Programming examples
68
FTC470XDP_D00111_00_M_XXEN/02.2015
7.6 Control commands for use in the BMS Slave mode
For carrying out the control commands below, the FTC470XDP is not required to take over the Mas-
ter function.
The PROFIBUS Master instructs a random Master in a BMS network to start insulation fault location
in an EDS system. FTC470XDP is in Slave mode during the whole process.
PROFIBUS Master output data:
Insulation fault location is being started and acknowledged.
PROFIBUS Master input data:
The PROFIBUS Master instructs a random Master in a BMS network to start insulation fault location
in an EDS system in POSITION mode. The value to be requested is available at channel 3 with BMS
address 7. FTC470XDP is in the Slave mode during the whole process.
PROFIBUS Master output data:
Insulation fault location in POSITION mode is being started and acknowledged.
PROFIBUS Master input data:
In this example the "value" results from linking High-Byte and Low-Byte (byte 7+8).
* The value of the whole "address" is formed as follows:
"Address" = (BMS address x 100) + channel number.
As shown in the example above, the result of linking address = 7 and channel = 3 is 703.
703 = 2BF hex
Byte 7 = 002 decimal
Byte 8 = 191 decimal
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
Byte 7
Byte 8
Consecutive
PROFIBUS ID
No.
always
"0"
BMS address of
the addressed
device
BMS channel
number
BMS
Com-
mand
BMS data
type
High byte
BMS data
value
Low byte
BMS data
value
18
0
1
0
115
3
0
0
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
Byte 7
Byte 8
18
0
1
0
115
3
0
0
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
Byte 7
Byte 8
Consecutive
PROFIBUS ID
No.
always
"0"
BMS address of
the addressed
device
BMS channel
number
BMS
Com-
mand
BMS data
type
High byte
BMS data
value
Low byte
BMS data
value
19
0
1
0
115
5
*
2
*
191
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
Byte 7
Byte 8
19
0
1
0
115
5
*
2
*
191
