Special Memory Bytes Smb200 To Smb299 - Siemens SIMATIC S7-200 System Manual

Table A-19 Special Memory Bytes SMB200 to SMB299
DP is First DP is Second
Intelligent Intelligent
Module
SMB200 to SMB250 to
SMB215 SMB265
SMB216 to SMB266 to
SMB219 SMB269
SMW220 SMW270
SMB222 SMB272
SMB223 SMB273
SMB224 SMB274
SMB225 SMB275
SMW226 SMW276
SMB228 SMB278
SMB229 SMB279
SMB230 to SMB280 to
SMB249 SMB299
Note: SMB225 to SMB229, and SMB275 to SMB279 are updated each time the DP slave module accepts configuration/
parameterization information. These locations are updated even if a configuration/parameterization error is detected.
The locations are cleared on each power up.
S7-200 Programmable Controller System Manual
A5E00066097-02
Module
Module name (16 ASCII characters)
"EM277 ProfibusDP"
S/W revision number (4 ASCII characters)
xxxx
Error code
16#0000
16#0001
16#0002 to 16#FFFF
DP slave module's station address as set by address switches (0 - 99
decimal)
Reserved
DP standard protocol status byte
MSB
0 0 0 0 0 0
S1 S0 DP Standard status byte description
0 0
0 1
1 0
1 1
DP standard protocol - address of the slave's master (0 to 126)
DP standard protocol - V memory address of the output buffer as an
offset from VB0.
DP standard protocol - number of bytes of output data
DP standard protocol - number of bytes of input data
Reserved - cleared on power up
Description
No error
No user power
Reserved
LSB
S1 S0
DP communication not initiated since power on
Configuration/parameterization error detected
Currently in data exchange mode
Dropped out of data exchange mode
S7-200 Specifications
A-59