Diagnostics Via Input Image - Siemens SINUMERIK ONE NCU 1760 Equipment Manual

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Connectable components
11.2 PP 72/48D PN
11.2.4.2

Diagnostics via input image

Table 11-28 Diagnostics input image
Byte
Bit7
d+0
count_2
d+1
Table 11-29 Messages in byte 0
Bit
7
6
5
4
3
2
1
0
Note
The "alive and well" counter is a 3 bit modulo counter at the PP application level. The PP
application can be monitored using this counter. Failure of the application software does not
generally result in a communication failure, as this is developed in a hardware-supported
manner. The watch dog switches off the digital outputs, while the inputs remain at their last set
values.
Table 11-30 Messages in byte 1, depending on the "alive and well" counter
"alive and
well" counter
0
1
2
3 ... 7
120
Bit6
Bit5
count_1
count_0
Signal name
Message
count_2
alive and well 2
count_1
alive and well 1
count_0
alive and well 0
T_Alarm_2
Temperature not within the operating temperature range defined for the
module
T_Alarm_1
Critical temperature exceeded
Diag_2
Overload DO byte 5/4
Diag_1
Overload DO byte 3/2
Diag_0
Overload DO byte 1/0
Value
Message
byte 1
0
Reserved
Temperature value
5
Internal error, system error
Effect: The "PNFault" LED is activated. The outputs are disabled. The value
0x80 is stored in status byte 1.
Remedy: Switch the module off and on again.
0
Reserved
Bit4
Bit3
T_Alarm_2
T_Alarm_1
Status_1
Equipment Manual, 02/2020, A5E45627861B AB
Bit3
Bit1
Diag_2
Diag_1
Bit0
Diag_0
NCU 1760

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