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CMS-660 SYSTEM 

CIRCUIT MONITORING SYSTEM (CMS)

—

FAQ

Number

Topic

Explanation

1

Modbus Master / Slave

The CMS-660 does not have a Modbus master function. It operates as a slave and can be addressed 

accordingly in the settings.

2

Current direction

There is no current direction detection for AC. For DC measurement, the current direction can be read and 
modified via the corresponding polarity registers for each sensor.

3

USB

The control unit works as a USB device, not host. The USB port offers communication acc. Modbus RTU via USB 

CDC RS-232 emulation protocol.

4

LED Status:  
Green fast blink

The control unit is in boot mode. To leave the boot mode press the reset button for ~1 second (1 beep).

Содержание CMS-660

Страница 1: ...plant s string level Immediate detection of unusual system status e g solar shading over voltages breaker trip high temperature Simplified installation thanks to quick mounting of sensors Smart commissioning in only a few minutes Easy retrofitting and upgrade thanks to the flexible modular design ...

Страница 2: ......

Страница 3: ...torage of the Manual 005 General Information 006 Packaging Contents 007 010 Product Overview 011 013 Components of CMS system 014 017 Installation Guide 018 Wiring Diagrams 019 Initial Commissioning 020 026 Modbus 027 029 Modbus Mapping 030 FAQ Table of contents ...

Страница 4: ...may appear in this document ABB Ltd is not liable under any circumstances for any direct indirect special incidental or consequential damage of any kind that may arise from using this document ABB Ltd is also not liable for incidental or consequential damage that may arise from using the software or hardware mentioned in this document Brand ABB Ltd is a registered trademark of ABB Group All other ...

Страница 5: ...to check that the supply is interrupted Pay attention to any dangers and carefully check the work area ensuring that no instruments or foreign objects have been left inside the compartment in which the device is housed The correct use of this device depends on a correct manipulation installation and use Failure to adhere to the basic installation information can lead to injuries as well as damage ...

Страница 6: ... CMS Packaging Contents Attention The following items are not included in the delivery of the product 1 CMS Sensors 2 Power supply 3 CMS Bus 4 Connector set Control unit CMS 660 Installation manual CMS 660 Control Unit Status Network Reset USB ...

Страница 7: ...tion of SPD and Breaker status ensuring up to date information on the system CMS 660 also allows to get the temperature value through open core sensors The measurement data can be analyzed via RS485 interface with Modbus RTU protocol A micro USB port located on the front of the device is designed for configuration and operation The CMS 660 control unit is a measurement instrument for current branc...

Страница 8: ...ssing the button for 6 to less than 9 seconds 3 beeps restarts the device removes all sensor assignments and resets all configurations including Modbus ID factory reset Do not switch off the power supply during the reset process LEDs Two LEDs on CMS 660 indicate respectively the status of the device and the status of the network 1 LED Status Off Device is off Green on Normal operation Green slow b...

Страница 9: ...max 0 6 Nm Supply voltage V DC 24 10 Power Input W 0 5 11 dep on n of sensors Serial interface RS 485 Screw type terminals 0 5 2 5 mm max 0 6 Nm Serial transmission speed kbps 2 4 115 2 Cable type Twisted pair shielded Communication protocol Modbus RTU CMS Bus Max number of sensors 32 Refresh time 1 sec with max 32 sensors Digital inputs 2 Connection method Push in spring connection Cable diameter...

Страница 10: ...10 CMS 660 SYSTEM CIRCUIT MONITORING SYSTEM CMS Product Overview Overall dimensions 87 71 8 50 5 65 21 5 43 5 45 17 7 36 2 87 ...

Страница 11: ...mode There is a feature in the configuration to switch off the LED after a specified time OFF Sensor is not connected to CMS Bus or LED is switched off Flashing slowly Sensor is not assigned Flashing fast Sensor is identified by the show sensor command CMS Sensor Digital input port LEDs Reset button CMS Bus interface with up to 32 sensors Micro USB port 24 V DC external Power supply Serial RS 485 ...

