Yokogawa PR300 Power and Energy Meter User Manual

User’sManualIM 77C01E01-10EModel PR300Power and Energy MeterCommunication Interface(RS-485 and Ethernet Communications)IM 77C01E01-10E4th Edition

<Toc> <Ind> <2. Setup>2-1IM 77C01E01-10E2. SetupThis chapter describes how to set up the PR300, which is equipped with RS-485commun

6-6<Toc> <Ind> < 6. Modbus/TCP Communication Protocol>IM 77C01E01-10E6.4.3 Request and Response03 Reads data from multiple D regis

<Toc> <Ind> < 6. Modbus/TCP Communication Protocol>6-7IM 77C01E01-10E06 Writes data into D register● FunctionThis function code wr

6-8<Toc> <Ind> < 6. Modbus/TCP Communication Protocol>IM 77C01E01-10E08 Performs loop back test● FunctionThis function code is use

<Toc> <Ind> < 6. Modbus/TCP Communication Protocol>6-9IM 77C01E01-10E16 Writes data into multiple D registers● FunctionThis functi

6-10<Toc> <Ind> < 6. Modbus/TCP Communication Protocol>IM 77C01E01-10E● ExampleSet both the VT ratio and CT ratio to 1.[Request] 0

<Toc> <Ind> < 6. Modbus/TCP Communication Protocol>6-11IM 77C01E01-10E6.4.4 Response Error Codes● When a response is returnedIf an

6-12<Toc> <Ind> < 6. Modbus/TCP Communication Protocol>IM 77C01E01-10E6.5 Sample Program6.5.1 Example of BASIC Program for Send an

<Toc> <Ind> < 6. Modbus/TCP Communication Protocol>6-13IM 77C01E01-10EExample of the Program Created Using Visual-BASIC Version 6.

6-14<Toc> <Ind> < 6. Modbus/TCP Communication Protocol>IM 77C01E01-10E‘Create sending datastrSendData = "12340000000601030000

<Toc> <Ind> < 6. Modbus/TCP Communication Protocol>6-15IM 77C01E01-10E‘Create sending datastrSendData = "12340000000602030000

2-2<Toc> <Ind> <2. Setup>IM 77C01E01-10E2.1.1 Procedure for RS-485 CommunicationCommunication parameters setting for PR300Set up th

<Toc> <Ind> <7. Functions and Usage of D Registers>7-1IM 77C01E01-10E7. Functions and Usage of D Registers7.1 Overview of D Registe

7-2<Toc> <Ind> <7. Functions and Usage of D Registers>IM 77C01E01-10E7.4 D Register Map● Process Data (D0001 to D0146) D-Reg No.

<Toc> <Ind> <7. Functions and Usage of D Registers>7-3IM 77C01E01-10E D-Reg No. Ref No. H No. Register Symbol Register Name E

7-4<Toc> <Ind> <7. Functions and Usage of D Registers>IM 77C01E01-10E● Parameter/Control Data (D0201 to D0400) D-Reg Ref No. H No.

<Toc> <Ind> <7. Functions and Usage of D Registers>7-5IM 77C01E01-10E D-Reg Ref No. H No. Register Symbol Register Name Effecti

7-6<Toc> <Ind> <7. Functions and Usage of D Registers>IM 77C01E01-10ED0099 and D0100 are designed to represent two or more events,

<Toc> <Ind> <8. PR201 Original Communication Protocol>8-1IM 77C01E01-10E8. PR201 Original Communication Protocol8.1 OverviewThis fu

8-2<Toc> <Ind> <8. PR201 Original Communication Protocol>IM 77C01E01-10E8.3 Command/Response FormatCommand components:STXCommandPar

<Toc> <Ind> <8. PR201 Original Communication Protocol>8-3IM 77C01E01-10E8.4 List of CommandsParameters common for preceding styles

8-4<Toc> <Ind> <8. PR201 Original Communication Protocol>IM 77C01E01-10ECommand: DP0123456789ABCDEFGNot available in PR300Not avail

<Toc> <Ind> <2. Setup>2-3IM 77C01E01-10E2.1.2 Procedure for Ethernet CommunicationEthernetLAN connectionHUBStation number 01 (fixed

