Cattron CANplus CP750 MODBUS Register Descriptions, Wiring And Configuration Manual
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Cattron CANplus CP750 MODBUS Register Descriptions, Wiring And Configuration Manual

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CANplus
TM
CP750
MODBUS
Register Descriptions, Wiring and Configuration
Manual
9M04-1000-A101-EN

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Summary of Contents for Cattron CANplus CP750 MODBUS

  • Page 1 CANplus CP750 MODBUS Register Descriptions, Wiring and Configuration Manual 9M04-1000-A101-EN...
  • Page 2 Any information furnished by Cattron™ and its agents is believed to be accurate and reliable. All specifications are subject to change witho Responsibility for the use and application of Cattron products rests with the end user since Cattron and its agents cannot be aware of all potential uses makes no warranties as to non-infringement nor as to the fitness, merchantability, or sustainability of any Cattron products for any specific or gene Cattron Holdings, Inc., or any of its affiliates or agents shall not be liable for incidental or consequential damages of any kind.

  • Page 3: Table Of Contents

    CANplus CP750 MODBUS Register Descriptions, Wiring and Configuration Manual Contents Introduction ................................5 Important Safety Information ..........................6 Autostart Warning ............................ 6 Telemetry Device Warning ........................6 Wiring ................................... 8 MODBUS Configuration ............................9 Supported UART Modes .......................... 9 Multiple Register Access ........................10 Coils ...................................
  • Page 4 CANplus CP750 MODBUS Register Descriptions, Wiring and Configuration Manual 10.1.2 Delay Before Reply ........................33 10.1.3 Terminating Resistors and Wire Type ..................33 10.1.4 Ground Potentials ........................33 10.2 Receiving Errors ............................. 33 11 Technical Support .............................. 34 9M04-1000-A101-EN Revision B...

  • Page 5: Introduction

    This symbol indicates that the reader should take particular notice of the information following it. Double usage of this symbol indicates that the information following it is extremely important. ____________________________________ MODBUS is a registered trademark of Schneider Automation Inc. CANplus is a registered trademark of Cattron. 9M04-1000-A101-EN Revision B...

  • Page 6: Important Safety Information

    OEMs, distributors and customers in fulfilling individual safety policies and mandates • Supply of Cattron Autostart warning labels • Affixing the Cattron standard Autostart warning (label and/or tag) to each Autostart panel prior to shipment Telemetry Device Warning Telemetry devices may be applied such that remote and out-of-sight engine/machine start-up could be facilitated without knowledge of the localized condition(s), human interaction/presence, or human proximity at the engine/machine site.
  • Page 7 ALWAYS use lockout/tag out procedures prior to performing ANY service on any engine/machine and disconnect the engine machine from the telemetry system Cattron makes the following provisions available to all OEMs, distributors and customers: • Inclusion of information and warnings specific to telemetry safety with each shipment; additional information may be available at www.cattron.com/contact...

  • Page 8: Wiring

    CANplus CP750 MODBUS Register Descriptions, Wiring and Configuration Manual Wiring Connection to the MODBUS is made via a 5-position female M12 Key ’A’ connector that is mounted on the rear panel of the CP750 panel. The pin signals are shown in Table Table 2: MODBUS Pin Signals Signal...

  • Page 9: Modbus Configuration

    The default address of the panel is 127 unless specifically ordered from Cattron to be pre-configured differently. If the serial communication settings need to be changed, this can be done using either the CANplus Configuration tool or via the MODBUS interface itself.

  • Page 10: Multiple Register Access

    CANplus CP750 MODBUS Register Descriptions, Wiring and Configuration Manual Changes in the panel settings will only occur after a power cycle of the control panel. This can be achieved by manually turning the key switch to the ‘OFF’ position or by writing to the “Control Panel Software Restart”...
  • Page 11 CANplus CP750 MODBUS Register Descriptions, Wiring and Configuration Manual Baud Rate Parity Register Value 19200 19200 Even 38400 None 38400 38400 Even 57600 None 57600 57600 Even Table 6: Maximum Consecutive Read/Write Register Type Maximum Consecutive Read/Write Coil Discrete Inputs Holding Registers 9M04-1000-A101-EN Revision B...