Страница 12: ...0DR CMS 120CA CMS 121xx 40 A CMS 121PS CMS 121LA CMS 121FH CMS 121DR CMS 121CA CMS 122xx 20 A CMS 122PS CMS 122LA CMS 122FH CMS 122DR CMS 122CA Solid core sensors AC accuracy of 0 5 18 mm overall width CMS 100xx 80 A CMS 100PS CMS 100S8 CMS 100DR CMS 100CA CMS 101xx 40 A CMS 101PS CMS 101S8 CMS 101DR CMS 101CA CMS 102xx 20 A CMS 102PS CMS 102S8 CMS 102DR CMS 102CA 25 mm overall width CMS 200xx 160...

Страница 13: ... m Number of sensors Solid core sensors Open core sensors 32 4 5 7 5 28 5 0 8 5 24 6 0 10 0 20 7 0 12 0 16 8 5 15 0 12 11 0 20 0 8 16 0 30 0 Flat cables longer than approx 15 m could require a 120 Ω terminating resistor between the two inner wires at the far end For the flat cable please consider Use within closed housings only Keep a distance of min 5 5 mm to uninsulated live parts Protection cla...

Страница 14: ...onnel Assembly connection and removal work should only be carried out by authorized and qualified personnel Assembly on 35 mm DIN Rail For assembly of the control unit perform steps 1 and 2 The device can be mounted horizontally or vertically To dismantle perform steps 3 and 4 The CMS 660 can be mounted on all 35mm DIN rails DIN50022 and on SMISSLINE sockets Installation Guide CMS BUS DIGITAL INPU...

Страница 15: ...e process at all other marks Use the connectors only once Connect max 32 sensors to the CMS Bus interface of the control unit Consider the maximum flat cable length Flat cable should not exert force on the sensor otherwise measuring deviations may occur Keep a distance of 5 5mm minimum between the flat cable and uninsulated live parts CMS BUS DIGITAL INPUT Position of the Cable The cable must not ...

Страница 16: ...able through the opening of the sensor into the installed device The cable has to be insulated within the sensor 3 Then tighten the screw 1 Insert the sensor on the existing device in order to have the cable passing through the opening of the sensor 2 Snap the adapter of the sensor on the upper screw hole of the already installed device Installation Guide 1 4 2 3 Mounting Sensors on DIN Rails Sens...

Страница 17: ...ally connect the CMS Sensors to the control unit Plug in the cable check the correct connection direction Picture on the right CMS BUS DIGITAL INPUT 1 2 Mounting of cable tie sensors The cable should not exert force on the sensor otherwise measuring deviations may occur 1 Insert the cable into the installed device through the opening on the sensor 2 Fix the cable with a cable tie ...

Страница 18: ...he disconnecting device for the CMS 660 Disconnection from supply or connection to supply Switch off circuit breaker or switch before disconnecting or connecting Attention The installation and the cabling of the device must be carried out by qualified personnel Danger of electrocution burning and electric arc Use the personal protection devices suitable to adhere to the current regulations governi...

Страница 19: ...figuration mode Configured timeout Push the reset button for 1 sec Press the pushbutton of any CMS sensor already added for three times After leaving the configuration mode the LED Status of the control unit is green indicating normal operation If it is necessary to enter the configuration mode again after the first commissioning of the device e g one more sensor has to be assigned to the control ...

Страница 20: ...nt interval of more than 1 5 character times occurs between two characters the message frame is declared as incomplete and should be discarded by the receiver Modbus Data Encoding Modbus uses a big endian allocation for addresses and data items This means that when a numerical quantity larger than a single byte is transmitted the most significant byte is sent first Example 1234h first 12h then 34h...

Страница 21: ...ate configured for COM port on master side is not relevant in this USB mode On USB host side every program app can be used that offers Modbus communication via COM port Please check the ABB website to download the latest INF and CAT files containing all the information to install the CMS 660 USB driver for Windows USB and RS 485 can be used in parallel and independently during operation mode Only ...

