YOKOGAWA YF100 User's Manual
Instruction
Manual
Model YF100
Vortex Flowmeter
Fieldbus Communication Protocol
IM 1F2F4-01E
IM 1F2F4-01E
1st Edition
CONTENTS
CONTENTS
1. INTRODUCTION ......................................................................................................1-1
䊏 Regarding This Manual ....................................................................... 1-1
䊏 Safety Precautions............................................................................... 1-2
䊏 Warranty .............................................................................................. 1-3
2. PARTS OF THE AMPLIFIER ................................................................................2-1
3. ABOUT FIELDBUS .................................................................................................3-1
3.1 Outline ................................................................................................. 3-1
3.2 Internal Structure of YF100................................................................. 3-1
3.2.1 System/network Management VFD ............................................. 3-1
3.2.2 Function Block VFD ..................................................................... 3-1
3.3 Correlation of Each Block ................................................................... 3-2
3.4 Wiring System Configuration .............................................................. 3-2
4. FOR NOVICE USERS .............................................................................................4-1
4.1 Connection of Equipment.................................................................... 4-1
4.2 Host Setting......................................................................................... 4-3
4.3 Bus Power ON .................................................................................... 4-3
4.4 Integration of DD................................................................................. 4-4
4.5 Reading the Parameters ..................................................................... 4-4
4.6 Continuous Record of Settings ........................................................... 4-4
4.7 Generation of Alarm............................................................................ 4-4
5. CONFIGURATION ...................................................................................................5-1
5.1 Network Design................................................................................... 5-1
5.2 Network Definition ............................................................................... 5-2
5.3 Definition of Combining Function Blocks ............................................ 5-3
5.4 Setting of Device Tag and Node Address .......................................... 5-4
5.5 Communication Setting ....................................................................... 5-5
5.6 Block Setting ....................................................................................... 5-7
5.6.1 Link Object ................................................................................... 5-7
5.6.2 Trend Object ................................................................................. 5-8
5.6.3 View Object .................................................................................. 5-9
5.6.4 Function Block Parameters ........................................................ 5-13
6. IN-PROCESS OPERATION ...................................................................................6-1
6.1 Mode Transition .................................................................................. 6-1
6.2 Generation of Alarm............................................................................ 6-1
6.2.1 Indication of Alarm ....................................................................... 6-1
6.2.2 Alarms and Events ....................................................................... 6-2
6.3 Simulation Function............................................................................. 6-3
APPENDIX 1. LIST OF PARAMETERS FOR EACH BLOCK OF THE YF100 .A-1
A1.1 Resource Block ....................................................................................A-1
A1.2 Al Function Block .................................................................................. A-3
FD No. IM 1F2F4-01E
1st Edition: Dec. 1998 (YK)
All Rights Reserved, Copyright © 1998, Yokogawa Electric Corporation
A1.3 Transducer Block .................................................................................. A-5
i
APPENDIX 2. APPLICATION, SETTING AND CHANGE OF
BASIC PARAMETERS .......................................................................A-8
A2.1 Applications and Selection of Basic Parameters .................................A-8
A2.2 Setting and Change of Basic Parameters ............................................ A-9
A2.3 Setting the AI Function Block.............................................................A-10
A2.4 Setting the Transducer Block ............................................................. A-12
APPENDIX 3. OPERATION OF EACH PARAMETER IN THE
EVENT OF FAILURE ........................................................................A-13
ii
IM 1F2F4-01E
1. INTRODUCTION
This manual contains a description of the YF100 Vortex Flowmeter Fieldbus
Communication Protocol. The Fieldbus communication protocol is based on the
same sensing features as that of the BRAIN communication protocol, which is
employed as the measurement principle, and is similar to the BRAIN communication protocol in terms of basic performance and operation. This manual describes
only those topics that are required for operation of the Fieldbus communication
protocol and that are not contained in the BRAIN communication protocol instruction manual. Refer to each of the following instruction manuals for topics common
to the BRAIN communication and Fieldbus communication protocols.
Regarding This Manual
• This manual should be passed on to the end user.
• The contents of this manual are subject to change without prior notice.
• All rights reserved. No part of this manual may be reproduced in any form
without Yokogawa’s written permission.
• Yokogawa makes no warranty of any kind with regard to this manual, including,
but not limited to, implied warranty of merchantability and fitness for a particular
purpose.
