Elvaco CMeX50 - Choose Type of STATUS Byte in Telegram from Virtualized Slave on Wired M-Bus; Master to Slave; Slave to Master

CMeX50 Users Manual English
CMeX50 Users Manual English
page | 59 (89)
2017-10-13
Document id: 1090055 Version 1.5
0x00 = Ok (no error)
17-18
0x0000
Signature, 16 bit binary
Optional CMeX50 information depending DIF/VIF mode, see section 6.1.4 and 6.2.7
19
0x0d
DIF Variable data length
20
0xfd
VIF Extension table FD
21
0x3b
VIFE Wireless M-Bus container
22
0xnn
Length of container
23..N
Wireless M-Bus slave complete telegram.
Starting with L-Field. CRC fields are left out.
N+1
0x0F or 0x1F
End of telegram.
More data available: 0x1F
No more data available: 0x0F
N+2
0xnn
Checksum
N+3
0x16
Stop character
6.3.3 Choose type of STATUS byte in telegram from virtualized slave on wired M-Bus
6.3.3.1 Master to slave
Byte index
Data
Description
0
0x68
Start character 1
1
0xnn
L-field 1
2
0xnn
L-field 2
3
0x68
Start character 2
4
0x43 | 0x53 | 0x63 | 0x73
C-field = SND-UD
5
0xnn
A-field = primary address, e.g. 0xFB = 251
6
0x51
CI-field = Master to slave data transmission
7-13 (14)
0x01 0x7C 0x03 0x61 0x74
0x73 0xnn
OR
0x01 0xFC 0x03 0x61 0x74
0x73 0x00 0xnn
0xnn = setting for STATUS byte in telegram from
virtualized meters:
0x00 = STATUS is always 0x00
0x01 = STATUS is copied from the corresponding
wireless meter’s STATUS byte if available (assuming
that the wireless telegram has long or short
application header) otherwise it is set to 0x00
(0x61 0x74 0x73 = 'sta' backwards)
14 (15)
0xnn
Checksum
15 (16)
0x16
Stop character
6.3.3.2 Slave to master
Byte index
Data
Description