User Manual

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Building Technologies M-bus System CE1P5361en
HVAC Products 8 Addendum 08.02.2007
The number of M-bus devices also includes all devices for the Siemeca™ AMR
system that are connected to the M-bus via the WTX16 or WTT16 radio nodes:
Other radio nodes, MEGATRON
®
2, VOLUTRON
®
2, WHE26 or AEW36.2
 Cancel device list: This setting is only available with the OZW10. All entries relat-
ing to the devices previously found will be canceled
 Update device data: The central unit reads out all data of the devices found
The search run made by the central units is as follows:
1. The search starts with the highest selected Baud rate and ends with the lowest. If a
device responds to several Baud rates, the central unit will from now on use exclu-
sively the highest Baud rate for addressing that device.
2. When searching for devices, secondary addressing is used first, then primary ad-
dressing. If a device with a primary address was already found with secondary ad-
dressing, the respective primary address will be omitted with the primary search
run. From now on, the device will be addressed with the primary address.
 The OZW10 is parameterized as follows:
 Baud rates on the M-bus: 300 and 2,400
 Type of addressing on the M-bus: Primary and secondary addressing
 The central unit makes the search run on the M-bus as follows:
1.Search run at 2,400 Baud by means of secondary addressing
2.Search run at 2,400 Baud by means of primary addressing
3.Search run at 300 Baud by means of secondary addressing
4.Search run at 300 Baud by means of primary addressing
M-bus device settings OZW10 device list
No. Baud rate M-bus address
(primary address)
Customer number
(part of secondary
address)
Device
number
Baud
rate
A 2,400 3 105 4 2,400
B 300 0 100 7 300
C 300 1
Device without sec-
ondary addressing
9 300
D
Auto 9,600 /
2,400 / 300
0 104 3 2,400
E 2,400 2
Device without sec-
ondary addressing
5 2,400
F
Auto 2,400 /
300
5
Device without sec-
ondary addressing
6 2,400
G 2,400 4 101 1 2,400
H
Auto 2,400 /
300
0 102 2 2,400
I 300 67 106 8 300
J 9,600 9 103 Not found None
Example