Bender FTC470XMB, Operating Manual

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Programming examples mode 2
80 TGH1367en/06.2010
8.2 Operating messages
The Modbus RTU Master addresses BMS address 25, the control device PRC487, for informa-
tion about the state of Line 1 (operating message. This information is available at channel 1.
The Modbus RTU Master sends an appropriate command to FTC470XMB
(function 16, output data):
The PRC487 replies that Line 1 is carrying current and is ready for operation (function 3, in-
put data)
*
The answer in byte 8 could also be 210, 211 or 212.
The Modbus RTU Master addresses BMS address 29, the IRDH.... insulation monitoring de-
vice, for information about the actual insulation resistance (operating message). This infor-
mation is available at channel 1 of the IRDH.....
The Modbus RTU Master sends an appropriate command to FTC470XMB
(function 16, output data):
The IRDH.... replies that the value of the actual insulation resistance is 185 kOhm
(function 3, input data)
Word 1 Word 2 Word 3 Word 4 Word 5
H-Byte L-Byte H-Byte L-Byte H-Byte L-Byte H-Byte L-Byte H-Byte L-Byte
always
„0“
Consecutive
Modbus ID
No.
BMS address of
the addressed
device
BMS
channel
No.
always
„0“
BMS
com-
mand
always
„0“
BMS
data
type
BMS data value
0 7 25 1 0 4 0 0 0
Word 1 Word 2 Word 3 Word 4 Word 5
0 7 25 1 0 4 0 13 *201
Word 1 Word 2 Word 3 Word 4 Word 5
H-Byte L-Byte H-Byte L-Byte H-Byte L-Byte H-Byte L-Byte H-Byte L-Byte
always
„0“
Consecutive
Modbus ID
No.
BMS address of
the addressed
device
BMS
channel
No.
always
„0“
BMS
com-
mand
always
„0“
BMS
data
type
BMS data value
0 8 29 1 0 4 0 0 0
Word 1 Word 2 Word 3 Word 4 Word 5
0 8 29 1 0 4 0 61 185