<Toc> <Ind> <8. PR201 Original Communication Protocol>8-5IM 77C01E01-10E8.5 Command Details Command: DG● Parameter: 0 (Reads measu

8-6<Toc> <Ind> <8. PR201 Original Communication Protocol>IM 77C01E01-10E● Parameter: 1 (Reads electric energy)• FunctionReads the a

<Toc> <Ind> <8. PR201 Original Communication Protocol>8-7IM 77C01E01-10E● Parameter: 2 (Reads optional electric energy)• FunctionRe

8-8<Toc> <Ind> <8. PR201 Original Communication Protocol>IM 77C01E01-10E• ExampleReads the active power of PR300 with station numbe

<Toc> <Ind> <8. PR201 Original Communication Protocol>8-9IM 77C01E01-10E● Parameter: 5 (Instantaneous current-1), parameter: K (Ins

8-10<Toc> <Ind> <8. PR201 Original Communication Protocol>IM 77C01E01-10E• ExampleReads a power factor of PR300 with station number

<Toc> <Ind> <8. PR201 Original Communication Protocol>8-11IM 77C01E01-10E● Parameter: 8 (Stops optional integration)• FunctionStops

8-12<Toc> <Ind> <8. PR201 Original Communication Protocol>IM 77C01E01-10E• ExampleInitializes the maximum and minimum values of PR3

<Toc> <Ind> <8. PR201 Original Communication Protocol>8-13IM 77C01E01-10E• ExampleReads in batch the measured values and maximum/mi

8-14<Toc> <Ind> <8. PR201 Original Communication Protocol>IM 77C01E01-10E• ExampleReads the maximum voltage-1 of PR300 with station

2-4<Toc> <Ind> <2. Setup>IM 77C01E01-10E2.1.3 Procedure for Ethernet-Serial Gateway FunctionStation number 01 (fixed)IP address [19

<Toc> <Ind> <8. PR201 Original Communication Protocol>8-15IM 77C01E01-10E● Parameter: F (Reads measured values in batch)• FunctionR

8-16<Toc> <Ind> <8. PR201 Original Communication Protocol>IM 77C01E01-10E● Parameter: G (Reads electric energy)• FunctionReads the

<Toc> <Ind> <8. PR201 Original Communication Protocol>8-17IM 77C01E01-10E● Parameter: M (Reads measured values and maximum/minimum

8-18<Toc> <Ind> <8. PR201 Original Communication Protocol>IM 77C01E01-10E● ExampleReads the measured value and maximum/minimum valu

<Toc> <Ind> <8. PR201 Original Communication Protocol>8-19IM 77C01E01-10ENote 1: Information on model and suffix codesPR201-夽夹011-2

8-20<Toc> <Ind> <8. PR201 Original Communication Protocol>IM 77C01E01-10E● Parameter: Z (Error response)• FunctionReturns an error

<Toc> <Ind> <8. PR201 Original Communication Protocol>8-21IM 77C01E01-10E Command: DP● Parameter: 0 (Reads setting value)• Functio

8-22<Toc> <Ind> <8. PR201 Original Communication Protocol>IM 77C01E01-10E● Parameter: A (Remote reset)• FunctionPerforms remote res

<Toc> <Ind> <8. PR201 Original Communication Protocol>8-23IM 77C01E01-10E● Parameter: G (Integration reset)• FunctionResets the act

<Toc> <Ind> <Appendix. Table of ASCII Codes (Alphanumeric Codes) >App.-1IM 77C01E01-10EAppendix Table of ASCII Codes(Alphanumeric C

<Toc> <Ind> <2. Setup>2-5IM 77C01E01-10E● VJET Ethernet/RS-485 converter as an Ethernet-serial gateway functionStation number 01 (f

i<Int> <Toc> <Ind>IM 77C01E01-10E 4th Edition: June 20, 2008-00Revision Information● Title : Model PR300Power and Energy Meter Commu

YOKOGAWA ELECTRIC CORPORATIONHeadquarters2-9-32, Nakacho, Musashino-shi, Tokyo, 180-8750 JAPANBranch Sales OfficesNagoya, Osaka, Hiroshima, Fukuoka, S

