www.balluff.com
17
7
Startup
7.3.
Setting
parameters
For the BNI PBS modules the parameter telegram is 19 bytes long. The first 7 bytes are
defined by the Profibus standard EN 50170. The following 12 bytes are user parameters.
Norm-specific
parameters
Structure of the norm-specific parameters (bytes 0 to 6, see below for coding):
Byte
Bit
7
6
5
4
3
2
1
0
0
Station status
1
WD_Fact_1
2
WD_Fact_2
3
MinTSDR
4
Indent_Number_High
5
Indent_Number_Low
6
Group_Intend
Note, Tip!
When coding the parameters:1 = activated, 0 = deactivated.
Station status
Byte 0, station status:
Bit
Parameter
Meaning
0 ... 2
-
reserved
3
WD_On
Activated/deactivate watchdog (access monitoring in the Device)
4
Freeze_req Operate DP Device in freeze mode
5
Sync_req
Operate DP Device in sync mode
6
Lock_req
(see below for coding)
7
Unlock_req
Coding of lock and unlock
:
Lock Unlock
0
0
minTSDR and Device-specific parameters may be overwriten
0
1
Enable DP-Device for other Masters.
1
0
DP-Device blocked for other Masters, all parameters are copied
1
1
DP-Device relesed for other Masters (unlock has priority over lock)
WD_Fact_1 and
WD_Fact_2
Byte 1 and 2, Watchdog factor 1 and 2:
Time until access monitoring in DP-Device expires. After a failure of the DP-Master the
outputs assume the safe state after this time expires.
Timeout (TWD) = 10 ms x WD_Fact_1 x WD_Fact_2.
Times from 10 ms to 650 s can be set.
WD_Fact_1
Byte 1
7
6
5
4
3
2
1
0
0 ... 255 (0x00 ... 0xFF)
WD_Fact_2
Byte 2
7
6
5
4
3
2
1
0
0 ... 255 (0x00 ... 0xFF)
