User Manual

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Building Technologies M-bus System CE1P5361en
HVAC Products 8 Addendum 08.02.2007
8.6 Data of M-bus devices available on ACS7…
ACS7… supports far more than 100 devices and versions with own device descriptions.
The list of supported devices is constantly updated. In this document, it is not possible
to give all information about the available data of the M-bus device. Information about
the individual types of devices and versions can be provided on request.
8.7 Error messages from M-bus devices and
alarm messages delivered by the OZW…
The following sections describe the generation of alarm messages by the central units:
 OZW10: 2.2.3 "Function"
 OZW111: 2.3.3 "Function"
The central units signal errors based on error codes 01 through 99. Each M-bus device
has its own error codes or error displays which are mapped on the error codes of the
central unit, depending on the type of device. The following sections describe how the
errors of the M-bus devices are mapped on those of the central unit. The information
given applies to the OZW10 of V4.0 or higher and the OZW111.
8.7.1 Heat meters SONOHEAT
®
2WR4 / 2WR5
Error code central unit Error text
04 Error flow acquisition, sensor error F0 Flow cannot be measured: Air in the
measuring section / pipe, vent pipe
(as supplied)
F1 Open-circuit flow sensor
F2 Open-circuit return sensor
F5 Short-circuit flow sensor
F6 Short-circuit return sensor
F9 ASIC error
34 Communication breakdown M-bus --- Current error of device not available
47 Severe error, sensor error, electro-
nics error
F3 Electronics for temperature evalua-
tion faulty
F4 Battery exhausted, replace
F7 Fault of internal storage operation
F8 Error F1, F2, F5 or F6 for more than
8 hours pending, detection of fraud
attempts. No more measurements
made
8.7.2 Heat meters SONOGYR
®
energy WSF, WSG, WSJ
The SONOGYR
®
energy heat meter shows severe errors on the display’s top level
"Actual". Minor errors are only displayed on the "Info" level.
Error code central unit Error code device
02 Undervoltage F:2 Undervoltage: Check mains voltage
or replace battery module
34 Communication breakdown M-bus --- Current error of device not available
40 Severe error
F:4 Severe functional error was present
F:43 General hardware error: Device
defective
F:64 Open-circuit flow temperature
measuring circuit
F:74 Short-circuit flow temperature
measuring circuit