• If any question arises or errors are found, or if any information is missing from
this manual, please inform the nearest Yokogawa sales office.
• The specifications covered by this manual are limited to those for the standard
type under the specified model number break-down and do not cover custommade instrument.
• Please note that changes in the specifications, construction, or component parts
of the instrument may not immediately be reflected in this manual at the time of
change, provided that postponement of revisions will not cause difficulty to the
user from a functional or performance standpoint.
1. INTRODUCTION
IM 1F2F4-01E
1-1
Safety Precautions
• For the protection and safety of the operator and the instrument or the system
• For the intrinsically safe equipment and explosionproof equipment, in case the
• The following safety symbol marks are used in this Manual:
WARNING
Indicates a potentially hazardous situation which, if not avoided, could result in
death or serious injury.
CAUTION
including the instrument, please be sure to follow the instructions on safety
described in this manual when handling this instrument. In case the instrument is
handled in contradiction to these instructions, Yokogawa does not guarantee
safety.
instrument is not restored to its original condition after any repair or modification
undertaken by the customer, intrinsically safe construction or explosionproof
construction is damaged and may cause dangerous condition. Please contact
Yokogawa for any repair or modification required to the instrument.
Indicates a potentially hazardous situation which, if not avoided, may result in
minor or moderate injury. It may also be used to alert against unsafe practices.
CAUTION
This instrument is tested and certified as explosionproof type. Please note that the
construction of the instrument, installation, external wiring, maintenance or repair is
strictly restricted, and non-observance or negligence of these restriction would
result dangerous condition.
IMPORTANT
Indicates that operating the hardware or software in this manner may damage it or
lead to system failure.
NOTE
1-2
Draws attention to information essential for understanding the operation and
features.
IM 1F2F4-01E
1. INTRODUCTION
■ Warranty
The warranty shall cover the period noted on the quotation presented to the
purchaser at the time of purchase. Problems occurred during the warranty period
shall basically be repaired free of charge.
• In case of problems, the customer should contact the Yokogawa representative
from which the instrument was purchased, or the nearest Yokogawa office.
• If a problem arises with this instrument, please inform us of the nature of the
problem and the circumstances under which it developed, including the model
specification and serial number. Any diagrams, data and other information you
can include in your communication will also be helpful.
• Responsible party for repair cost for the problems shall be determined by
Yokogawa based on our investigation.
● The purchaser shall bear the responsibility for repair costs, even during the warranty period, if
the malfunction is due to:
• Improper and/or inadequate maintenance by the purchaser.
• Failure or damage due to improper handling, use or storage which is out of
design conditions.
• Use of the product in question in a location not conforming to the standards
specified by the Yokogawa, or due to improper maintenance of the installation
location.
• Failure or damage due to modification or repair by the party except Yokogawa
or who is requested by Yokogawa.
• Malfunction or damage from improper relocation of the product in question after
delivery.
• Reason of force majeure such as fires, earthquakes, storms/floods, thunder/
lightening, or other natural disasters, or disturbances, riots, warfare, or radioactive contamination.
IM 1F2F4-01E
1-3
2. PARTS OF THE AMPLIFIER
Refer to the individual instruction manuals for detailed descriptions of the parts.
This section describes the topics applicable to the Fieldbus communication protocol.
(1)The Fieldbus communication type has no local key access.
(2)The Fieldbus communication protocol has a simulation function. A SIMULATE-
ENABLE jumper is mounted in the YF100 amplifier to discourage attempts to
trigger the simulation function during operation. Refer to Section 6.3, “Simulation Function” for details of the simulation function.
2. PARTS OF THE AMPLIFIER
Figure 2.1 Shape of the CPU Assembly
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2-1
3. ABOUT FIELDBUS
3.1 Outline
Fieldbus is a bi-directional digital communication protocol for field devices. Fieldbus
is a dramatic advance in implementation technologies for process control systems
and is widely employed by numerous field devices. It is expected to replace the
standard 4 to 20 mA analog communication protocol.
3. ABOUT FIELDBUS
YF100 Series Fieldbus communication protocol employs the specification
(FOUNDATION
Fieldbus, and provides interoperability between Yokogawa devices and those
produced by other manufacturers. Fieldbus comes with software consisting of AI
function block, providing the means to implement a flexible instrumentation system.
