Table 10-17 Structure Of Station Status 3 (Byte 2) - Siemens Simatic S7-300 CPU 31xC Series Installation And Operating Instructions Manual

Station Status 3

Table 10-17 Structure of station status 3 (Byte 2)

Bit Meaning
0 to 6 0: These bits are always "0"
7 1:The incoming diagnostic messages exceeds the memory capacity of the DP slave.
The DP master cannot write all diagnostic messages sent by the DP slave to its diagnostic buffer.
Master PROFIBUS address
The "Master PROFIBUS address" diagnostic byte stores the DP address of the DP master:
• that has configured the DP slave and
• has read and write access to the DP slave.
Table 10-18 Structure of the Master PROFIBUS address (byte 3)
Bit Meaning
0 to 7 DP address of the DP master that has configured the DP slave and has read/write access to that DP slave.
FFH: DP slave was not configured by a DP master
Vendor ID
The vendor ID contains a code specifying the type of the DP slave.
Table 10-19 Structure of the manufacturer ID (byte 4 and 5)
Byte 4
80
H
80
H
80
H
81
H
80
H
80
H
S7-300, CPU 31xC and CPU 31x: Installation
Operating Instructions, Edition 08/2004, A5E00105492-05
Byte 5 Vendor ID for the CPU
D0 313C-2-DP
H
D1 314C-2-DP
H
EE 315-2 DP
H
17 315-2 PN/DP
H
F0 317-2 DP
H
F1 317-2 PN/DP
H
Debugging functions, diagnostics and troubleshooting
10.7 Diagnostics of DP CPUs
10-29