Structure Of Slave Diagnostic Data - Siemens CPU 313C Hardware And Installation Manual

7HVWLQJ )XQFWLRQV 'LDJQRVWLFV DQG )DXOW (OLPLQDWLRQ
 6WUXFWXUH RI WKH 6ODYH 'LDJQRVWLF 'DWD ZKHQ WKH &38 LV XVHG DV
DQ ,QWHOOLJHQW 6ODYH
6WUXFWXUH RI WKH GLDJQRVWLFV PHVVDJH IUDPH
The figure below shows the structure of the diagnostics message frame for slave
diagnostics.
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
to
Byte x-1
Byte x
to
Byte y-1
Byte y
to
Byte z
1
Exception: if the DP master is wrongly configured,
the DP slave will interprete 35 configured address areas
(46 in byte 6)
H
Figure 11-6 Structure of slave diagnostic data
11-22
.
.
.
.
.
.
.
.
.
S7-300 Automation System, Hardware and Installation: CPU 31xC and CPU 31x
Station status 1 to 3
Master PROFIBUS address
High byte
Manufacturer ID
Low byte
Module diagnostics
(length depends on the number of the
configured areas of the intermediate
memory ) 1
Modul status (device-specific diagnostics)
(length depends on the number
of the configured address areas)
Interrupt status (device-specific diagnostics)
(length depends on interrupt type)
A5E00105492-03