Phoenix Contact SCK-C-MODBUS User Manual
  1. Manuals
  2. Brands
  3. Phoenix Contact Manuals
  4. Measuring Instruments
  5. SCK-C-MODBUS
  6. User manual

Phoenix Contact SCK-C-MODBUS User Manual

Solarcheck string monitoring
Hide thumbs
Table of Contents

Advertisement

Quick Links

Solarcheck string monitoring
User manual

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the SCK-C-MODBUS and is the answer not in the manual?

Questions and answers

Related Manuals for Phoenix Contact SCK-C-MODBUS

Summary of Contents for Phoenix Contact SCK-C-MODBUS

  • Page 1 Solarcheck string monitoring User manual...
  • Page 2 User manual Solarcheck string monitoring 2013-06-14 Designation: UM EN Solarcheck String Monitoring Revision: This user manual is valid for: Designation Order No. SCK-C-MODBUS 2901674 SCK-M-I-8S-20A 2903241 SCK-M-I-4S-20A 2903242 SCK-M-U-1500V 2903591 PHOENIX CONTACT 105608_en_00...
  • Page 3 How to contact us Internet Up-to-date information on Phoenix Contact products and our Terms and Conditions can be found on the Internet at: phoenixcontact.com Make sure you always use the latest documentation.
  • Page 4 The receipt of technical documentation (in particular user documentation) does not consti- tute any further duty on the part of Phoenix Contact to furnish information on modifications to products and/or technical documentation. You are responsible to verify the suitability and intended use of the products in your specific application, in particular with regard to observ- ing the applicable standards and regulations.

  • Page 5: Table Of Contents

    Representation of voltage values at the analog output ......28 4.2.2 Step response time ................29 Power supply ....................... 29 Technical data ..................... 30 SCK-C-MODBUS Solarcheck communication module ............31 Function....................... 31 Data acquisition and transfer ................31 5.2.1 SCK-internal communication cycle ............33 5.2.2...
  • Page 6 6.4.3 Cable lengths and conductor cross sections ........48 Installing the SCK-C-MODBUS communication module........49 6.5.1 Addressing the SCK-C-MODBUS communication module ....49 6.5.2 Connecting the SCK-C-MODBUS communication module ....52 Installing SCK-M-I-xx current measuring modules..........54 Installing the SCK-M-U-1500V voltage measuring module ......... 57 6.7.1...
  • Page 7 Table of contents Appendix ..........................85 Register tables ....................85 Accessories....................... 110 Appendix for document lists....................111 List of figures ..................... 111 List of tables ...................... 115 105608_en_00 PHOENIX CONTACT...
  • Page 8 Solarcheck family PHOENIX CONTACT 105608_en_00...

  • Page 9: Introduction

    Product overview Solarcheck is a modular monitoring system for photovoltaic systems. It consists of a com- munication module (SCK-C-MODBUS, Order No. 2901674) and various measuring mod- ules for current and voltage measurement. The communication module collects the data from all connected measuring modules and forwards it to a higher-level controller via Modbus RTU using an RS-485 connection.

  • Page 10: General Safety Notes

    • The devices are only to be used as described here. Phoenix Contact accepts no liability if the devices are used for anything other than their designated use. Any use other than the designated use may lead to malfunction or irreversible damage of the devices.

  • Page 11: General Notes On Pv Systems

    Inverters with transformers, for example, can be arranged without grounding as well as with grounding on the negative or positive side. 105608_en_00 PHOENIX CONTACT...

  • Page 12: Example Diagram Of Generator With Transformer Inverter

    This is particularly important if devices are incorporated in the system which are only intended for IT systems, i.e., they have no ground connection. Example diagram of generator with transformer inverter H-Bridge Filter Filter – 50 Hz Figure 2-4 Example diagram of generator with transformer inverter PHOENIX CONTACT 105608_en_00...
  • Page 13 Example diagram of generator with transformer inverter and grounding on the positive side Example diagram of generator with transformer inverter and grounding on the neg- ative side – Figure 2-6 Example diagram of generator with transformer inverter and grounding on the negative side 105608_en_00 PHOENIX CONTACT...

  • Page 14: Example Diagram Of Generator With Transformerless Inverter

    PV strings are connected together in parallel and appropriate protective devices and moni- toring devices are provided. When creating your PV system, observe the necessary standards for planning and installing PV systems, such as IEC 60364-7-712, together with corresponding references and equiv- alent standards. PHOENIX CONTACT 105608_en_00...

  • Page 15: Data Collection In Large Pv Systems

    In order to avoid any influence on signals and data cables, corresponding standards regard- ing the installation of data cables in the vicinity of power cables must be observed. Standard DIN EN 50174 provides comprehensive guidelines on planning and installing communica- tion cables in the vicinity of power cables. 105608_en_00 PHOENIX CONTACT...
  • Page 16 Solarcheck family PHOENIX CONTACT 105608_en_00...