For information on other features, engineering, design, construction work, startup
and maintenance of Fieldbus, refer to “The Fieldbus Reference Manual” (TI
38K3A01-01E).
TM*1
Fieldbus Low Voltage Mode) standardized by the Foundation
3.2 Internal Structure of YF100
The YF100 contains virtual field devices (VFD) that share the following functions.
3.2.1 System/network Management VFD
• Sets node addresses and device tags necessary for communication.
• Controls the execution of function blocks.
• Manages operation parameters and communication resources (Virtual Communication Relationship: VCR).
3.2.2 Function Block VFD
(1) Resource block
• Manages the status of YF100 hardware.
• Automatically informs the host of the detected faults or other problems.
(2) Transducer block
• Converts sensor output to flow signal and delivers to AI function block.
(3) AI function block
• Outputs flow signals.
• Carries out scaling, and damping.
*1: FOUNDATION is a registered trademark of the Foundation Fieldbus.
IM 1F2F4-01E
3-1
3.3 Correlation of Each Block
YF100
Sensor
Sensor
Input
Management VFD
Device Tag
Node Address
Function Block VFD
Transducer Block
Block Tag
Parameters
Resource Block
Block Tag
Parameters
Communication
Parameters
VCR
Function Block
Execution Schedule
AI function block
AI Function Block
Block Tag
Parameters
OUT
Output
F0301.EPS
Figure 3.1 Correlation of Each Block
Setting of various parameters, node address, and device tag shown in Figure 3.1
is required before starting operation.
3.4 Wiring System Configuration
The number of devices that can be connected to a single bus and the cable length
vary depending on system design. When constructing systems, both the fundamental and overall design, must be carefully considered to allow device performance to be fully exhibited.
3-2
IM 1F2F4-01E
4. FOR NOVICE USERS
Fieldbus is fully dependent upon digital communication protocol and differs in
operation from conventional 4 to 20 mA transmission and the BRAIN communication protocol. It is recommended that novice users use field devices in accordance
with the procedures described in this section. The procedures assume that field
devices will be used for laboratories or similar experimental purposes.
4.1 Connection of Equipment
The following equipment is required for use with Fieldbus devices:
• Power supply: Fieldbus requires a dedicated power supply. It is recommended
that current capacity should be well over the total value of the
maximum current consumed by all devices (including the host).
Conventional DC current cannot be used as power supply.
• Terminator: Fieldbus requires two terminators. Refer to the supplier for
details of terminators that are attached to the host.
• Field devices: Connect Fieldbus communication type YF100. Two or more
YF100 (devices) or other devices can be connected.
• Host: Used for accessing field devices. A dedicated host (such as
DCS) is used for an instrumentation line while dedicated communication tools are used for experimental purposes. For
operation of the host, refer to the instruction manual for each
host. No details of the host are explained in the rest of this
material.
• Cable: Used for connecting equipment. Refer to “Guide to Fieldbus” (TI
38K3A01-01E) for details of instrumentation cabling. If the total
length of the cable is in a range of 2 to 3 meters for laboratory
or other experimental use, the following simplified cable (a
twisted pair wire with a cross section of 0.8 mm2 or more (#18
AWG) and cycle period of within 5 cm (2 inches) may be used.
Termination processing depends on the type of device being
deployed. For YF100, use an M3.5 screw terminal claw. Some
hosts require a connector.
4. FOR NOVICE USERS
IM 1F2F4-01E
Refer to Yokogawa when making arrangements to purchase the recommended
equipment.
Connect the equipment as shown in Figure 4.1. Connect the terminators at both
ends of the trunk, with a minimum length of the spur laid for connection.
Be care that the polarity of the terminal is correct.
4-1
Fieldbus power
supply
Terminator
YF100
HOST
Terminator
F0401.EPS
Figure 4.1 Cabling
Note: No CHECK terminal is used for Fieldbus communication YF100. Do not connect the field
indicator and check meter.
Before using a Fieldbus configuration tool other than the existing host, confirm it
does not affect the loop functionality in which all devices are already installed in
operation. e.g. disconnect the relevant control loop from the bus.
IMPORTANT
Connecting a Fieldbus configuration tool to a loop with its exsisting host may
cause communication data scrambles resulting in a functional disorder or a system
failure.
4-2
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4.2 Host Setting
To activate Fieldbus, the following settings are required for the host.
