90
Allocated CIO Area Words
Section 4-2
Freeze mode
The User can set the Freeze and Unfreeze bits at the same time, and both will
be transmitted to the targeted slave stations at the same time but the resulting
action at the slave station is defined in the PROFIBUS standards.
Sync mode
The User can set the Sync and Unsync bits at the same time, and both will be
transmitted to the targeted slave stations at the same time, but the resulting
action at the slave station is defined in the PROFIBUS standards.
4-2-3
Unit Status (Word n+4)
The Unit status word contains all the status and error flags concerning the
Unit itself, as well as error flags, which indicate the presence of error flags in
the Master and Slave Status Words. All bits are controlled by the Unit.
13
Sync
ON
User
The Sync command forces the slave stations in to the Sync mode. In
this mode the slave station will not update its outputs and continues to
use the output data received before the Sync command.
If the slave station is already in the Sync mode, a new Sync command
will force the slave to update its outputs only once, with the most recent
output data received from the Master.
OFF
User
The bit set to OFF indicates that the Sync command will not be trans-
ferred to the slave stations.
14
to
15
Reserved by sys-
tem
---
---
These bits are reserved by the system and will ignored by the Unit.
Bit
Name
Status
Controlled
by
Unit operation
Bit 10
Bit 11
Resulting action at slave
OFF
OFF
No change in function
OFF
ON
Slave station will be in Freeze mode
ON
OFF
Slave station will be in Unfreeze mode
ON
ON
Slave station will be in Unfreeze mode
Bit 12
Bit 13
Resulting action at slave
OFF
OFF
No change in function
OFF
ON
Slave station will be in Sync mode
ON
OFF
Slave station will be in Unsync mode
ON
ON
Slave station will be in Unsync mode
15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
Word n+4
Unit error flag
Master error flag
Error log contains new errors
Parameter transfer in progress
Local parameter storage error
Local parameter load error
File read error
Error log storage error
Summary of Contents for SYSMAC CJ1W-PRM21
Page 2: ...iv...
Page 36: ...22 Basic Operating Procedure Section 1 5...
Page 52: ...38 Defining PROFIBUS DP in the Software Section 2 5...
Page 112: ...98 Allocated CIO Area Words Section 4 2...
Page 122: ...108 Command Response Reference Section 5 2...
Page 160: ...146 Replacing the Unit Section 7 8...
Page 174: ...160 Appendix...
Page 180: ...166 I O Data Conversions Appendix D...
Page 186: ...172 Configurator Error and Warning Messages Appendix E...
Page 187: ...173 Index...
Page 188: ...174 Index...
Page 190: ...176 Revision History...