  • Page 17: Solarcheck String Current Measurement With Sck-M-I

    (e.g., installation in a distributor box or control cabinet). Function Table 3-1 Function matrix for current measuring modules SCK-M- Digital I-8S-20A SCK- μC U-IN 0...10V – I-IN SCK-M- I-4S-20A SCK- Digital I-IN 105608_en_00 PHOENIX CONTACT...

  • Page 18: Current Measurement

    As a result, reverse current detec- tion is integrated in the Solarcheck current measuring devices. PHOENIX CONTACT 105608_en_00...

  • Page 19: Valid Value Range For Current Measurement

    The deviation occurs above and below the production-related compensation temperature of 20°C. Example: Ambient temperature: 30°C Deviation of measurement ±1% + (±0.02% x (T – T Ambient Compensation Deviation at T = ±1.2% of measuring range final value (±1.2% of 20 A = ±240 mA) 30°C 105608_en_00 PHOENIX CONTACT...

  • Page 20: Digital Input

    1500V voltage measuring module (Order No. 2903591). The maximum distance between current and voltage measuring modules is 0.5 m. The value range is defined as -2000 … 12000 (for -2 ... 12 V). For further details on voltage measurement, refer to Section 5.2. PHOENIX CONTACT 105608_en_00...

  • Page 21: Internal Temperature Measurement

    Data acquisition and transfer The acquired data is transferred to the SCK-C-MODBUS Solarcheck communication mod- ule via an internal communication cycle. A proprietary protocol is used for transmission. This protocol also ensures that power is supplied to the measuring module. For this reason, it is only possible to operate the current measuring modules via the corresponding SCK-C- MODBUS Solarcheck communication module (Order No.

  • Page 22: Power Supply

    Output voltage range 24 V supply for 2903591 Cable length (for 0.15 mm²) 0.5 m, maximum Cable type Twisted, shielded Data interface for SCK-C-MODBUS Cable length (for 0.15 mm²) ≤ 300 m Cable length (for 1.5 mm²) ≤ 500 m Cable type...
  • Page 23 Humidity at 25°C, no condensation ≤ 95% Altitude ≤ 2000 m Installation on DIN rail 35 mm (DIN EN 50022) Pollution degree Conformance/approvals Conformance CE-compliant Conformance with EMC Directive 2004/108/EC and Low Volt- age Directive 2006/95/EC Referenced standard EN 61010-01:2011-7 105608_en_00 PHOENIX CONTACT...
  • Page 24 Solarcheck family PHOENIX CONTACT 105608_en_00...

  • Page 25: Solarcheck String Voltage Measurement With The Sck-M-U-1500V

    The difference between U+ and U- must not exceed 1500 V. Negative differential mode volt- ages are not permitted. It is imperative that the PE contact is connected, as in addition to its safety-related function it is also used as the reference potential for measurement. 105608_en_00 PHOENIX CONTACT...
  • Page 26 8.93 V 9.47 V 10.00 V 8.93 V 9.47 V 10.00 V 9.47 V 10.00 V 10.00 V The inner range represents the respective analog value that is issued by the device under the respective voltage conditions. PHOENIX CONTACT 105608_en_00...

  • Page 27: Note On The Parallel Connection Of Multiple Voltage Measuring Devices In A System

    (+  PE) voltage measurements 20 MΩ 20 MΩ 20 MΩ 10 MΩ 20 MΩ 5 MΩ 20 MΩ 2.5 MΩ 20 MΩ 1.25 MΩ 20 MΩ 0.625 MΩ 20 MΩ 0.313 MΩ 20 MΩ 0.156 MΩ … 105608_en_00 PHOENIX CONTACT...

  • Page 28: Data Acquisition And Transfer

    The analog output of the voltage measuring module can be connected directly to the 0 … 10 V input of the corresponding SCK-M-I-8S-20A Solarcheck current measuring mod- ule. The measured values are then available via the SCK-C-MODBUS Solarcheck commu- nication module via RS-485 Modbus RTU.

  • Page 29: Step Response Time

    In this case, the shortest possible retrieval interval depends on the refresh cycle of the Solarcheck devices. The fastest possible cycle time between SCK-C-MODBUS and SCK-M-I-8S-20A is 2 s. For further details on the internal communication cycle, refer to Sec- tion 5.2.1 on page 33.

  • Page 30: Technical Data

    Humidity at 25°C, no condensation ≤ 95% Altitude ≤ 2000 m Installation on DIN rail 35 mm (DIN EN 50022) Pollution degree Conformance/approvals Conformance CE-compliant Conformance with EMC Directive 2004/108/EC and Low Voltage Directive 2006/95/EC Referenced standard EN 61010-01:2011-7 PHOENIX CONTACT 105608_en_00...

