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External diagnostics, Setting parameters – Pilz ST SB DP S, SW paket PROFIBUS-DP User Manual

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PROFIBUS-DP-Slave Operating Manual

4-3

Setting Parameters

Byte 2 Bit 1:

Stat_Diag

Byte 2 Bit 0:

Prm_Req

Byte 3 Bit 7:

Ext_Diag_Overflow

Byte 5-6: ID-number 2500

H

(ID-number assigned through PROFIBUS

User Organisation)

INFORMATION
For details of what the parameters mean, please refer to the PROFIBUS
standard EN 50170 Volume 2.

External diagnostics

On the PSS(1) DP-S and PSS SB 3006 DP-S, external diagnostics are
limited to device-related diagnostics. ID and channel-related diagnostics
are only sensible if more than 61 Bytes of user-specific diagnostic data are
to be transferred. These diagnostic types are not described in this manual.
Please refer to EN 50170 and note also that these applications may not be
possible with all Master-Slave configurations.

Device-related diagnostics

Device-related diagnostics automatically detect whether the PSS is in a
RUN or STOP condition. A maximum of 61 Bytes of memory is available
for additional user-specific messages.

Device-related diagnostics without user-specific messages:

Only 2 data bytes are required for this type of diagnostics: one data byte
for the coding and one for the contents. The two data bytes correspond to
Bytes 7 and 8.

Enter the following values in the data block:

.

.

.

DL

DR

DW 0259

Byte 8 Byte 7

...
DW 0812 KF

04

.

.

.