Chapter 6 CP 240 - M-Bus
Manual VIPA System 200V
6-12
HB97E - CP - Rev. 11/30
The following examples show how a telegram is build-up from predefined
data and how the received telegram is stored in the data block.
Assignment via DB
Telegram via M-Bus
BBh Baud
rate
10h Start
7Bh C
field
→
7Bh C field: REQ_UD2
FEh A field
FEh A field: PtP Broadcast
79h Check sum of C and A field
16h
Stop
ANZ for handling block FC0: 3
Please take care to prefix one byte to every M-Bus telegram that specifies
the baud rate to use.
Telegram via M-Bus
storage in DB:
68h 68h
Start
00h Response
00h L
field
→
08h C field: RSP_UD
03
L field
02h A field: address 02h
68h
68h Start
72h CI field: response variable length
08h
C field: RSP_UD
01h
02h
A field: address 02h
02h Data field
72h
CI field: resp. variable
03h
01h
02h Data
field
03h
75h
Check sum of
C,A,CI, data
16h Stop
ANZ for handling block FC1: 4
At error-free reception, Byte 0 of the receive-DB contains the value 00h. A
value <> 00h indicates an error.
Here the bits have the following allocation:
Bit 0: set if no answer was received
Bit 1: set in the case of short-circuit at the bus
Bit 2... 7: reserved
Examples
Send data
Baud rate
Receive data
Response byte
Содержание CP 240 RS232
Страница 1: ...Manual VIPA System 200V CP Order No VIPA HB97E_CP Rev 11 30...
Страница 2: ...L...
Страница 14: ...Chapter 1 Basics Manual VIPA System 200V 1 6 HB97E CP Rev 11 30...
Страница 126: ...Chapter 5 CP 240 EnOcean Manual VIPA System 200V 5 32 HB97E CP Rev 11 30...
Страница 144: ...Chapter 6 CP 240 M Bus Manual VIPA System 200V 6 18 HB97E CP Rev 11 30...
Страница 148: ...Index Manual VIPA System 200V A 4 HB97E CP Rev 11 30 M Stich...