Note: Care must be taken not to turn off the power immediately after setting. If the power is turned off
within 30 seconds after setting is made, the modified parameters are not saved and the settings
revert back to the original values.
Table 4.1 Operation Parameters
Symbol Parameter Description and Settings
V (ST) Slot-Time
V (MID) Minimum-Inter-PDU-Delay
V (MRD) Maximum-Reply-Delay
V (FUN) First-Unpolled-Node
V (NUN) Number-of-consecutive-
Unpolled-Node
0x00
4. FOR NOVICE USERS
Set 4 or greater value.
Set 4 or greater value.
Set so that V (MRD) x V (ST) is 12 or greater
Indicate the address next to the address range
used by the host. Set hex. 15 or greater.
Unused address range. YF100 address is factory-
set to hex. F5. Set this address to be within the
range of the BASIC device in Figure 4.2.
T0401.EPS
Not used
V(FUN)
V(FUN)+V(NUN)
YEWFLO(0xF5)
Note 1: LM device: with bus control function (Link Master function)
Note 2: BASIC device: without bus control function
Figure 4.2 Available Range of Node Address
4.3 Bus Power ON
Turn on the power of the host and the bus. Where the YF100 is equipped with an
LCD indicator, first all segments are lit, then the display begins to operate. If the
indicator is not lit or abnormal current flows, check the polarity of the power supply.
Using the host device display function, check that YF100 is in operation on the
bus. Unless otherwise specified, the following settings are in effect when shipped
from the factory.
0x10
BASIC device
0xF7
0xF8
Default address
0xFB
0xFC
Portable device address
0xFF
LM device
Not used V(NUN)
F0402.EPS
IM 1F2F4-01E
Device tag: FI1001
Node address: 245 (hexadecimal F5)
Device ID: 5945430002xxxxxxxx (xxxxxxxx = a total of 8 alphanumeric
characters)
If no YF100 is detected, check the available address range and the polarity of the
power supply. If two YF100s are connected at a time, only one YF100 will be
detected if both YF100s have the same initial address. Separately connect each
YF100 and set a different address for each.
4-3
4.4 Integration of DD
If the host supports DD (Device Description), the DD of the YF100 needs to be
included. Check if the following directory is placed under the directory where the
host DD is to be contained.
594543\0002
(Of this directory, 594543 is the manufacturer number of Yokogawa Electric
Corporation, and 0002 is the YF100 device number, respectively.)
In the absence of this directory, no DD of YF100 has been included. Create the
above directory and copy the DD file (0101.ffo,0101.sym) (option) into the directory.
Once the DD is included in the directory, the name and attribute of all parameters
of the YF100 are displayed.
4.5 Reading the Parameters
To read YF100 parameters, select the AI block of the YF100 from the host screen
and read the OUT parameter. The current flow is displayed.
(Check that MODE_BLK of the function block resource block is set to AUTO.)
4.6 Continuous Record of Settings
If the host has a function of continuously recording the indications, use this function to list the indications (values). Depending on the host being used, it may be
necessary to set the schedule of Publish (the function that transmits the indication
on a periodic basis).
4.7 Generation of Alarm
If the host is allowed to receive alarms, generation of an alarm can be attempted
from YF100. In this case, set the reception of alarms on the host side. YF100’s
VCR-7 and link object-3 are factory-set for this purpose. For practical purposes, all
alarms are placed in a disabled status; for this reason, it is recommended that you
first use one of these alarms on a trial basis.
Since the LO_PRI parameter (index 629) of the AI block is set to “0”, try setting
this value to “3”. Select the Write function from the host in operation, specify an
index or variable name, and write “3” to it.
The LO_LIM parameter (index 630) of the AI block determines the limit at which
the lower bound alarm for the process value is given. In usual cases, a very small
value is set to this limit. Set 10 (meaning 10 kg/min) to the limit. Since the flow is
almost 0, a lower bound alarm is raised. Check that the alarm can be received at
the host. When the alarm is confirmed, transmission of the alarm is suspended.
4-4
The above-mentioned items are a description of the simple procedure to be carried
out until YF100 is connected to Fieldbus. In order to take full advantage of the
performance and functionality of the device, it is recommended that it be read
together with Chapter 5, which describes how to use the YF100.
IM 1F2F4-01E
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