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Summary of Contents for CET PMC-230
- Page 1 PMC-230 Single-Phase Multifunction Meter User Manual Version: V1.0 June 29, 2020...
- Page 2 The information contained in this Manual is believed to be accurate at the time of publication; however, CET assumes no responsibility for any errors which may appear here and reserves the right to make changes without notice. Please consult CET or your local representative for latest product specifications.
- Page 3 CET Electric Technology DANGER Failure to observe the following instructions may result in severe injury or death and/or equipment damage. ➢ Installation, operation and maintenance of the meter should only be performed by qualified, competent personnel that have the appropriate training and experience with high voltage and current devices.
- Page 4 This warranty is on a return to factory for repair basis. ➢ CET does not accept liability for any damage caused by meter malfunctions. CET accepts no responsibility for the suitability of the meter to the application for which it was purchased.
- Page 5 CET Electric Technology Glossary COM / Comm. = Communication = Current Transformer DI / DO = Digital Input / Output = Front Panel Imp. / Exp. = Import / Export = Mega Byte MBPW = Modbus Password = National Electricity Rules...
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Page 6: Table Of Contents
Table of Contents Chapter 1 Introduction ............................1 1.1 Overview ............................... 1 1.2 Features ................................ 1 1.3 PMC-230’s application in Power and Energy Management System.............. 2 1.4 Getting More Information ..........................2 Chapter 2 Installation.............................. 3 2.1 Appearance ..............................3 2.2 Terminal Dimensions ............................ - Page 7 CET Electric Technology 5.7.2 I/O Setup .............................. 21 5.7.3 Communication Setup ......................... 21 5.8 TOU Setup ..............................21 5.8.1 Basic ..............................21 5.8.2 Seasons ..............................22 5.8.3 Daily Profile ............................22 5.8.4 Alternate Days............................23 5.9 Data Recorder Setup ........................... 23 5.10 Time ................................
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Page 8: Chapter 1 Introduction
Australia National Electricity Rules (NER) schedule 7.5 for the ability to disconnect/re-connect from the supply. The PMC-230 also complies with the IEC 62053-21 Class 1 kWh Accuracy Standard and has received the certificate of approval from the National Measurement Institute (NMI) of Australia for compliance with the M6-1 Electricity Meters, Part 1: Metrological and Technical Requirements. -
Page 9: Pmc-230'S Application In Power And Energy Management System
▪ Easy integration into other Automation or SCADA systems via Modbus RTU protocol ▪ 1.3 PMC-230’s application in Power and Energy Management System Figure 1-1 Typical Application 1.4 Getting More Information Additional information is available from CET via the following sources: ▪... -
Page 10: Chapter 2 Installation
Chapter 2 Installation Caution Installation of the PMC-230 should only be performed by qualified, competent personnel that have the appropriate training and experience with high voltage and current devices. The meter must be installed in accordance with all local and national electrical codes. -
Page 11: Unit Dimensions
Unit: mm Bottom View 2.4 Installations The PMC-230 should be installed in a dry environment with no dust and kept away from heat, radiation and electrical noise source. Installation steps: ▪ Before installation, make sure that the DIN rail is already in place ▪... -
Page 12: Rs-485 Wiring
2.5 RS-485 Wiring The PMC-230 provides one standard RS-485 port that supports the Modbus RTU protocol. Up to 32 devices can be connected on an RS-485 bus. The overall length of the RS-485 cable connecting all devices should not exceed 1200m. -
Page 13: Chapter 3 Front Panel
3.3 Display Modes The PMC-230 has a default display which can be set as one of two modes: Fixed mode which displays kWh Imp statically and Auto-Scroll mode which displays kWh/kvarh Imp./Exp. and kVAh as well as kWh Imp./Exp. per Tariff sequentially in 4 seconds interval. -
Page 14: Data Display
CET Electric Technology 3.4 Data Display In Data Display mode, pressing the <▼> button scrolls to the next parameter while pressing the < > button toggles among Energy, Real-time Data and Counter menus. Figure 3-3 Data Display... -
Page 15: Setup Configuration Via The Front Panel
CET Electric Technology 3.5 Setup Configuration via the Front Panel Pressing the < > button for two seconds enters the Setup Configuration mode where the setup parameters can be changed. Upon completion, pressing the < > button for two seconds returns to the Data Display mode. -
Page 16: Setup Menu
CET Electric Technology 3.5.2 Setup Menu Figure 3-4 Setup Menu... -
Page 17: Configurations
CET Electric Technology 3.5.3 Configurations The Setup Configurations mode provides access to the following setup parameters: Label Parameters Description Option (value) Default PROG Programming Setup Configuration Mode Password Enter Password 0~9999 SET PW Set Password Enter New Password 0~9999 DISC... -
Page 18: Chapter 4 Applications
4.2 Metering 4.2.1 Basic Measurements The PMC-230 provides real time measurements for I, U, P, Q, S, PF, Freq., U THD, I THD and Operating Time. 4.2.2 Energy Measurements The PMC-230 provides Energy measurements for kWh, kvarh Import/Export and kVAh at a resolution of 0.01 kxh and a maximum value of 1,000,000.00 kxh. -
Page 19: Harmonics
Reset and Before Last Reset. Table 4-2 Demand Setup 4.2.4 Harmonics The PMC-230 provides the U THD and I THD measurements which can be retrieved via the Front Panel or through communications. There are two methods for calculating the THD: THDf:... -
