following information is stored in the diagnostic parame-
ter register:
– Error location
– Error code
15
3
Segment number
Example: device number 3.1
Figure 4-1 Error location in the diagnostic parameter register
Special case: if an interface error cannot be located, the value 128 is indicated in the di-
agnostic parameter register, i.e., bit 7 is set.
The diagnostic parameter register is rewritten whenever an error occurs. The diagnostic pa-
rameter register contains the value "0" if no errors are detected.
Type
BYTE
BYTE
BYTE
BYTE
System variables and status information
8 7
Position in the segment
Meaning
Diagnostic parameter register, high byte
Diagnostic parameter register, low byte
Extended diagnostic parameter register, high byte
Extended diagnostic parameter register, low byte
0
1
6219B040
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