![background image](http://html1.mh-extra.com/html/omron/sysmac-cj1w-prm21/sysmac-cj1w-prm21_operation-manual_743083103.webp)
89
Allocated CIO Area Words
Section 4-2
Word n+2 [n = CIO 1,500 + (25 x unit number)]
15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
Word n+2
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 8
Group select:
Unfreeze
Freeze
Unsync
Sync
Bit
Name
Status
Controlled
by
Unit operation
00
to
07
Group address
ON
User
Each bit in this range represents one of up to 8 groups of slaves. Bits 00
to Bit 07 will be included within the Global_Control message as group
address indicators.
If a Group number bit is set, the slave stations assigned to this group
number will process the Global_Control command.
OFF
User
If a Group number bit is not set, the slave stations assigned to this
group number will ignore the Global_Control command, except if none
of the Group address bits are set, i.e. Bit 00 to Bit 07 are all set to OFF.
This selection defines a Broadcast command, causing all slave stations
allocated to the PROFIBUS-DP Master Unit to process the Global_
Control command.
08
to
09
Reserved by sys-
tem
---
---
These bits are reserved by the system and will ignored by the Unit.
10
Unfreeze
ON
User
If the Unfreeze bit is set, the Unfreeze command will be send to the tar-
geted slave stations.
The Unfreeze command releases the targeted slave stations from the
Freeze mode (see below).
OFF
User
The bit set to OFF indicates that the Unfreeze command will not be
transferred to the slave stations.
11
Freeze
ON
User
The Freeze command forces the slave stations in to the Freeze mode.
In this mode a slave station will not update its inputs to the Master and
continue to transmit the input data acquired before the Freeze com-
mand.
If the slave station is already in the Freeze mode, a new Freeze com-
mand will force the slave to update its inputs only once and continue to
transmit the new input data to the Master.
OFF
User
The bit set to OFF indicates that the Freeze command will not be trans-
ferred to the slave stations.
12
Unsync
ON
User
If the Unsync bit is set, the Unsync command will be send to the tar-
geted slave stations.
The Unsync command releases the targeted slave stations from the
Sync mode (see below).
OFF
User
The bit set to OFF indicates that the Unsync command will not be trans-
ferred to the slave stations.
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...