Bender FTC470XDP, Руководство пользователя

Страница: 36 / 80

Function
36 FTC470XDP_D00111_00_M_XXEN/02.2015
6.6 Taking over or returning the Master function
Certain commands in a BMS network can only be carried out when the FTC470XDP takes over the
Master function. This is required for the parameterization of BMS devices, for example.
When BMS address 1 is continuously assigned to the FTC470XDP , taking over of the Master function
is not necessary.
6.6.1 Taking over the Master function
Writing to FTC470XDP (= output of the PROFIBUS Master):
Table 6.11: Master request: taking over of the Master function by FTC470XDP
Reading from FTC470XDP (= input data of the PROFIBUS Master):
Table 6.12: FTC reply to: taking over of the Master function by FTC470XDP
Taking over of the Master function is not required for requesting alarm and operating messages,
measuring values and in case of control functions for EDS systems.
6.6.2 Returning the Master function
Writing to FTC470XDP (= output of the PROFIBUS Master):
Table 6.13: Master request: Master return by FTC470XDP
Reading from FTC470XDP (= input data of the PROFIBUS Master):
Table 6.14: FTC reply to: Master return by FTC470XDP
The FTC470XDP must take over the Master function in case of parameter re-
quests and new parameter settings!
Take into account that the Master function must be returned by the FTC470XDP
after taking over the Master function and the subsequent parameterization.
Function
Devices
Channel
No.
BMS
command
Data
Type Data
Value
Command to FTC470XDP to take over the Master func-
tion in the BMS network temporarily. After carrying out
this command, the FTC470XDP is ready to output fur-
ther commands to the BMS network.
FTC470X.. 0 112 2 0
FTC470XDP has taken over the Master function. The tak-
ing over is acknowledged by the old Master by answer-
ing already as a Slave.
0 112 2 0
Function
Devices
Channel
No.
BMS
comma
nd
Data
Type Data
Value
Command to FTC470XDP to return the Master function
in the BMS network. After carrying out this command,
the FTC470XDP again has the status of a Slave in the
BMS network .
FTC470X.. 0 112 101 0
FTC470XDP has taken over the Slave function 0 112 101 0