2-6<Toc> <Ind> <2. Setup>IM 77C01E01-10E2.2 Setting Communication ConditionsThis section describes the setting parameters for using

<Toc> <Ind> <2. Setup>2-7IM 77C01E01-10E● Protocol (COMM)Set the communication protocol identical to that of the higher-level devic

2-8<Toc> <Ind> <2. Setup>IM 77C01E01-10E2.2.2 Conditions for Ethernet CommunicationThis subsection describes the setting parameters

<Toc> <Ind> <2. Setup>2-9IM 77C01E01-10E● Protocol (COMM)Set the protocol to Modbus/TCP.● IP address-1 to 4 (IP-n) [n: integers fro

2-10<Toc> <Ind> <2. Setup>IM 77C01E01-10E2.2.3 Conditions for Ethernet-Serial Gateway FunctionThe Ethernet-serial gateway function

<Toc> <Ind> <Rev>iIM 77C01E01-10EIntroductionThis user's manual describes the communication functions of the PR300 power and en

<Toc> <Ind> <2. Setup>2-11IM 77C01E01-10E● Setting for PR300 to perform the Ethernet-serial gateway functionTo use the Ethernet-ser

2-12<Toc> <Ind> <2. Setup>IM 77C01E01-10E2.3 Wiring for CommunicationConnect a higher-level device with the PR300 for using the com

<Toc> <Ind> <2. Setup>2-13IM 77C01E01-10E2.3.2 Wiring for Ethernet CommunicationTo use the Ethernet communication function, connect

2-14<Toc> <Ind> <2. Setup>IM 77C01E01-10E2.3.3 Wiring for RS-485 Communication for Ethernet-SerialGateway FunctionTo use the Ethern

<Toc> <Ind> <3. Procedures for Setting PR300 Functions>3-1IM 77C01E01-10E3. Procedures for Setting PR300 FunctionsTo set the functi

3-2<Toc> <Ind> <3. Procedures for Setting PR300 Functions>IM 77C01E01-10E3.1 Basic Setting3.1.1 Setting of VT Ratio[Procedure](1) W

<Toc> <Ind> <3. Procedures for Setting PR300 Functions>3-3IM 77C01E01-10E3.1.2 Setting of CT Ratio[Procedure](1) Write a CT ratio t

3-4<Toc> <Ind> <3. Procedures for Setting PR300 Functions>IM 77C01E01-10E3.1.3 Setting of Integrated Low-cut Power[Procedure](1) Wr

<Toc> <Ind> <3. Procedures for Setting PR300 Functions>3-5IM 77C01E01-10E3.2 Setting Pulse Output3.2.1 Selection of Measurement Ite

3-6<Toc> <Ind> <3. Procedures for Setting PR300 Functions>IM 77C01E01-10E3.2.2 Pulse Unit[Procedure](1) Write a pulse unit value to

ii<Toc> <Ind> <Rev>IM 77C01E01-10EDocumentation Conventions SymbolsThis manual uses the following symbols.● Symbols Used in the Mai

<Toc> <Ind> <3. Procedures for Setting PR300 Functions>3-7IM 77C01E01-10E3.2.3 ON Pulse Width(1) Write an ON pulse width value to t

3-8<Toc> <Ind> <3. Procedures for Setting PR300 Functions>IM 77C01E01-10E3.3 Setting Analog Output3.3.1 Selection of Measurement It

<Toc> <Ind> <3. Procedures for Setting PR300 Functions>3-9IM 77C01E01-10E3.3.2 Upper/Lower Limits of Scaling[Procedure](1) Write up

3-10<Toc> <Ind> <3. Procedures for Setting PR300 Functions>IM 77C01E01-10E3.4 Demand Setting3.4.1 Demand Power/Current[Procedure](1

<Toc> <Ind> <3. Procedures for Setting PR300 Functions>3-11IM 77C01E01-10E3.4.2 Demand Period[Procedure](1) Write a demand period v

