Azbil MagneW Plus+ MGG14C, Руководство пользователя

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4-4
Checking the operation of Fieldbus
Check to see if the device operates properly with Fieldbus.
Prior to operating Fieldbus, the DD file (device description) and the CF file (capability) of
the device need to be copied to the host.
Download the DD file and CF file from the official website of the FieldComm Group.
Operation of Fieldbus requires the following settings in the host.
Ensure that PD_TAG and NODE_ADRS can be set up by configuring the following
settings.
1) Network parameter settings for link active scheduler (LAS)
Symbol Parameter name Description and setting value
V(ST) Slot time Set a value of 5 or greater.
V(MID) Gap between minimum frames Set a value of 10 or greater.
V(MRD) Maximum response delay time
Set the value so that V(MRD)
V(ST) is 20 or greater.
V(FUN)
The number of the first unpolled
node
Set the value immediately next to
the address used by the host. Set
a value of 12 or greater in 16-bit
representation.
V(NUN) Total number of unpolled nodes
The number represents the range
of unused addresses. Set the value
of the minimum address used by
the device in the work site minus
the value of V(FUN).
1) Checking PD_TAG (physical device tag) and address
Parameter name Parameter name Setting value
Data when shipped
from the factory
PD_TAG Physical device tag
Up to 32 ASCII
characters
Specified by customers
NODE_ADRS Node address
Set the minimum
address of the BASIC
device in hexadecimal
notation and F7 or less
Hexadecimal notation
and F8
The same address setting as another device cannot be selected for NODE_ADRS. (Such an
entry is changed into the default address [0xF8–0xFB])
Assign a different address for each unit.