User Manual

Configuring MK8000
4
Setting the Multi-state value data format
60
Building Technologies A6V10062407_a_en
Fire Safety & Security Products 30.06.2013
Setting the group name and full access rights for an FS20 unit
4.6 Setting the Multi-state value data format
The OPC data item provided by MK8000 (multi-state item) can assume two alternative
structures:
Threshold mode: The item value will be a number represented in 2 bytes; the
possible states will correspond to specific values.
Bit-mask mode: A 4-byte value will map the possible states on 32 bits, with each bit
corresponding to an elementary state.
As shown in the following figure, the MK8000 OPC server node includes in the Node
tab the option for setting one of the multi-state modes. For more information on OPC
data formats, see the document
004971 MK8000 OPC Server Interface Specifications
.
Note: the field MK8000 and MM8000 selection can only be used in an MM8000
system, which can switch the project type (refer to
MM8000 ICC
manual –
A6V10062413).
Setting the multi-state data format