3-12<Toc> <Ind> <3. Procedures for Setting PR300 Functions>IM 77C01E01-10E3.4.3 Demand Alarm Mask Time[Procedure](1) Write a demand

<Toc> <Ind> <3. Procedures for Setting PR300 Functions>3-13IM 77C01E01-10E3.4.4 Demand Power Alarm Point[Procedure](1) Write a dema

3-14<Toc> <Ind> <3. Procedures for Setting PR300 Functions>IM 77C01E01-10E3.4.5 Demand Current Alarm Point[Procedure](1) Write a de

<Toc> <Ind> <3. Procedures for Setting PR300 Functions>3-15IM 77C01E01-10E3.4.6 Demand Alarm Release Function[Procedure](1) Write a

3-16<Toc> <Ind> <3. Procedures for Setting PR300 Functions>IM 77C01E01-10E3.5 Communication Setting3.5.1 Protocol[Procedure](1) Wri

<Toc> <Ind> <Rev>iiiIM 77C01E01-10ENotices Regarding This User's Manual(1) This manual should be passed on to the end user. K

<Toc> <Ind> <3. Procedures for Setting PR300 Functions>3-17IM 77C01E01-10E3.5.2 Baud Rate[Procedure](1) Write a baud rate value to

3-18<Toc> <Ind> <3. Procedures for Setting PR300 Functions>IM 77C01E01-10E3.5.3 Parity[Procedure](1) To set the parity, write data

<Toc> <Ind> <3. Procedures for Setting PR300 Functions>3-19IM 77C01E01-10E3.5.4 Stop Bit[Procedure](1) To set the stop bit, write d

3-20<Toc> <Ind> <3. Procedures for Setting PR300 Functions>IM 77C01E01-10E3.5.5 Data Length[Procedure](1) To set the data length, w

<Toc> <Ind> <3. Procedures for Setting PR300 Functions>3-21IM 77C01E01-10E3.5.6 Station Number[Procedure](1) To set the station num

3-22<Toc> <Ind> <3. Procedures for Setting PR300 Functions>IM 77C01E01-10E3.5.7 IP Address (for Ethernet communication)[Procedure](

<Toc> <Ind> <3. Procedures for Setting PR300 Functions>3-23IM 77C01E01-10E3.5.8 Subnet Mask (for Ethernet communication)[Procedure]

3-24<Toc> <Ind> <3. Procedures for Setting PR300 Functions>IM 77C01E01-10E3.5.9 Default Gateway (for Ethernet communication)[Proced

<Toc> <Ind> <3. Procedures for Setting PR300 Functions>3-25IM 77C01E01-10E3.5.10 Port Number (for Ethernet communication)[Procedure

3-26<Toc> <Ind> <3. Procedures for Setting PR300 Functions>IM 77C01E01-10E3.6 Writing Energy Values3.6.1 Active Energy[Procedure](1

iv<Toc> <Ind> <Rev>IM 77C01E01-10E Force Majeure(1) Yokogawa does not make any warranties regarding the product except those men-ti

<Toc> <Ind> <3. Procedures for Setting PR300 Functions>3-27IM 77C01E01-10E3.6.2 Regenerative Energy[Procedure](1) Write a regenerat

3-28<Toc> <Ind> <3. Procedures for Setting PR300 Functions>IM 77C01E01-10E3.6.3 LEAD Reactive Energy[Procedure](1) Write a LEAD rea

<Toc> <Ind> <3. Procedures for Setting PR300 Functions>3-29IM 77C01E01-10E3.6.4 LAG Reactive Energy[Procedure](1) Write a LAG react

3-30<Toc> <Ind> <3. Procedures for Setting PR300 Functions>IM 77C01E01-10E3.6.5 Apparent Energy[Procedure](1) Write an apparent ene

<Toc> <Ind> <3. Procedures for Setting PR300 Functions>3-31IM 77C01E01-10E3.7 Executing Reset Operations3.7.1 Remote Reset[Procedur

3-32<Toc> <Ind> <3. Procedures for Setting PR300 Functions>IM 77C01E01-10E3.7.2 Maximum/Minimum Values Reset[Procedure](1) To execu