  • Page 12: Coils

    CANplus CP750 MODBUS Register Descriptions, Wiring and Configuration Manual Coils Coils are used as read/write registers. By turning on or off a particular coil, the panel can be instructed to perform the necessary operation. Table 7 details the coils available and their function. Please note that coils are only operational when the key switch is in the “Autostart”...
  • Page 13 CANplus CP750 MODBUS Register Descriptions, Wiring and Configuration Manual Should the engine fail to start then it is the responsibility of the master controller to determine this and to attempt restart as appropriate. To attempt to restart an engine that has failed to start during cranking, the “Start/Run Engine”...

  • Page 14: Discrete Inputs

    CANplus CP750 MODBUS Register Descriptions, Wiring and Configuration Manual Discrete Inputs Discrete inputs are read-only registers representing the state of all digital inputs and outputs of the panel. By reading the discrete input registers, it is possible to determine, for example, the state of the auxiliary switches, or whether the engine is running.

  • Page 15: Input Registers

    CANplus CP750 MODBUS Register Descriptions, Wiring and Configuration Manual Input Registers Input registers are read-only registers representing system values, such as software version number, engine speed, battery voltage, etc. All input registers are read using MODBUS function code 4. Table 9: Input Registers Modicon Register Address...
  • Page 16 Diesel Particulate Filter Status See SPN 3701 22 (16 30023 DPF Regeneration Forced Status See SPN 4175 Configuration Tool Serial Number 23 (17 30024 Cattron use only (2 bytes) 24 (18 30025 Firmware Major Release 25 (19 30026 Firmware Minor Release 26 (1A...
  • Page 17 CANplus CP750 MODBUS Register Descriptions, Wiring and Configuration Manual Modicon Register Address Description Notes Address Number 46 (2E 30047 Upper 16 Bits of Trip Fuel Used 0.5 L/bit; 0 … 2105540607.5 47 (2F 30048 Lower 16 Bits of Trip Fuel Used 0.5 L/bit;...
  • Page 18 CANplus CP750 MODBUS Register Descriptions, Wiring and Configuration Manual Modicon Register Address Description Notes Address Number 105 (69 30106 Active Fault 2 SPN (lower 16 bits) 19-bit value; 0 … 524287 106 (6A 30107 Active Fault 2 SPN (upper 3 bits) 19-bit value;...

  • Page 19: Holding Registers

    CANplus CP750 MODBUS Register Descriptions, Wiring and Configuration Manual Holding Registers Holding registers are read/write registers that reflect the configuration settings of the panel. Such parameters are typically changed either via the menu capabilities of an attached display, or via the CANplus Configuration tool. The ability to change these configuration parameters via the MODBUS allows for re-configuration of a panel remotely.
  • Page 20 CANplus CP750 MODBUS Register Descriptions, Wiring and Configuration Manual Modicon Register Address Description Notes Address Number 10 (A 40011 Oil Pressure Fault Mode (boolean) 11 (B 40012 Oil Pressure Ignore Time (s) 0 … 250 Oil Pressure Fault Shutdown Delay 12 (C 40013 0 …...
  • Page 21 CANplus CP750 MODBUS Register Descriptions, Wiring and Configuration Manual Modicon Register Address Description Notes Address Number 36 (24 40037 Starter On Time (s) 2 … 30 Starter Disengage Speed (100 37 (25 40038 RPM) 38 (26 40039 Prestart Alarm Time 0 …...
  • Page 22 CANplus CP750 MODBUS Register Descriptions, Wiring and Configuration Manual Modicon Register Address Description Notes Address Number 70 (46 40071 Transducer Type (xdcr type t) 71 (47 40072 Transducer Range (xdcr range t) … 72 (48 40073 Servo Gain (RPM*error percent) …...
  • Page 23 CANplus CP750 MODBUS Register Descriptions, Wiring and Configuration Manual Modicon Register Address Description Notes Address Number 100 (64 40101 At Speed (RPM, 2 bytes) … 102 (66 40103 Enable Below At Speed (RPM) 250,255 … 103 (67 40104 Disable Above At Speed (RPM) 250,255 104 (68 40105...
  • Page 24 CANplus CP750 MODBUS Register Descriptions, Wiring and Configuration Manual Modicon Register Address Description Notes Address Number 308 (134 40309 ADC 4 mA Calibration Read Only 310 (136 40311 ADC 20 mA Calibration Read Only 312 (138 40313 Controlled Shutdown Mask 313 (139 40314 Fuel Fault Level (%)
  • Page 25 CANplus CP750 MODBUS Register Descriptions, Wiring and Configuration Manual Modicon Register Address Description Notes Address Number feet, meters; see Table 14 359 (167 40360 SKIM Level Display Units values 368 (170 40369 Internal Transducer Setup Units Table 14 for values 369 (171 40370 Internal Transducer Display Units...

