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95
Allocated CIO Area Words
Section 4-2
4-2-6
Slave Status (Word n+7)
The Slave Status word collects all the information on the slave stations allo-
cated to the Unit Master. It summarizes the slave information of the Slave
Data_Exchange Active flags, see
4-2-8 Slave Data_Exchange Active Flags
) and the Slave New-Diagnostics flags, see
Slave New Diagnostics Flags (Word n+17 to Word n+24)
Word n+7 [n = CIO 1,500 + (25 x unit number)]
4-2-7
Actual Bus Cycle Time (Word n+8)
The actual bus cycle time word indicates the current bus cycle time expressed
in BCD in 0.1 ms units. The maximum value is, therefore, 999.9 ms. Values
larger than 999.9 ms are set at 9999.
15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
Word n+7
Slaves in data exchange
Slave diagnostics received
Bit
Name
Status
Controlled
by
Unit operation
00
All slaves in
Data_Exchange
mode
ON
Unit
All slave stations, which are allocated to the PROFIBUS-DP Master
Unit are in Data_Exchange with the PROFIBUS-DP Master Unit. All
slaves which are in Data exchange are indicated in CIO Word n+9 to
n+16, see
4-2-8 Slave Data_Exchange Active Flags (Word n+9 to Word
OFF
Unit
When turned OFF, this bit indicates that at least one slave station is not
in Data_Exchange with the PROFIBUS-DP Master Unit.
01
to
03
Reserved by sys-
tem
---
---
These bits are reserved for future use and are always set to OFF by the
Unit.
04
New slave diagnos-
tics received
ON
Unit
At least one of the slave stations, allocated to the PROFIBUS-DP Mas-
ter Unit indicates that new Diagnostics data is available. The slaves
which indicates this data are indicated in CIO Word n+17 to n+19, see
4-2-9 Slave New Diagnostics Flags (Word n+17 to Word n+24).
OFF
Unit
When turned OFF, this bit indicates that none of the slave station has
returned new diagnostics messages, since the last time the flags were
cleared.
05
to
15
Reserved by sys-
tem
---
---
These bits are reserved for future use and are always set to OFF by the
Unit.
Содержание SYSMAC CJ1W-PRM21
Страница 2: ...iv...
Страница 36: ...22 Basic Operating Procedure Section 1 5...
Страница 52: ...38 Defining PROFIBUS DP in the Software Section 2 5...
Страница 112: ...98 Allocated CIO Area Words Section 4 2...
Страница 122: ...108 Command Response Reference Section 5 2...
Страница 160: ...146 Replacing the Unit Section 7 8...
Страница 174: ...160 Appendix...
Страница 180: ...166 I O Data Conversions Appendix D...
Страница 186: ...172 Configurator Error and Warning Messages Appendix E...
Страница 187: ...173 Index...
Страница 188: ...174 Index...
Страница 190: ...176 Revision History...