<Toc> <Ind> <3. Procedures for Setting PR300 Functions>3-33IM 77C01E01-10E3.7.4 Active Energy Reset[Procedure](1) To execute active

3-34<Toc> <Ind> <3. Procedures for Setting PR300 Functions>IM 77C01E01-10E3.7.6 Reactive Energy Reset[Procedure](1) To execute reac

<Toc> <Ind> <3. Procedures for Setting PR300 Functions>3-35IM 77C01E01-10E3.8 Setting Control States3.8.1 Integration Start/Stop[P

3-36<Toc> <Ind> <3. Procedures for Setting PR300 Functions>IM 77C01E01-10E3.8.2 Optional Integration Start/Stop[Procedure](1) To ex

Toc-1<Int> <Ind> <Rev>IM 77C01E01-10ECONTENTSModel PR300 Power and Energy MeterCommunication Interface(RS-485 and Ethernet Communica

<Toc> <Ind> <3. Procedures for Setting PR300 Functions>3-37IM 77C01E01-10E3.8.3 Demand Measurement Start/Stop[Procedure](1) To exec

3-38<Toc> <Ind> <3. Procedures for Setting PR300 Functions>IM 77C01E01-10E3.8.4 Confirmation and Release of Demand Alarm State[Proc

<Toc> <Ind> <4. PC Link Communication Protocol>4-1IM 77C01E01-10E4. PC Link Communication Protocol4.1 OverviewThe use of PC link co

4-2<Toc> <Ind> <4. PC Link Communication Protocol>IM 77C01E01-10E4.1.1 Configuration of CommandCommands sent from a higher-level de

<Toc> <Ind> <4. PC Link Communication Protocol>4-3IM 77C01E01-10E(8) ETX (End of Text)This control code indicates the end of a comm

4-4<Toc> <Ind> <4. PC Link Communication Protocol>IM 77C01E01-10E4.1.3 Response Error CodesSee Also4.1.2, “Configuration of Respons

<Toc> <Ind> <4. PC Link Communication Protocol>4-5IM 77C01E01-10E4.1.4 Specifying BroadcastThe corresponding multiple PR300 perform

4-6<Toc> <Ind> <4. PC Link Communication Protocol>IM 77C01E01-10E4.2 Command and ResponseThe following shows the lists of commands

<Toc> <Ind> <4. PC Link Communication Protocol>4-7IM 77C01E01-10EWRD Reads D registers on a word-by-word basis● FunctionThis functi

4-8<Toc> <Ind> <4. PC Link Communication Protocol>IM 77C01E01-10EWWR Writes data into D registers on a word-by-word basis● Function

<Int> <Ind> <Rev>IM 77C01E01-10EToc-23.4.5 Demand Current Alarm Point ... 3-1

<Toc> <Ind> <4. PC Link Communication Protocol>4-9IM 77C01E01-10EWRR Reads D registers on a word-by-word basis in random order● Fun

4-10<Toc> <Ind> <4. PC Link Communication Protocol>IM 77C01E01-10EWRWWrites data into D registers on a word-by-word basis in random

<Toc> <Ind> <4. PC Link Communication Protocol>4-11IM 77C01E01-10EWRS Specifies the D registers to be monitored on a word-by-word b

4-12<Toc> <Ind> <4. PC Link Communication Protocol>IM 77C01E01-10EWRM Monitors the D registers on a word-by-word basis● FunctionThi

<Toc> <Ind> <4. PC Link Communication Protocol>4-13IM 77C01E01-10EINF6 Reads the model, suffix codes, and version information● Func

4-14<Toc> <Ind> <4. PC Link Communication Protocol>IM 77C01E01-10EINF7 Reads the maximum value of CPU● FunctionThis function code r

<Toc> <Ind> <4. PC Link Communication Protocol>4-15IM 77C01E01-10E4.3 Communication with Higher-level DevicesHigher-level devices a

4-16<Toc> <Ind> <4. PC Link Communication Protocol>IM 77C01E01-10EFA-M3's UT Link Module Setup Procedure (Example)This section

<Toc> <Ind> <4. PC Link Communication Protocol>4-17IM 77C01E01-10E4.4 Sample Program4.4.1 Example of BASIC Program for Send and Rec

4-18<Toc> <Ind> <4. PC Link Communication Protocol>IM 77C01E01-10E‘=== Subroutine ===*RECEIVECHR ‘Interruption processing during re

Toc-3<Int> <Ind> <Rev>IM 77C01E01-10E4.4 Sample Program ...

