6
Device Control
Festo – GDCP-CMMP-M3/-M0-C-CO-EN – 1510b – English
157
Bit
Value
Function
0
0001
h
Control of the status transitions.
(These bits are evaluated together)
1
0002
h
2
0004
h
3
0008
h
4
0010
h
new_set_point/start_homing_operation/enable_ip_mode
5
0020
h
change_set_immediately
6
0040
h
absolute/relative
7
0080
h
reset_fault
8
0100
h
halt
9
0200
h
reserved – set to 0
10
0400
h
reserved – set to 0
11
0800
h
reserved – set to 0
12
1000
h
reserved – set to 0
13
2000
h
reserved – set to 0
14
4000
h
reserved – set to 0
15
8000
h
reserved – set to 0
Tab. 6.3
Bit assignment of the controlword
As already comprehensively described, status transitions can be carried out with the bits 0 … 3. The
commands necessary for this are presented again here in an overview. The Fault Reset command is
generated by bit 7 through a positive edge change (from 0 to 1).
Command:
Bit 7
Bit 3
Bit 2
Bit 1
Bit 0
0008
h
0008
h
0004
h
00
0
2
h
0001
h
Shutdown
x
x
1
1
0
Switch On
x
x
1
1
1
Disable Voltage
x
x
x
0
x
Quick Stop
x
x
0
1
x
Disable Operation
x
0
1
1
1
Enable Operation
x
1
1
1
1
Fault Reset
0
1
x
x
x
x
Tab. 6.4
Overview of all commands (x = not relevant)
As some status modifications require a certain amount of time, all status modifications
triggered via the controlword must be read back via the statusword. Only when the re
quested status can also be read in the statusword may a further command be written via
the controlword.