  • Page 26: Auxiliary Output Modes

    CANplus CP750 MODBUS Register Descriptions, Wiring and Configuration Manual Modicon Register Address Description Notes Address Number MODBUS Speed Override Time 0 … 65534; 65535 = 1009 (3F1 41010 1010 (s); available in firmware version continuous 3.14 onwards … RPM/second; 0 8000;...

  • Page 27: Example Operation

    CANplus CP750 MODBUS Register Descriptions, Wiring and Configuration Manual Example Operation MODBUS Monitor A CP750 panel has been configured to automatically control a pump. It is required that the status of the pump is monitored remotely and a SCADA system has been connected using RS-485 MODBUS RTU to the CP750 panel.

  • Page 28: Modbus Full Control

    CANplus CP750 MODBUS Register Descriptions, Wiring and Configuration Manual The following is an example on how to temporarily override the engine speed. • Set the desired run speed by writing a value into the Engine Requested Speed (Address 41001) holding register •...

  • Page 29: Stopping An Engine Remotely

    CANplus CP750 MODBUS Register Descriptions, Wiring and Configuration Manual “Engine Requested Speed” (Address 41001) is set to the starting idle speed (e.g., 800 RPM). The “Engine Run” (Address 00002) coil is set. The discrete input “Engine Running” (Address 10022) is repeatedly checked and when set indicates that the engine has successfully been started.

  • Page 30: Remotely Change Configuration

    CANplus CP750 MODBUS Register Descriptions, Wiring and Configuration Manual Figure 2: Typical Ramp Profile Remotely Change Configuration A CP750 is being used in a “monitor only” type application – as described in Section 9.1. The panel has been previously configured to start the engine when the transducer input reaches 50%. This setting is to be changed to 60%.

  • Page 31: Configuring Auxiliary Output

    CANplus CP750 MODBUS Register Descriptions, Wiring and Configuration Manual Holding Register Address Holding Register Name 40081 Target Set Point 40083 Transducer High Fault Level 40085 Transducer Low Fault Level It is best to change the throttle settings when the engine is not running. If the “Control Panel Software Restart”...
  • Page 32 CANplus CP750 MODBUS Register Descriptions, Wiring and Configuration Manual Unit Type Units Unit Decode Value Pressure Pressure inHG Pressure mmHG Pressure Feet of water Pressure Meters of water Distance Meters Distance Feet Temperature Celsius Temperature Fahrenheit Temperature Kelvin Flow Gallons (US) per hour Flow Gallons (US) per minute Flow...

  • Page 33: Troubleshooting

    CANplus CP750 MODBUS Register Descriptions, Wiring and Configuration Manual Troubleshooting 10.1 No Communication With Device 10.1.1 Verify MODBUS Configuration Verify that the same baud rate, parity, stop bits and data bits are being used on all connected devices. Also verify that other devices are using MODBUS RTU.
  • Page 34 CANplus CP750 MODBUS Register Descriptions, Wiring and Configuration Manual Technical Support For remote and communication control systems support, parts and repair, or technical support, visit us online at: www.cattron.com/contact. 9M04-1000-A101-EN Revision B...
  • Page 35 Due to continuous product improvement, the information provided in this document is subject to change without notice. Cattron Support For remote and communication control systems support, parts and repair, or technical support, visit us online at: www.cattron.com/contact Cattron North America Inc., 655 N River Rd NW, Suite A, Warren, OH 44483 9M04-1000-A101-EN Revision B...

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