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51. Incompatibility of PCD2 /PCD3.F27x(0) and "Hydrometer M-Bus Receiver 868"

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    The M-Bus communication between the "Hydrometer M-Bus Receiver 868" (alternatively called "MB-Receiver") and the PCD2.F2710 has been analyzed and it was found that the device does not conform to the M-Bus specification (SN EN 13757-2). Therefore it can not be used together with the PCD2/3.F27x(0).

52. PCD3.F27x and PCD2.F27xx M-Bus is not always short cut protected!

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    Those M-Bus cards have a short-cut protection on the bus but when the CPU isn't anymore power supplied and the F27x(x) card still has 24 V supply there is no short cut protection anymore!

53. How to start and trouble-shoot M-Bus communication?

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    When connecting M-Bus devices to a PCD there are some points to be considered already during planning and commissioning. This FAQ refers to a list of points to check when realizing and trouble-shooting M-Bus communication.

54. Link to Engiby FBox libraries "Modbus 2" and "M-Bus" version 2.6.xxx

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    As described in FAQ 101479 the version 2.6.xxx of the Engiby libraries is required for PG5 2.0.150 (PG5 2.0 SP1). This FAQ contains the link to download the libraries (in order to have a fast solution

55. Does M-Bus need a Full RS 232 interface?

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    No, on the PCD a reduced RS 232 can be used (PCD7.F520 / one part of PCD7.F522). However, some communication partners will need full RS 232. In this case you can maybe handle it with a bridge or you h

56. Can M-Bus be implemented on the xx7 series?

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57. When a new user key is created, is it necessary to get a new licence number from Engiby for Modbus M-Bus etc..?

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    If a existing customer buy a new PG5 library (e.g. the S-Web Editor Advanced) and he had already a licence number for a Modbus library, does he need a new licence number from Engiby?

58. How many M-Bus devices can I connect to one single PCD?

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    Principally, there's no limitations set by the driver itself ...

59. What does the error message "Too many data" mean?

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    The M-Bus communication is working but the M-Bus Master FBox indicates an error on the output "Err" with code 36: "Too many data".

60. Engiby Switzerland

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    Communication drivers (M-Bus, Modbus...), FBoxes, Data Logging with remote communication