<Toc> <Ind> <5. Modbus/RTU and ASCII Communication Protocols>5-1IM 77C01E01-10E5. Modbus/RTU and ASCII CommunicationProtocols5.1 Ov

5-2<Toc> <Ind> <5. Modbus/RTU and ASCII Communication Protocols>IM 77C01E01-10EFor Modbus communication with the PR300, we provide

<Toc> <Ind> <5. Modbus/RTU and ASCII Communication Protocols>5-3IM 77C01E01-10E5.1.1 Configuration of MessageMessages sent from the

5-4<Toc> <Ind> <5. Modbus/RTU and ASCII Communication Protocols>IM 77C01E01-10E5.1.2 Specifying D RegistersSpecification of D regis

<Toc> <Ind> <5. Modbus/RTU and ASCII Communication Protocols>5-5IM 77C01E01-10E RTU ModeIn the RTU mode, errors are checked by mea

5-6<Toc> <Ind> <5. Modbus/RTU and ASCII Communication Protocols>IM 77C01E01-10ETable 5.2 Results of Performing CRC on 0th to 255th

<Toc> <Ind> <5. Modbus/RTU and ASCII Communication Protocols>5-7IM 77C01E01-10E5.1.4 Configuration of ResponseThe PR300 receives a

5-8<Toc> <Ind> <5. Modbus/RTU and ASCII Communication Protocols>IM 77C01E01-10E Responses to Abnormal MessagesIf there is any fail

<Toc> <Ind> <5. Modbus/RTU and ASCII Communication Protocols>5-9IM 77C01E01-10E5.1.5 Specifying BroadcastThe corresponding multiple

5-10<Toc> <Ind> <5. Modbus/RTU and ASCII Communication Protocols>IM 77C01E01-10E5.2 Message and ResponseFunction codes are command

<Toc> <Ind> <1. Communications Overview >1-1IM 77C01E01-10E1. Communications Overview1.1 RS-485 Communication SpecificationsProtoco

<Toc> <Ind> <5. Modbus/RTU and ASCII Communication Protocols>5-11IM 77C01E01-10E03 Reads data from multiple D registers● FunctionTh

5-12<Toc> <Ind> <5. Modbus/RTU and ASCII Communication Protocols>IM 77C01E01-10E06 Writes data into D register● FunctionThis functi

<Toc> <Ind> <5. Modbus/RTU and ASCII Communication Protocols>5-13IM 77C01E01-10E08 Performs loop back test● FunctionThis function c

5-14<Toc> <Ind> <5. Modbus/RTU and ASCII Communication Protocols>IM 77C01E01-10E16 Writes data into multiple D registers● FunctionT

<Toc> <Ind> <5. Modbus/RTU and ASCII Communication Protocols>5-15IM 77C01E01-10E● Example (ASCII mode)Write 10 into a series of fou

<Toc> <Ind> < 6. Modbus/TCP Communication Protocol>6-1IM 77C01E01-10E6. Modbus/TCP Communication Protocol6.1 OverviewModbus/TCP is

6-2<Toc> <Ind> < 6. Modbus/TCP Communication Protocol>IM 77C01E01-10EHUBPR300 as Ethernet-serial gateway functionRS-485 connection

<Toc> <Ind> < 6. Modbus/TCP Communication Protocol>6-3IM 77C01E01-10E6.2 TCP/IP CommunicationModbus/TCP communicates with other de

6-4<Toc> <Ind> < 6. Modbus/TCP Communication Protocol>IM 77C01E01-10E6.3 Network Frame StructureThe Modbus/TCP frame structure is

<Toc> <Ind> < 6. Modbus/TCP Communication Protocol>6-5IM 77C01E01-10E6.4 Communication with Higher-level Devices6.4.1 List of Func