  • Page 31: Sck-C-Modbus Solarcheck Communication Module

    GND1 GND1 Figure 5-1 Block diagram of the SCK-C-MODBUS Solarcheck communication module Data acquisition and transfer The Solarcheck communication module acquires the data from all Solarcheck measuring modules connected in parallel. Each measuring module is connected to a separate data input (T1…T8).

  • Page 32: Structure Of The Solarcheck Communication Network

    SOLARCHECK to SOLARCHECK measuring devices communication device (measuring data) ILC 150 ETH Order-No.: 2985330 HW/FW: 00/100 MAC Addr.: 00.A0.48.04.09.C0 Energy AUTOMATIONWORX MRESET STOP RUN/PROG Data RESET Data LINK Compact controller Figure 5-3 Schematic diagram of Solarcheck communication PHOENIX CONTACT 105608_en_00...

  • Page 33: Sck-Internal Communication Cycle

    A unique address is set on the communication module for module and data assignment. The DIP switches inside the device are used for this. The procedure for setting the module address is described in “Installing the SCK-C-MODBUS communication module” on page 49.
  • Page 34 43 53 2D 4B 2D 43 4F 4D 42 44 53 55 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  Module designation in ASCII code: “SCK-C-MODBUS” (occupies a maximum of 32 characters) 97 3A ...

  • Page 35: Register Addresses

    SCK-C-MODBUS Solarcheck communication module 5.2.3 Register addresses 5.2.3.1 Structure of the register areas Table 5-2 Structure of the register areas Modbus address Contents Designation HEX [DEC] 0000..005D Data register Rev. 02 Copy of the data register for de- [0..93] vice revision 02 to ensure com- patibility 0080..00B0...

  • Page 36: Table 10-1: Structure Of The Status Register

    HEX [DEC] 0431..0460 MI0…MI47 Module information data SCK [1073..1120] channel 8 (device at T8) 0480..04B0 Status register, PD0…PD47 Process data SCK-C-MODBUS [1152..1200] device 04B1..04E0 MI0…MI47 Module information data SCK- [1201..1248] C-MODBUS device The status register is always stored in the first register of the respective channel.

  • Page 37: Power Supply

    SCK-C-MODBUS Solarcheck communication module 5.2.3.4 Compatibility with previous modules The Revision 03 Solarcheck communication module is backwards compatible with its pre- decessor (Revision 02). Furthermore, the device is compatible with all existing Solarcheck measuring modules, including devices from the previous generation (SCK-M-8S-20A, Order No.

  • Page 38: Technical Data

    Solarcheck family Technical data Communication SCK-C-MODBUS (Order No. 2901674) Supply Supply voltage 24 V DC (-10% … +25%) Typical internal power consumption 22 mA Maximum internal power consumption 45 mA Maximum current consumption 800 mA Data interface for SCK bus...

  • Page 39: Installation

    Installation Installation Connection description SCK-C-MODBUS (Order No. 2901674) Connection terminal blocks for SCK measuring module T1 ... T4 Connection terminal blocks for SCK measuring module T5 ... T8 Connection terminal blocks for +24 V DC/GND1 power supply Connection terminal blocks for RS-485...
  • Page 40 (D_IN) Connection terminal blocks for commu- nication cable (SCK BUS) Green LED status indicator, TX - transmit data Green LED status/diagnostics indicator, P - power supply, error diagnostics Block diagram Digital SCK- μC U-IN 0...10V – I-IN PHOENIX CONTACT 105608_en_00...
  • Page 41 (SCK BUS) Green LED status indicator, S T R IN G C U R R E N TX - transmit data Green LED status/diagnostics indicator, P - power supply, error diagnostics Block diagram SCK- Digital I-IN 105608_en_00 PHOENIX CONTACT...
  • Page 42 Connection terminal blocks for +24 V/0 V power supply Connection terminal blocks for analog voltage output 2 ... 10 V OUT 2 .. Block diagram U_OUT 0...1500 V DC P_IN 24 V Important installation instructions: 1500 V DC!!! PHOENIX CONTACT 105608_en_00...

  • Page 43: Measuring Category And Notes On Insulation

    Installation Measuring category and notes on insulation The SCK-C-MODBUS communication module is assigned to measuring category CAT II according to DIN EN 61010-2-30 and must therefore not be used in other category areas. This means that the communication module is designed for use in low-voltage data pro- cessing.

  • Page 44: Cabling

    Figure 6-1 Distances between data and power cables Option a: installation of data (D) and power (P) cables at distance (s) Option b: installation of data (D) and power (P) cables in separately grounded cable ducts PHOENIX CONTACT 105608_en_00...
  • Page 45 The left shows the differential signal (V) and the data quality (D) with shielding at both ends; the right shows a differential signal affected by inductive interference coupling. This leads to poor data quality. Communication is error-prone or not even possible, the device could be destroyed. 105608_en_00 PHOENIX CONTACT...
  • Page 46 ME-SAS shield connection clamp (Order No. 2853899). – Remove the shielding only a few cm before the connection terminal block on the device. – Untwist the twisted pairs only a few cm before the connection terminal block on the de- vice. PHOENIX CONTACT 105608_en_00...
  • Page 47 , twisted pair, single shielding, maximum length of 0.5 m Shielding Connect both ends of the shielding to ground. Table 6-6 Voltage connection cabling recommendations Voltage connection Cable ≥ 0.75 mm , double insulated (appropriate to system volt- age), short-circuit-proof and ground-fault-proof installation 105608_en_00 PHOENIX CONTACT...

