Burkert Type 8644 - Manual (Page 66)

62 - 8644/phoenix
S
YSTEM
D
ESCRIPTION
In this case, parameterization is the setting of options on an E/A module as well as the pre-setting of
failsafe values. In the case of an analogue input module, for example, the measuring range setting is: 0 ...
20 mA or 4 ... 20 mA. In the case of an analogue output module, a security value of x V or Hold can be set.
The DPV1 field bus module offers further settings opportunities, in addition to the ability to parametrize E/A
modules.
Parameterization possibilities and limits
The parameterization of E/A modules is extremely comprehensive. It ranges from the setting of the
measuring range and filter depths on analouge inputs, through the selection of temperature sensors to
security values on digital and analouge outputs.
Modules, such as counter and absolute value sensor terminals, provide a variety of settings possibilities
which can be adapted highly individually to the application. To this end, parameterization from the
application via function blocks is provided for.
Typical parameterization is effected via the C1 on start-up of the slave. Alternatively, parameterization is
also possible via acyclical services. This procedure can be of interest, for example, in operation when pre-
setting new safety values.
General format of the parameter telegram
Byte 1 ... 7 Norm DP
Byte 8 ... 10 Norm DPV1
Byte 11 DPV1 field bus node parameter byte
E/A module
Byte 1 Parameter byte Security value / Configuration value / PCP
From Byte 2 Configuration block
Security value
PCP
Generally it is sufficient to import the GSD and update the device directory. Most HW configuration tools
provide a dialouge when a parametrizable module is selected, allowing you to select all adjustable
parameters easily. The parameter telegram is composed in the backround.
NOTE Only undertake parameterization via parameter telegram during start-up.
Parameterization