Страница 22: ...lues unsigned 16 bit unsigned integer notation resolution 0 01 A signed 16 bit signed integer notation resolution 0 01 A 0000h 7FEFh 0 00 327 51 A 8000h FFFFh 327 66 0 01 A Code Name Description 01h Illegal function Function is not supported 02h Illegal data address Register address is out of control unit s range or trying to write into a read only register 03h Illegal data value Value is out of r...

Страница 23: ...s physical assignment procedure The specified sensor will be added logically to the system whose pushbutton will be pressed Its ID will be the lowest free and available ID in the system Allowed range for sensor ID 0001h 0020h 1 32 When sensor is added correctly within time out see section Sensor physical assignment time out start procedure common response will follow When time out is reached Modbu...

Страница 24: ...dbus exception code 04h slave device failure will follow Write operation with from ID or to ID out of range with unknown from ID or with to ID already used will lead to exception response with Modbus exception code 03h illegal data value Serial number of control unit These registers 3100h to 3107h contain system information about the control unit HW and SW version of the control unit are readable ...

Страница 25: ...ontrol unit stops continuous measurement data acquisition Internal bus traffic gives priority to configuration messages see next sections Sensor physical assignment time out start procedure and Sensor physical assignment time out bus mode Restart of control unit Reset of the device Behavior as being disconnected from supply voltage and connected again Settings configurations will be hold Remove al...

Страница 26: ...ment procedure the delay time between Modbus request and response can reach the time out value Default value 30 sec Sensor physical assignment time out bus mode This register 3002h describes the time out after start of sensor physical assignment procedure When this procedure is started by command add sensor see dedicated section remove sensor see dedicated section or change sensor ID see dedicated...

Страница 27: ...d R 03 1 0 01 A signed R 03 021E 1 DC value of Sensor 31 0 01 A signed R 03 021F 1 DC value of Sensor 32 0 01 A signed R 03 Minimum measured values These registers contain the minimum measured values since last system start or reset 0400 1 TRMS min value of Sensor 1 0 01 A unsigned R 03 0401 1 TRMS min value of Sensor 2 0 01 A unsigned R 03 1 0 01 A unsigned R 03 041E 1 TRMS min value of Sensor 31...

Страница 28: ...1 A signed R 03 1 0 01 A signed R 03 0A1E 1 DC max value of Sensor 31 0 01 A signed R 03 0A1F 1 DC max value of Sensor 32 0 01 A signed R 03 Measured hold values These registers contain the hold values captured at a given time during the execution of a trigger hold measurement request 0C00 1 TRMS hold value of Sensor 1 0 01 A unsigned R 03 0C01 1 TRMS hold value of Sensor 2 0 01 A unsigned R 03 1 ...

Страница 29: ...s 2F00 1 Ongoing min value of all sensor temperatures 0 01 C signed R 03 2F01 1 Ongoing max value of all sensor temperatures 0 01 C signed R 03 2F02 1 Ongoing avg value of all sensor temperatures 0 01 C signed R 03 Digital input signals 2FD0 1 Digital Input 1 bit mask R 03 2FD1 1 Digital Input 2 bit mask R 03 Control registers 3000 1 Operation mode bit mask RW 03 06 3001 1 Sensor physical assignme...

Страница 30: ...n There is no current direction detection for AC For DC measurement the current direction can be read and modified via the corresponding polarity registers for each sensor 3 USB The control unit works as a USB device not host The USB port offers communication acc Modbus RTU via USB CDC RS 232 emulation protocol 4 LED Status Green fast blink The control unit is in boot mode To leave the boot mode p...

Страница 31: ......

Страница 32: ...g Products www abb com lowvoltage 2CCC481014M0201 Rev A Oktober 2018 Copyright 2018 ABB All rights reserved Due to possible changes in design and materials the features and sizes contained in this catalog are to be considered as binding only after confirmation by ABB ...

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