  • Page 48: Material Requirements

    Furthermore, an on-site check should always be per- formed to determine whether the required supply voltage is available at the input of the So- larcheck devices under all operating conditions. PHOENIX CONTACT 105608_en_00...

  • Page 49: Installing The Sck-C-Modbus Communication Module

    Installing the SCK-C-MODBUS communication module 6.5.1 Addressing the SCK-C-MODBUS communication module The device may only be opened to set the required address or baud rate. The communication module may only be addressed when disconnected from the power supply and from the RS-485 and SCK bus cables.
  • Page 50 2 = 16 2 = 32 2 = 64 2 = 128 Place the PCB onto the guide rails and carefully reinsert it in the housing as far as it will go. Snap the housing cover into place. PHOENIX CONTACT 105608_en_00...
  • Page 51 Please note that fast baud rates are generally more susceptible to interference. The default parity and stop bit settings can be changed using DIP switches S5 and S6 and DIP switch S7. Table 6-10 Setting the parity Parity Even None Table 6-11 Setting the stop bits Stop bits 105608_en_00 PHOENIX CONTACT...

  • Page 52: Connecting The Sck-C-Modbus Communication Module

    Solarcheck family 6.5.2 Connecting the SCK-C-MODBUS communication module Snap the device onto a 35 mm DIN rail according to DIN EN 50022 in the control cabinet. Install the power supply, RS-485 communication, and the Solarcheck measuring devices as per the connection description in Section 6.1 on page 39 and the following connection dia-...
  • Page 53 1200 m. Follow the cabling recommendations in “Cabling” on page 44 and terminate the start and end of the network following the established procedure for RS-485 net- works. 1...31 MODBUS slaves SCK-C-MODBUS SCK-C-MODBUS Controller A B GND2 A B GND2...

  • Page 54: Installing Sck-M-I-Xx Current Measuring Modules

    PV systems, see relevant references, e.g., in IEC 60364-7-712 or equiv- alent standards. Observe the correct current flow direction for DC current measurement in the measuring module. As a guide, the required current flow direction is indicated with an arrow. PHOENIX CONTACT 105608_en_00...

  • Page 55: Connection Diagram For Sck-M-I-8S-20A

    Installation Next, install SCK communication, the digital input, and the analog interface as per the con- nection description in 6.1 on page 39 and the following connection diagram: SCK-C-MODBUS SCK-M-I-8S-20A SCK-M-U-1500V P_OUT P_IN GND2 GND1 POWER 0…10V 2…10V OUT +24V...

  • Page 56: Digital Input

    NOTE: Risk of damage to equipment Only wire floating switch contacts directly to the digital input. The digital signal input must not be wired to an active signal. L– / VAL-MS... SCK BUS D_IN Figure 6-9 Digital input connection PHOENIX CONTACT 105608_en_00...

  • Page 57: Installing The Sck-M-U-1500V Voltage Measuring Module

    Observe all statutory require- ments for live working. 1500 V DC!!! Figure 6-11 High-voltage measurement connection The module is usually connected to the corresponding 8-channel current measuring module (SCK-M-I-8S-20A, Order No. 2903241). 105608_en_00 PHOENIX CONTACT...

  • Page 58: Pe Connection

    It is imperative that the PE contact is connected correctly, as in addition to its safety-re- lated function it is also used as the reference potential for measurement. Operation without PE connection can result in damage to the device. PHOENIX CONTACT 105608_en_00...

  • Page 59: Connecting The Measuring Module To The Sck-M-I-8S-20A Solarcheck Current Measuring Module

    (P_OUT). Use twisted and shielded cables for all signal and supply cables to avoid electromagnetic interference from the PV generator (e.g., via the string or bus cables). Ground the shield. 105608_en_00 PHOENIX CONTACT...

  • Page 60: Connecting The Measuring Module Outside Of The Solarcheck Device Range

    PV systems with voltages up to 1500 V DC. The specified measuring accuracy applies for the 100 ... 1500 V DC measuring range. Snap the device onto a 35 mm DIN rail according to DIN EN 50022 in the control cabinet. PHOENIX CONTACT 105608_en_00...

  • Page 61: Power Supply For The Solarcheck Devices

    3. This calculation applies if 24 V is supplied. Otherwise, please refer to the current consumption diagrams for the modules. U = 21,6…30 V P [mW] I [mA] U [V] Figure 6-15 Performance characteristics of the SCK-C-MODBUS communication module without connected measuring devices 105608_en_00 PHOENIX CONTACT...

