MVI46-PDPS ♦ SLC Platform
Reference
Profibus DP Slave Communication Module
User Manual
ProSoft Technology, Inc.
Page 45 of 53
Read Block
These blocks of data transfer information from the module to the SLC processor, and
transfer output (control) data sent to the module from the remote master unit. The
following table describes the structure of the input image.
M1 File
Word
Type
Description
0
PROFIBUS
First word of PROFIBUS data received from master.
…
121
PROFIBUS
Last potential word to be received from master
122 to 129
Reserved
Reserved for future use
130
Status
Program scan counter
131
Status
Block read counter
132
Status
Block write counter
133
Status
Block parse counter
134
Status
Block error counter
135
Status
PROFIBUS enable state
136
Status
PROFIBUS state
137
Status
PROFIBUS status register[0]
138
Status
PROFIBUS status register[1]
139
Status
Diagnostic state
140
Status
PROFIBUS input counter
141
Status
PROFIBUS output counter
142
Status
Reserved
143
Status
Reserved
144
Status
Reserved
145
Status
Reserved
146
Status
Reserved
147
Status
Reserved
148
Status
Last global command
149 to 199
Reserved
Reserved for future use
The Read Block, in addition to moving user data, the block also contains status data for
the module. This last set of data is transferred with each new block of data and can be
used for module diagnostics.