Manualshelf

User`s manual

ManualsBrandsDCS ManualsCooktopCPU-366
31323334353637383940
3-16 Series 90™-30 CPU with Embedded PROFIBUS Interface – November 2004 GFK-2334A
3
PROFIBUS DPV1 Setup Parameters
The default values in this dialog box are populated by the device’s GS? file.
Enable DPV1 Support
Check this box to enable DPV1 settings for the selected PROFIBUS device. The device's
GS? file determines which settings are editable and which are read-only.
Clear this check box to disable DPV1 settings. The values of all parameters are retained
until the DPV1 settings are enabled again for the selected device.
Maximum Channel Data Length
The maximum length in bytes of the DPV1 telegrams. The slave adapts its buffer size for
the respective data count.
Valid range: 4 through 244 bytes.
Maximum Alarm PDU Length
The maximum length in bytes of the DPV1-Alarm telegrams.
Valid range: 4 through n, where n is calculated by the following formulas:
m = Max_Diag_Data_Len - 6
n = Max(Min(m,64),4)
Max_Diag_Data_Len is a value specified in the GS? file. If m is greater than 64, n is set to
64. If m is less than 4, then n is set to 4. Otherwise, n is set to m.
If n is set to 4, the only valid Maximum Alarm PDU Length is 4.
Default: The value n calculated by the above formulas.
Diagnostic Update Delay
The maximum number of extra diagnosis cycles that the master waits to obtain from a
slave the release for a DATA_EXCHANGE. If the Diagnostic Update Delay is set to 0, the
master waits for one diagnosis cycle before reporting an error. If the Diagnostic Update
Delay is set to 15, the master waits for 16 diagnosis cycles before reporting an error. The
master waits for one diagnosis cycle more than the value of the Diagnostic Update Delay.
Some newer slave devices require more time for the consistency testing for the
processing of the SET_PRM parameterizing telegrams. Therefore a simple diagnosis
cycle may be insufficient until the participant can inform the Master of the release for the
DATA_EXCHANGE.
Valid range: 0 through 15.
Maximum Active Alarms
The maximum number of possible active alarms.
Choices:
1 alarm of each type
2, 4, 8, 12, 16, 24 or 32 alarms in total