  • Page 62: Performance Characteristics Of The Communication Module

    24 V DC. If the input voltage drops, current consumption may increase up to the specified maximum value. Any further deviation results in device shutdown. Example: 1 x SCK-C-MODBUS with 8 connected SCK-M-I-8S-20A modules each of which includes voltage measurement via SCK-M-U-1500V Table 6-12...

  • Page 63: Design Of A Separate Power Supply For The Sck-M-U-1500V Voltage Measuring Module

    8 mA. The maximum current consumption is 65 mA. The maximum current consumption only occurs if the value falls significantly below the minimum input voltage. U = 21,6…30 V P [mW] I [mA] U [V] Figure 6-17 Performance characteristics of the voltage measuring module (SCK-M-U- 1500V) 105608_en_00 PHOENIX CONTACT...
  • Page 64 Solarcheck family PHOENIX CONTACT 105608_en_00...

  • Page 65: Startup

    Internal error, connection error 1.4 Hz Communication error 2.8 Hz Internal error Tx: Send data (green) Sending data No communication Rx: Receive data (green) Receiving data No communication LED flashing ... Hz LED on LED off Figure 7-1 LED indicators 105608_en_00 PHOENIX CONTACT...
  • Page 66 Solarcheck family PHOENIX CONTACT 105608_en_00...

  • Page 67: Additional Functions

    Energy-saving mode is either stopped automatically after the set time has elapsed or by manually setting the time value in the register to “0” via the controller. The devices then start automatically and run as described for startup in 7 on page 65. 105608_en_00 PHOENIX CONTACT...

  • Page 68: Locate Function

    The minimum value is 5 s (5 decimal) and the maximum value is 18.2 hrs (65535 decimal). 50 s +24V GND1 GND1 +24V GND1 GND1 +24V GND1 GND1 GND2 GND2 GND2 GND2 GND2 GND2 # 50 s RS-485 Bus Figure 8-1 Schematic view of the locate function PHOENIX CONTACT 105608_en_00...

  • Page 69: System Calibration

    = 6,1 A PV 3 6,3 A (-0,2 A) = 6,1 A = 0,2 A PV 2 PV 2 6,1 A (-0 A) = 6,1 A = 0,0 A PV 3 PV 3 Figure 8-2 System calibration 105608_en_00 PHOENIX CONTACT...
  • Page 70 Solarcheck family PHOENIX CONTACT 105608_en_00...

  • Page 71: Installation Examples

    Solarcheck is a very flexible system which can be effectively incorporated into many system designs, making inexpensive solutions possible. Example 1 SCK-C-MODBUS installed centrally in the inverter station. Solarcheck current mea- suring module(s) without voltage measurement installed in the string combiner box in the PV field.

  • Page 72: Example 2

    Solarcheck family Example 2 SCK-C-MODBUS installed centrally in the inverter station. Solarcheck current mea- suring module(s) and voltage measuring modules installed in the string combiner box in the PV field. If the voltage is to be acquired at string level, positioning the voltage measuring module in the string combiner box is advised.

  • Page 73: Example 3

    Installation examples Example 3 SCK-C-MODBUS installed centrally in the inverter station. Solarcheck current mea- suring module(s) installed in the string combiner box in the PV field. Higher-level voltage measurement for each system segment. As already indicated under Example 2, the typical parallel connection of strings in large PV systems means that the voltage in a system segment is usually the same.

  • Page 74: Example 4

    Solarcheck family Example 4 SCK-C-MODBUS installed in the communication box. Solarcheck current measur- ing module(s) installed in the string combiner box in the PV field. Due to the system design, a distributed arrangement of the communication modules in a system may also be worthwhile. The use of a communication box is recommended here, so that the power supply and any other communication units (controller, wireless modules, RS- 485/Ethernet converter, etc.) can be housed in this communication box.

  • Page 75: 10 Troubleshooting

    In the event of errors or malfunction during startup or operation, this table can be used to perform initial diagnostics locally and to possibly even remove the error cause directly. If troubleshooting using this table is not possible, please contact your Phoenix Contact repre- sentative.

  • Page 76: Diagnostics And Error Removal

    Solarcheck family 10.1 Diagnostics and error removal Table 10-2 Scenario 1: SCK-C-MODBUS Device/ Status register LED indicator error description SCK-C-MODBUS (2901674) Entry “1” in bit 4 of the low POWER LED: byte flashing (1.4 Hz) There is no data from one or more (0001 0000) connected measuring modules.

  • Page 77: Table 10-4 Scenario 3: Sck-C-Modbus

    Troubleshooting Table 10-4 Scenario 3: SCK-C-MODBUS Device/ Status register LED indicator error description SCK-C-MODBUS (2901674) Entry “1” in bit 6 of the POWER LED: low byte flashing (1.4 Hz) There is no data or incorrect data from (0100 0000) and/or...

