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Contents ILX69-PBM CompactLogix or MicroLogix Platform
User Manual PROFIBUS Master Communication Module
Page 80 of 124 ProSoft Technology, Inc.
February 4, 2015
Global Control Registers
Bytes 8 to 11 contain the Global Control Registers. A Global Control request makes it
possible to send commands to single or multiple slaves. This request makes it possible to do
Sync and Freeze functions.
Note: The same Global Control function can be also executed by CIP
message functionality described later in this manual.
Byte
Offset
Data
Type
Structure
Member
Description
8
SINT
SLA
Slave Address
9
SINT
CC
Control Command, see table below
10
SINT
GS
Group Select, see table below
11
SINT
Reserved
Reserved
Slave Address
The SLA parameter allows the user to set the address of the slave in which the Global
Control command is to be sent. The value of 127 is a special global broadcast address, all
slaves are affected by this command at the same time.
Control Command
The CC parameter determines the function to be executed using the Global Control
Command.
Bit
Offset
Data
Type
Structure
Member
Description
0
BOOL
Reserved
Reserved
1
BOOL
Clear_data
Clear output data
2
BOOL
UnFreeze
Unfreeze input data
3
BOOL
Freeze
Freeze input data
4
BOOL
Unsync
Neutralize the sync command or unsync
5
BOOL
Sync
Freeze output data, until sync command is neutralized
6
BOOL
Reserved
Reserved
7
BOOL
Reserved
Reserved
Combination of the Unsync/Sync and Unfreeze/Freeze bits:
Bit 2 or 4
Bit 3 or 5
Description
0
0
No function
0
1
Function (sync or freeze) is active
1
0
Function (unsync or unfreeze) is active
1
1
Function (unsync or unfreeze) is active
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