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Faults and Diagnostics
13.3 Data Errors
When Do Data
Errors Occur?
Where are Data
Errors Indicated?
13
How are Data
Errors
Acknowledged?
13-6
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If new parameters are transferred to the module, the FM 450-1 checks these
parameters. If errors occur during this check, the module signals these data
errors.
Wrong parameters are not accepted by the module.
The data errors are entered with their error numbers in DB1 by the FC
CNT_CTRL. You can access this data word in the user program via variable
identifier 'DA_ERR_W'. Table 13-3 shows the number of the data errors and
the meaning of these errors.
Table 13-3
Data Error Numbers and their Meanings
No.
0
No error
201
Value too great for receiver selection
202
Value too great for diagnostics signal pair
203
Value too great for signal evaluation
204
Value too great for input filter of the 24 V counter signals
205
Value too great for the input filter of the digital inputs
206
Change of direction not permissible
207
Value too great for behavior of the digital output 1Q0 (2Q0)
208
Value too great for behavior of the digital output 1Q1 (2Q1)
209
Pulse duration wrong or too long
211
Wrong operating mode selected
212
No gate specified or both gates specified
215
When parameterizing the process interrupt 'Reaching the comparison value in
up or down count direction', a different count direction was specified to that
specified in the parameterization of the behavior of the outputs 'Output active
for one pulse duration in up or down direction'. The directions must agree.
216
Interrupts from the gate control only possible in the operating modes with gate
control.
217
In the case of the behavior of the digital outputs 'Active between the compari-
son value and overflow' or 'Active between comparison value and underflow',
no interrupt is permissible on reaching the comparison values.
Correct the values for the parameters in accordance with the specifications.
Transfer the corrected parameter set again to the FM 450-1. The FM 450-1
checks the parameters again and deletes the data error in DB1.
Meaning
FM 450-1 Counter Function Module
C79000-G7076-C450-01
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