  • Page 78: Table 10-6 Scenario 5: Sck-C-Modbus

    Solarcheck family Table 10-6 Scenario 5: SCK-C-MODBUS Device/ Status register LED indicator error description SCK-C-MODBUS (2901674) No entry POWER LED: flashing (2.8 Hz) There is no data from the communication module and the connected measuring modules. Cause An internal error has occurred.

  • Page 79: Table 10-8 Scenario 7: Sck-M-I

    1. Install the module the other way. Route the string cables from the other side through the holes in the device (see Section 6.6 on page 54). The current direction is indicat- ed on the device with an arrow. 105608_en_00 PHOENIX CONTACT...

  • Page 80: Table 10-10 Scenario 9: Sck-M-I-8S-20A

    Cause The value is outside the valid voltage range of the module. Measures 1. Make sure that the value does not go outside the valid voltage range of the device (see Section 4.1.1 on page 25) . PHOENIX CONTACT 105608_en_00...

  • Page 81: Table 10-12 Scenario 11: Sck-M-I-8S-20A / Other Analog Device

    A cable break has occurred or there is a faulty connection between the SCK-M-U-1500V and the SCK-M-I-8S-20A or controller. This error can be detected with the “live zero” sig- nal. Measures 1. Check the connection between the devices and remove the error. 105608_en_00 PHOENIX CONTACT...

  • Page 82: Additional Notes

    Acti- Baud stop used mode vate rate bits parity 9600 14400 19200 38400 57600 76800 115200 230400 1200 2400 4800 7200 None Even 1 stop 2 stop bits 1 – ON 0 – OFF X – either PHOENIX CONTACT 105608_en_00...
  • Page 83 Solarcheck devices. Otherwise invalid values may occur on the analog input side. – In the event of communication errors, the communication module is set to the “Timeout” state after 10 s. 105608_en_00 PHOENIX CONTACT...
  • Page 84 Solarcheck family PHOENIX CONTACT 105608_en_00...

  • Page 85: A Appendix

    Range 10 contains module information (MI) and process data (PD) for the SCK-C-MOD- BUS module. All the data can be read. Some of the data can be written as well (see “Locate function” on page 68 and “Energy-saving mode” on page 67, for example). 105608_en_00 PHOENIX CONTACT...

  • Page 86: Table A-1 Illustration Of The Register Table For Reading 2901672 (Modbus Address 0000H

    SCK channel 7 Ix100 [A] voltage current 3 0016 SCK channel 3 Bit mask 0046 SCK channel 7 Ix100 [A] status current 4 0017 SCK channel 3 Ix100 [A] 0047 SCK channel 7 Ix100 [A] current 1 current 5 PHOENIX CONTACT 105608_en_00...
  • Page 87 SCK channel 5 Bit mask 005C Ready for opera- status tion 002D SCK channel 5 Ix100 [A] 005D SCK-C module ID current 1 002E SCK channel 5 Ix100 [A] current 2 002F SCK channel 5 Ix100 [A] current 3 105608_en_00 PHOENIX CONTACT...

  • Page 88: Table A-2 Register Contents For The Sck-C-Modbus

    Solarcheck family Table A-2 Register contents for the SCK-C-MODBUS Modbus address (HEX) Designation 0480 SCK-C PD0 (short circuit) 0481 SCK-C PD1 (not connected) 0482 SCK-C PD2 (communication error) 0483 SCK-C PD3 (ready for operation) 0484 SCK-C PD4 (switched off) 0490 SCK-C PD16 (avg.

  • Page 89: Table A-4 Sck-M-I-4S-20A Register Contents

    Bit mask Digital input USIGN16 0..1 Current channel 1 INT16 -250..2500 A/100 Current channel 2 -250..2500 A/100 Current channel 3 -250..2500 A/100 Current channel 4 -250..2500 A/100 Temperature -50..100 °C PD6…PD47 Unused Module ID USIGN16 Serial number USIGN64 105608_en_00 PHOENIX CONTACT...
  • Page 90 Table A-4 SCK-M-I-4S-20A register contents [...] Index Designation Data type Value range Unit Module name (32 charac- 32x CHAR “SC” ters) “K-” “M-” “I-” “4S” MI10 “-2” MI11 “0A” MI12 MI13 MI14 MI15 MI16 MI17 MI18 MI19 MI20 PHOENIX CONTACT 105608_en_00...
  • Page 91 SCK channel 4 status 0051 Read-only SCK channel 8 current 4 0022 Read-only SCK channel 4 current 1 0052 Read-only SCK channel 8 current 5 0023 Read-only SCK channel 4 current 2 0053 Read-only SCK channel 8 current 6 105608_en_00 PHOENIX CONTACT...

