5 communication set- ting, 1 vcr setting – Yokogawa RotaMASS 3-Series User Manual

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5. CONFIGUrATION

5-4

IM 01R04B05-00E-E 3rd edition July 30, 2010 -00

In each RotaMaSS, the PD tag and node ad-
dress are set to “Ft1004” and 246 (hexadecimal
F6), respectively, before shipment from the factory
unless otherwise specified. to change only the
node address, clear the address once and then
set a new node address. to set the PD tag, first
clear the node address and clear the PD tag, then
set the PD tag and node address again.Devices
whose node address was cleared will await at the
default address (randomly chosen from a range of
248 to 251, or from hexadecimal F8 to FB). at the
same time, it is necessary to specify the device ID
in order to correctly specify the device. the device
ID of the RotaMaSS is 594543000Dxxxxxxxx.
(the xxxxxxxx at the end of the above device ID
is a total of 8 alphanumeric characters.)

5.5 Communication Set-

ting

to set the communication function, it is necessary
to change the database residing in SM (System
Management)-VFD.

5.5.1 VCr Setting

Set VCR (Virtual Communication Relationship),
which specifies the called party for communication
and resources. Each RotaMaSS has 33

VCRs

whose application can be changed, except for the
first VCR, which is used for management.

Each RotaMaSS has VCRs of four types:

Server (QuB) VCR
a server responds to requests from a host.

this communication needs data exchange.
this type of communication is called QuB
(Queued user-triggered Bidirectional) VCR.

Source (Quu) VCR
a source multicasts alarms or trends to other

devices. this type of communication is called
Quu (Queued user-triggered unidirectional)
VCR.

Publisher (Bnu) VCR
a publisher multicasts outputs of the aI blocks,

It blocks, and PID block to other function
blocks. this type of communication is called
Bnu (Buffered network-triggered unidirection-
al) VCR.

Subscriber (Bnu) VCR
a subscriber receives output of another func-

tion block(s) by PID block.

Each VCR has the parameters listed in table 5.4.
Parameters must be changed together for each

VCR because modification for each parameter
may cause a contradiction.
Table 5.4

VCr Static Entry

T0504-1.EPS

ub-

index

arameter

escription

FasArTypeAndRole

Indicates the type and role of
communication (VCR). The
following 4 types are used
for the Rotamass.
0x32: Server (Responds to

requests from host.)

0x44: Source (Transmits

alarm or trend.)

0x66: Publisher (Sends AI,

DI block output to
other blocks.)

0x76: Subscriber (Receives

output of other blocks
by PID block.)

FasDllLocalAddr

Sets the local address to
specify a VCR in the
Rotamass. A range of 20 to
F7 in hexadecimal.

FasDllConfigured
RemoteAddr

Sets the node address of the
called party for
communication and the
address (DLSAP or DLCEP)
used to specify VCR in that
address. For DLSAP or
DLCEP, a range of 20 to F7
in hexadecimal is used.
Addresses in Subindex 2
and 3 need to be set to the
same contents of the VCR
as the called party (local and
remote are reversed).

FasDllSDAP

Specifies the quality of
communication. Usually, one
of the following types is set.
0x2B: Server
0x01: Source (Alert)
0x03: Source (Trend)
0x91: Publisher/Subscriber

FasDllMaxConfirm
DelayOnConnect

To establish connection for
communication, a maximum
wait time for the called
party's response is set in
ms. Typical value is 60
secounds (60000).

FasDllMaxConfirm
DelayOnData

For request of data, a
maximum wait time for the
called party's response is
set in ms. Typical value is
60 secounds (60000).

FasDllMaxDlsduSize

Specifies maximum DL
Service Data unit Size
(DLSDU). Set 256 for Server
and Trend VCR, and 64 for
other VCRs.

FasDllResidual
ActivitySupported

Specifies whether
connection is monitored. Set
TRUE (0xff) for Server. This
parameter is not used for
other communication.

FasDllTimelinessClass Not used for the Rotamass

FasDllPublisherTime
WindowSize

Not used for the Rotamass.

FasDllPublisher
SynchronizaingDlcep

Not used for the Rotamass.