Page 20: Soe Log
CET Electric Technology 4.3.2 SOE Log The PMC-230’s SOE Log can store up to 32 events such as Power-on, Power-off, Digital Input Status changes, Disconnect Relay Status changes, Self-diagnostics and Setup changes in its non-volatile memory. Each event record includes the event classification, its relevant parameter values and a timestamp in ±1ms resolution. The SOE Log can be retrieved via communications for display. -
Page 21: Time Of Use (Tou)
TOU tariffs based on the time of consumption. TOU programming is only supported through communications. The TOU feature on PMC-230 supports two TOU schedules, which can be switched at a pre-defined time. Each TOU schedule supports: •... -
Page 22: Chapter 5 Modbus Map
This chapter provides a complete description of the Modbus register map (Protocol Version 1.0) for the PMC- 230 to facilitate the development of 3 party communications driver for accessing information on the PMC-230. The PMC-230 supports the following Modbus functions:... -
Page 23: Real Time Energy Measurements
3. For the Disconnect Relay Status register, the returned value “1” means Connected while “0” means Disconnected. 4. The PMC-230 has one SOE Log and one DR Log. Each of these logs has a Log Pointer that indicates its current logging position. The ran ge of the Log Pointer is between 0 and 0xFFFFFFFF, and it is incremented by one for every new log generated and will roll o ver to 0 if its current value is 0xFFFFFFFF. -
Page 24: Max. Demand Of Last Month (Before Last Reset)
1. This register represents the Month when it is read. To read the Monthly Energy Log, this register must be first written to indicate to the PMC-230 which log to load from memory. The range of this register is from 0 to 12, which represents the Present Month and the Last 12 Months. -
Page 25: Data Recorder Log
CET Electric Technology 5.6.2 Data Recorder Log Register Property Description Format Note 20000 Data Recorder Index UINT32 See Note 1) High-order Byte: Year 1 to 37 (Year-2000) 20002 UINT16 Low-order Byte: Month 1 to 12 High-order Byte: Day 1 to 31... - Page 26 CET Electric Technology SOE Classification Event Sub- Event Status Description Classification Classification Value 1=DI1 Inactive, 2=DI1 Active 1=DI Changes 1=DI2 Inactive, 2=DI2 Active 1=DI3 Inactive, 2=DI3 Active 1=Relay Operated, 2=Relay Released via Comm. 2=Relay Status 1=Relay Operated, 2=Relay Released via the Front Panel...
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Page 27: Device Setup
Modbus Read/Write operations with the PMC-230, if the MBPW (Modbus Password) register is enabled. If the Comm. Password is correct, the master software will be able to communicate with the same PMC-230 continually until there is a period of inactivity of 60 seconds or longer. -
Page 28: I/O Setup
CET Electric Technology GMT-04:00 GMT+07:00 GMT-03:30 GMT+08:00 GMT-03:00 GMT+09:00 GMT-02:00 GMT+09:30 GMT-01:00 GMT+10:00 GMT+00:00 GMT+11:00 GMT+01:00 GMT+12:00 GMT+02:00 GMT+13:00 GMT+03:00 Table 5-16 Time Zones 5.7.2 I/O Setup Register Property Description Format Range, Default* 6200 DI1 Function UINT16 0=Status Input, 1=Pulse Counter*... -
Page 29: Seasons
5.8.2 Seasons The PMC-230 has two sets of Season setup parameters, one for each TOU. The Base Addresses for the two sets are 7100 and 8100, respectively, where the Register Address = Base Address + Offset. For example, the register address for TOU #1’s Season #2’s Start Date is 7100+4 = 7104. -
Page 30: Alternate Days
TOU settings. The PMC-230 has two sets of Alternate Days setup parameters, one for each TOU. The Base Addresses for the two sets are 7700 and 8700, respectively, where the Register Address = Base Address + Offset. For example, the register address for TOU #2’s Alternative Day #2’s Date is 8700+3 = 8703. -
Page 31: Time
5.10 Time There are two sets of Time registers supported by the PMC-230 – Year / Month / Day / Hour / Minute / Second (Registers # 60000 to 60002) and UNIX Time (Register # 60004). When sending time to the PMC-230 over Modbus communications, care should be taken to only write one of the two Time register sets. -
Page 32: Remote Control
Modbus Holding Registers (4XXXXX), which can be controlled with the Force Single Coil command (Function Code 0x05) or the Preset Multiple Hold Registers (Function Code 0x10). The PMC-230 does not support the Read Coils command (Function Code 0x01) because Remote Control registers are “Write-Only”. The Disconnect Relay Status register 0043 should be read instead to determine the current Disconnect Relay status. - Page 33 60225 9825 Serial Number UINT32 Table 5-32 Meter Information Note: 1) The Meter Model Appears from registers 60200 to 60219 and contains the ASCII encoding od the string “PMC-230” as shown in the following table. Register Value (Hex) ASCII 60200...
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Page 34: Appendix A - Technical Specification
CET Electric Technology Appendix A – Technical Specification Measurement Inputs (L, N, L’, N’) 220VAC 230VAC 240VAC Voltage (Un) 120% 115% 110% Overrange (% Un) 95-264VAC Range Burden <3VA Current (Ib / Imax) 5A / 63A Starting Current 0.4% Ib (20mA) Minimum Current 5% Ib (0.25A) -
Page 35: Appendix B - Standards Of Compliance
CET Electric Technology Appendix B – Standards of Compliance Safety Requirements EN 61010-1: 2010 CE LVD 2014/35/EU EN 61010-2-030: 2010 Electrical safety in low voltage distribution IEC 61557-12: 2018 (PMD) systems up to 1000Vac and 1500 Vdc Insulation IEC 62052-11: 2003... -
Page 36: Appendix C - Ordering Guide
CET Electric Technology Appendix C – Ordering Guide... -
Page 37: Contact Us
CET Electric Technology Contact us CET Electric Technology Inc. Email: Support@cet-global.com Web: www.cet-global.com...
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