  • Page 92: Table A-5 Register Entries For Connecting Current Measuring Module 2901672

    002C Read-only SCK channel 5 status 005C Read-only Ready for operation 002D Read-only SCK channel 5 current 1 005D Read-only SCK-C module ID 002E Read-only SCK channel 5 current 2 002F Read-only SCK channel 5 current 3 PHOENIX CONTACT 105608_en_00...

  • Page 93: Table A-6 Range 2: Sck Channel 1 (Modbus Address 0080H

    SCK channel 1 MI35 00A5 Read-only SCK channel 1 PD36 00D5 Read-only SCK channel 1 MI36 00A6 Read-only SCK channel 1 PD37 00D6 Read-only SCK channel 1 MI37 00A7 Read-only SCK channel 1 PD38 00D7 Read-only SCK channel 1 MI38 105608_en_00 PHOENIX CONTACT...
  • Page 94 SCK channel 1 PD44 00DD Read-only SCK channel 1 MI44 00AE Read-only SCK channel 1 PD45 00DE Read-only SCK channel 1 MI45 00AF Read-only SCK channel 1 PD46 00DF Read-only SCK channel 1 MI46 00E0 Read-only SCK channel 1 MI47 PHOENIX CONTACT 105608_en_00...

  • Page 95: Table A-7 Range 3: Sck Channel 2 (Modbus Address 0100H

    SCK channel 2 MI35 0125 Read-only SCK channel 2 PD36 0155 Read-only SCK channel 2 MI36 0126 Read-only SCK channel 2 PD37 0156 Read-only SCK channel 2 MI37 0127 Read-only SCK channel 2 PD38 0157 Read-only SCK channel 2 MI38 105608_en_00 PHOENIX CONTACT...
  • Page 96 SCK channel 2 PD44 015D Read-only SCK channel 2 MI44 012E Read-only SCK channel 2 PD45 015E Read-only SCK channel 2 MI45 012F Read-only SCK channel 2 PD46 015F Read-only SCK channel 2 MI46 0160 Read-only SCK channel 2 MI47 PHOENIX CONTACT 105608_en_00...

  • Page 97: Table A-8 Range 4: Sck Channel 3 (Modbus Address 0180H

    SCK channel 3 MI35 01A5 Read-only SCK channel 3 PD36 01D5 Read-only SCK channel 3 MI36 01A6 Read-only SCK channel 3 PD37 01D6 Read-only SCK channel 3 MI37 01A7 Read-only SCK channel 3 PD38 01D7 Read-only SCK channel 3 MI38 105608_en_00 PHOENIX CONTACT...
  • Page 98 SCK channel 3 PD44 01DD Read-only SCK channel 3 MI44 01AE Read-only SCK channel 3 PD45 01DE Read-only SCK channel 3 MI45 01AF Read-only SCK channel 3 PD46 01DF Read-only SCK channel 3 MI46 01E0 Read-only SCK channel 3 MI47 PHOENIX CONTACT 105608_en_00...

  • Page 99: Table A-9 Range 5: Sck Channel 4 (Modbus Address 0200H

    SCK channel 4 MI35 0225 Read-only SCK channel 4 PD36 0255 Read-only SCK channel 4 MI36 0226 Read-only SCK channel 4 PD37 0256 Read-only SCK channel 4 MI37 0227 Read-only SCK channel 4 PD38 0257 Read-only SCK channel 4 MI38 105608_en_00 PHOENIX CONTACT...
  • Page 100 SCK channel 4 PD44 025D Read-only SCK channel 4 MI44 022E Read-only SCK channel 4 PD45 025E Read-only SCK channel 4 MI45 022F Read-only SCK channel 4 PD46 025F Read-only SCK channel 4 MI46 0260 Read-only SCK channel 4 MI47 PHOENIX CONTACT 105608_en_00...

  • Page 101: Table A-10 Range 6: Sck Channel 5 (Modbus Address 0280H

    SCK channel 5 MI35 02A5 Read-only SCK channel 5 PD36 02D5 Read-only SCK channel 5 MI36 02A6 Read-only SCK channel 5 PD37 02D6 Read-only SCK channel 5 MI37 02A7 Read-only SCK channel 5 PD38 02D7 Read-only SCK channel 5 MI38 105608_en_00 PHOENIX CONTACT...
  • Page 102 SCK channel 5 PD44 02DD Read-only SCK channel 5 MI44 02AE Read-only SCK channel 5 PD45 02DE Read-only SCK channel 5 MI45 02AF Read-only SCK channel 5 PD46 02DF Read-only SCK channel 5 MI46 02E0 Read-only SCK channel 5 MI47 PHOENIX CONTACT 105608_en_00...

