Grundfos CIU 250 Instructions Manual
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Grundfos CIU 250 Instructions Manual

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GRUNDFOS
Grundfos CIU 250
GSM for Grundfos MP 204
Functional profile and user manual

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  • Page 1 GRUNDFOS Grundfos CIU 250 GSM for Grundfos MP 204 Functional profile and user manual...

  • Page 2: Table Of Contents

    Communication Interface Unit 250) for the Grundfos MP 204 Symbols used in this document motor protector. Introduction In the following, the CIU 250 is referred to as "communication About this functional profile interface". Assumptions The data in this document are subject to change without prior Definitions and abbreviations notice.

  • Page 3: System Diagram

    CIU 250 to the Grundfos MP 204 via GENIbus. SubMiniature version A. The CIU 250 solution is a box with a power supply module and Coaxial radio signal connection a CIM 250 module. The CIU 250 can either be mounted on a standard.

  • Page 4: Specifications

    2.5 Specifications The table below gives an overview of the specifications for the Grundfos CIU 250. For further details, please refer to the specific sections of this functional profile. General data Description Comments Ambient humidity 30 % to 95 % Relative, non-condensing.

  • Page 5: Cim 250 Gsm Module

    If the CIU 250 is installed in a metal control cabinet, Grundfos recommends to fit an external GSM antenna. Note Grundfos offers different kinds of antennas. No antenna is supplied with the CIU 250. It has to be ordered separately. Inserting the SIM card Fig. 4 Pos.
  • Page 6 The LED2 must be constantly green, indicating that the CIM 250 has been fitted correctly in the CIU 250. 3.1.4 Configuration For software configuration of the CIU 250, which includes setting of SMS functions and SCADA communication parameters, see "CIM 25X SMS commands" (supplement to installation and operating instructions) on the CD-ROM supplied with the GSM module.

  • Page 7: Leds

    Constantly green. The connection between the CIU 250 and the MP 204 is OK. The CIU 250 must have finished its start-up sequence before the LED2 can be used for status. This means that a Note certain delay may occur before the LED2 turns green after start-up of the CIU 250.

  • Page 8: Functional Profile

    The acknowledgement bit will automatically be cleared to 0 by the CIU 250 when the control bit is cleared by the master device, and a new command can be attempted by raising the control bit again.

  • Page 9: Cim Status Register Block

    Register name Description 00021 GENIbusCRCErrorCnt Holds a CRC error counter for the connection between the CIU 250 and the MP 204. 00022 GENIbusDataErrorCnt Holds a data error counter for the connection between the CIU 250 and the MP 204. 00023 VersionNumber A Grundfos-specific version number.

  • Page 10: Mp 204 Control Register Block

    5.4 MP 204 control register block Registers in this block can be read by means of function codes 0x03 and/or 0x04. They can be written as holding registers with function codes 0x06 and 0x10. The MP 204 will react to its last received command, no matter whether this command was triggered via Modbus, with the R100 remote control or on the MP 204 operator buttons.

  • Page 11: Mp 204 Status Register Block

    00203 SystemMode 1 = Operating (normal condition) 2 = MP 204 fault. 00204 AlarmCode The Grundfos-specific alarm code. See section 10. Grundfos alarm and warning codes. Bit-interpreted warnings Bit 0 = Maximum voltage Bit 1 = Minimum voltage Bit 2 = Maximum line current...
  • Page 12 Address Register name Description Indicates if a ResetAlarm control bit was acknowledged by the device. 0 = No acknowledgement AcknowledgeRegister 1 = Control bit acknowledged. Bit 0: ResetAlarmAck This functionality is only used when AutoAckControlBits is disabled. See section block, address 00005. 5.2 CIM configuration register Indicates if a commanded-trip control bit was acknowledged by the device.

  • Page 13: Mp 204 Data Register Block

    5.6 MP 204 data register block Registers in this block can be read by means of function codes 0x03 and/or 0x04. They are read-only. The table below shows the availability of the data, depending on system configuration. Address Register name Scale Notes 00301...

  • Page 14: Alarm Simulation Register Block 14 0B

    Scale Description This area is for device labelling by the user (SCADA system). 00751- The CIU 250 will not modify this area by itself. UserRegisters unscaled 00800 The user register values are stored in the device and will remain after a power-...

  • Page 15: Gsm Call-Up Connection To Scada System

    Whenever the SCADA system has completed the Modbus communication, it hangs up the line. This is detected by the CIU 250, which also hangs up the line, and the call-up communication session is thereby completed. See fig. 7.

  • Page 16: Gprs Connection

    7.1 What is GPRS and Modbus TCP? GPRS (General Packet Radio Service) is a wireless, "always on" connection that remains active as long as the CIU 250 is within range of the service. With GPRS it is possible to establish a wireless connection to the internet and thus enable a remote connection to a SCADA system computer or another PC application.

  • Page 17: Operation

    2. The CIU 250 attempts to connect to the APN it has been given and requests an IP address. The base station looks through its record of legal SIM cards and finds the IP address (the address associated with this SIM card) to assign to the CIU 250. After the CIU 250 has got the IP address, the connection state changes to "Context active".
  • Page 18 Internet Base station SCADA system GRE router GRE router "Static" IP address PC Tool, etc. Mobile phone CIU 250 with CIM 250 module and SIM card Setup, status and control commands via SMS Fig. 10 GPRS connection via VPN tunnel...

