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Modbus TCP server
35
CP9xx-Kit_D00399_00_M_XXEN/07.2019
5.2.6
Modbus control commands
Commands can be sent to BMS devices by an external application (e.g. visualisation software).
This functionality can be activated or deactivated via the web user interface.
Command structure
Writing to register:
To write use function code 0x10 "Write Multiple registers".
Start address: 0xFC00
Number: 4 registers
Always set all four registers (word 0xFC00…0xFC03) at the same time. This statement also applies if
individual registers remain unchanged.
If no other subsystem is available, enter value"1" in this register.
If a BMS channel number is not required, enter value "0" (zero) in this register.
Reading out register:
Use function code 0x04 "Read Input Registers" to read.
Possible response in "Status" register:
1011 (0x3F3)
Register address (unit not displayed)
1010 (0x3F2)
Time
1009 (0x3F1)
Factor multiplication [*]
1008 (0x3F0)
Factor division [/]
1007 (0x3EF)
Baud rate
Write
Read
Word 0xFC00
0xFC01
0xFC02
0xFC03
0xFC04
External
BMS bus address
Internal
BMS bus address
BMS channel
Command
Status
You can also generate control commands in the menu "Tools" > "Modbus" >
"Modbus control commands".
0
Busy
Processing command.
1
Error
An error has occurred.
2
Ready
Command has been processed successfully.
Value
Description of parameters:
Содержание B95061094
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Страница 14: ...Product description 14 CP9xx Kit_D00399_00_M_XXEN 07 2019...
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