  • Page 103: Table A-11 Range 7: Sck Channel 6 (Modbus Address 0300H

    SCK channel 6 MI35 0325 Read-only SCK channel 6 PD36 0355 Read-only SCK channel 6 MI36 0326 Read-only SCK channel 6 PD37 0356 Read-only SCK channel 6 MI37 0327 Read-only SCK channel 6 PD38 0357 Read-only SCK channel 6 MI38 105608_en_00 PHOENIX CONTACT...
  • Page 104 SCK channel 6 PD44 035D Read-only SCK channel 6 MI44 032E Read-only SCK channel 6 PD45 035E Read-only SCK channel 6 MI45 032F Read-only SCK channel 6 PD46 035F Read-only SCK channel 6 MI46 0360 Read-only SCK channel 6 MI47 PHOENIX CONTACT 105608_en_00...

  • Page 105: Table A-12 Range 8: Sck Channel 7 (Modbus Address 0380H

    SCK channel 7 MI35 03A5 Read-only SCK channel 7 PD36 03D5 Read-only SCK channel 7 MI36 03A6 Read-only SCK channel 7 PD37 03D6 Read-only SCK channel 7 MI37 03A7 Read-only SCK channel 7 PD38 03D7 Read-only SCK channel 7 MI38 105608_en_00 PHOENIX CONTACT...

  • Page 106: Table A-13 Range 9: Sck Channel 8 (Modbus Address 0400H

    SCK channel 8 MI20 0416 Read-only SCK channel 8 PD21 0446 Read-only SCK channel 8 MI21 0417 Read-only SCK channel 8 PD22 0447 Read-only SCK channel 8 MI22 0418 Read-only SCK channel 8 PD23 0448 Read-only SCK channel 8 MI23 PHOENIX CONTACT 105608_en_00...
  • Page 107 SCK channel 8 PD44 045D Read-only SCK channel 8 MI44 042E Read-only SCK channel 8 PD45 045E Read-only SCK channel 8 MI45 042F Read-only SCK channel 8 PD46 045F Read-only SCK channel 8 MI46 0460 Read-only SCK channel 8 MI47 105608_en_00 PHOENIX CONTACT...

  • Page 108: Table A-14 Range 10: Sck-C-Modbus (Modbus Address 0480H

    Solarcheck family A 1.11 Address area range 10 Table A-14 Range 10: SCK-C-MODBUS (Modbus address 0480h..04E0h) Modbus Access Designation Modbus Access Designation address address (HEX) (HEX) 0480 Read-only SCK-C PD0 (short cir- 04B0 Read/write SCK-C PD48 cuit) (comp. level) 0481...
  • Page 109 Register tables Table A-14 Range 10: SCK-C-MODBUS (Modbus address 0480h..04E0h) [...] Modbus Access Designation Modbus Access Designation address address (HEX) (HEX) 049E Read-only SCK-C PD30 04CE Read-only SCK-C MI29 049F Read-only SCK-C PD31 04CF Read-only SCK-C MI30 04A0 Read-only SCK-C PD32 (tem-...

  • Page 110: A 2 Accessories

    RS-485 Modbus cable PSI-REP-RS485W2 2313096 Repeater for signal isolation and signal amplification in RS-485 networks FL COMSERVER 2313452 Interface converter for RS-485/Ethernet UNI 232/422/485 STEP- 2868596 Power supply for module connection outside of the PS/1AC/24DC/0.5 Solarcheck device range PHOENIX CONTACT 105608_en_00...

  • Page 111: A Appendix For Document Lists

    Value representation for voltage measurement ........28 Figure 4-3: Step response time ................29 Section 5 Figure 5-1: Block diagram of the SCK-C-MODBUS Solarcheck communication module ............... 31 Figure 5-2: Structure of the Solarcheck communication network ......32 Figure 5-3: Schematic diagram of Solarcheck communication ......
  • Page 112 Figure 8-2: System calibration ................69 Section 9 Figure 9-1: SCK-C-MODBUS in the inverter station, current measuring module without voltage measurement in the string combiner box ....71 Figure 9-2: SCK-C-MODBUS in the inverter station, current measuring module with voltage measurement in the string combiner box ......72...
  • Page 113 List of figures Section 10 Figure 10-1: LED indicators ................... 75 105608_en_00 PHOENIX CONTACT...
  • Page 114 Solarcheck family PHOENIX CONTACT 105608_en_00...

  • Page 115: List Of Tables

    Table 6-9: Setting the baud rate ................51 Table 6-10: Setting the parity.................. 51 Table 6-11: Setting the stop bits ................51 Table 6-12: Current consumption ................62 Section 8 Table 8-1: Assignment time - register value............67 105608_en_00 PHOENIX CONTACT...
  • Page 116 Range 8: SCK channel 7 (Modbus address 0380h..03E0h) ....105 Table A-13: Range 9: SCK channel 8 (Modbus address 0400h..0460h)....106 Table A-14: Range 10: SCK-C-MODBUS (Modbus address 0480h..04E0h)..108 Table A-15: List of accessories ................110 PHOENIX CONTACT 105608_en_00...

This manual is also suitable for:

Sck-m-i-8s-20aSck-m-i-4s-20aSck-m-u-1500v

Table of Contents