  • Page 19: Fault Finding 19 Crc

    8. Fault finding Faults in the CIU 250 can be detected by observing the status of the two communication LEDs. See the table below and section LEDs. 8.1 LED status CIU 250 connected to an MP 204 Fault (LED status)

  • Page 20: Modbus Gsm/Gprs Communication Faults

    Possible cause Remedy 1. The slave does not respond to a) Configuration or installation error. • Ensure that the CIU 250 has contact with telegrams. the GSM network. The LED1 should be pulsing yellow. If the LED1 signal is incorrect, see section 3.

  • Page 21: Data Item Overview 21 Csd

    PIN code for SCADA systems, etc. 00011 ScadaPinCode unscaled See section 5.3 CIM status register block. CIM status register block 00021 GrundfosCRCErrorCnt unscaled Grundfos GENIbus CRC error counter. 00022 GrundfosDataErrorCnt unscaled Grundfos GENIbus data error counter. 00023 VersionNumber unscaled Version number. 00024 ActualModbusAddress unscaled Actual Modbus slave address.
  • Page 22 Register Identifier Scale Description Three-phase motor: Voltage between L1-L2. 00305 LineVoltageL1L2 0.1 V Single-phase motor: Not available. Three-phase motor: Voltage between L2-L3. 00306 LineVoltageL2L3 0.1 V Single-phase motor: Not available. Three-phase motor: Voltage between L3-L1. 00307 LineVoltageL3L1 0.1 V Single-phase motor: Not available. Three-phase motor: Mean of the line voltages.
  • Page 23 WarningBits2 (register 00206). User register block This area is for device labelling by the user (SCADA system). 00751- The CIU 250 will not modify this area by itself. UserRegisters unscaled 00800 The user register values are stored in the device and will...

  • Page 24: Grundfos Alarm And Warning Codes

    10. Grundfos alarm and warning codes This is a general Grundfos alarm and warning code list. Not all codes are available in the MP 204. Code Description Code Description Code Description Gas in pump head, deaerating Leakage current Internal communication fault...
  • Page 25 Code Description Code Description Code Description Start capacitor, low Signal fault, extra temperature Soft pressure build-up timeout (single-phase motors) sensor Run capacitor, low Signal fault, general-purpose Pilot pump alarm (single-phase motors) sensor Motor temperature 3 Alarm, general-purpose sensor Unknown sensor type (Pt100, t_mo3) high Bearing temperature high (Pt100),...

  • Page 26: Modbus Telegram Overview

    11. Modbus telegrams and function codes 11.1 Modbus telegram overview The maximum size of a Modbus RTU telegram is 256 bytes. Telegrams must be separated by a silent interval of at least 3.5 character times. The standard Modbus RTU telegram format is shown in the table below: Slave address Function code...

  • Page 27: Read Holding Registers (0X03) 27 Gprs

    11.2 Read holding registers (0x03) This function is used for reading holding registers from the slave. The request telegram specifies the starting address (the address of the first register to be read) and the number of holding registers to read. In the telegram, register addresses start from zero, meaning that registers numbered 1-16 are addressed as 0-15. The register data in the response message are packed two bytes per register.

  • Page 28: Write Multiple Registers (0X10)

    The response returns the function code, starting address and quantity of registers written. 11.6 Diagnostics (0x08) This function provides a test for checking the communication system between the master and the Grundfos slave. It contains a single-byte subcode to identify the test to be performed.

  • Page 29: Diagnostics Register Interpretation Gre

    11.7 Diagnostics register interpretation The diagnostics register is interpreted as follows: Description Internal communication failure (with the Grundfos CIU 250). EEPROM self-test failed (the test is carried out when the system is booted). Grundfos CIU 250 not supported. Modbus address offset is different from default value, i.e. it differs from 0.

  • Page 30: Modbus Telegram Examples

    12. Modbus telegram examples 12.3 Tripping the MP 204 This section shows how to set the control bit that trips the CRC fields are not shown in the following MP 204. Note examples. In the example, slave address 0x01 is used. To trip the MP 204, the ControlRegister (register address 00101, The Modbus data model states that registers bit 1) must be raised.
  • Page 31 Telefax: +64-9-415 3250 BOMBAS GRUNDFOS DO BRASIL Turkey Av. Humberto de Alencar Castelo Branco, Hungary Norway GRUNDFOS POMPA San. ve Tic. Ltd. Sti. GRUNDFOS Hungária Kft. GRUNDFOS Pumper A/S Gebze Organize Sanayi Bölgesi CEP 09850 - 300 Park u. 8 Strømsveien 344...
  • Page 32 Being responsible is our foundation Thinking ahead makes it possible Innovation is the essence 97693501 0710 The name Grundfos, the Grundfos logo, and the payoff Be–Think–Innovate are registrated trademarks owned by Grundfos Management A/S or Grundfos A/S, Denmark. All rights reserved worldwide. www.grundfos.com...

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