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W-MBus Modems/Receiver/Repeater - Guide utilisateur / User guide version V1.8.2
9.3.9 CRC: Cyclic Redundancy Check
The CRC is computed over the information from the previous block, with the following polynomial formula: x16+x13+x12+x11+x10+x8+x6+x
5+x2+1 (initial value = 0)
Please note: The repeater or Multiple addressing roles (CI = 0x81) are not covered with this summary. Please refer to EN13757-4:2005 stan-
dard.
FR
9.4. Serial ports wiring
9.4.1 RS232 serial port
EN
9.4.2 RS485 serial port
10.
Version history
User guide version
V1.8.2
V1.8.1
V1.8
V1.7
V1.6
V1.5.1
V1.5
V1.3
V1.2
V1.1
V1.0
Contents
Graphical charter
Update Déclaration of conformity
Update Déclaration of conformity
Electricity meters info
RS485 schematic mofified (see chapter 4.4.2)
Serial port parameters (chapter 4)
Battery repeater specification modified
T1 mode performances updated
Wireless M-Bus frame format for receiver implementation
Repeater and receiver products added
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