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Summary of Contents for Diamond technologies DT7000
- Page 1 DT7000 Communication I/O Gateway User’s Guide Version 2.6...
- Page 2 Liability Diamond Technologies Inc. shall not be liable for technical or editorial errors or omissions contained herein, nor for incidental or consequential damages resulting from the use of this material. Those responsible for the use of this device must ensure that all necessary steps have been taken to verify that the applications meet all performance and safety requirements including any applicable laws, regulations, codes, and standards.
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Page 3: Table Of Contents
Reference Documents ................................3 iii Table of Contents ................................. 3 1.0 Introduction ..................................4 2.0 DT7000 – Module ................................4 2.1 Module Layout ................................5 2.2 Module Mounting ................................5 2.3 Input Power ................................... 5 ... -
Page 4: Introduction
2.0 DT7000 – Module The DT7000 module includes four serial ports (PORT A, B, C and D). These ports can be configured as master or slave using the standard MODBUS-RTU protocol. Alternatively the ports can be configured to support the generic serial driver to allow control of serial devices over the fieldbus network with protocols implemented on the host. -
Page 5: Module Layout
2.3 Input Power The DT7000 requires input power of 9 to 40 VDC (24 VDC nominal), at the terminal block connector (J19). Alternatively for some applications a 3 pin pluggable connector (J17) is used for power in. Refer to the following table for the power connections. -
Page 6: Serial Port Connections
2.4 Serial Port Connections The DT7000 includes four serial ports. Each serial port is either RS232 or RS485. For B versions of the module, only the RS232 connectors are included. Refer to the following tables, for connecting serial devices to the DT7000. -
Page 7: Digital I/O Connections
When the inputs are configured as source in, they require a current source on the input pin to turn on. Digital Input (8X) (Source in): When they are configured as sink in they require a current sink on the input pin to turn on. DT7000 Gateway User’s Guide 2.61 Page 7 of 22... - Page 8 The XV LED (D4) shows the status of the external I/O voltage. This will be illuminated green if I/O voltage is present. It will be red if I/O voltage is connected with polarity reversed. DT7000 Gateway User’s Guide 2.61 Page 8 of 22...
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Page 9: Analog I/O Connections
LEDs on the module. 2.8 Mating Connectors The serial and analog connectors on the DT7000 are Molex latching connectors. The digital connector is a 26 pin header connector, suitable for ribbon cable or discrete wire connectors. The following table lists the recommended mating connectors. -
Page 10: Module Indicators
The fieldbus address in the EEPROM can also be set through the diagnostics port. The switches can be used to reset all configurable parameters in the DT7000 to factory default values, and to erase the user application. If the switches are all up (255 value) on power up, the status LED (D5) will flash red for 5 seconds, and on the diagnostic port a message (*** Change Switches to Reset to Factor Defaults ***) will be displayed. -
Page 11: Communications
PLC or host computer, any of the fieldbus protocols can be used, as supported by the host. For users wishing to develop an application on a host PC to communicate with the DT7000, MODBUS-RTU or MODBUS-TCP can be used. ActiveX components implementing MODBUS are readily available and can be used to simplify application development. -
Page 12: Fieldbus Data Format
The digital I/O, analog I/O, and serial data are mapped to the field bus data and can be accessed over the installed fieldbus. This mapping can be configured through the diagnostic port. The following table lists the default mapping of the data on the fieldbus for this version of the module. Output Data (Sent from Host to DT7000). Word Byte... - Page 13 Input Data (Sent from DT7000 to Host). Word Byte Register Function Digital Inputs (Inputs 0-7) Reserved Analog Input 0 Analog Input 1 Analog Input 2 Analog Input 3 Analog Input 4 Analog Input 5 Analog Input 6 Analog Input 7...
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Page 14: Generic Serial Driver
The host should follow the procedure outlined here to send and receive data from the serial device. DT7000 Gateway User’s Guide 2.61 Page 14 of 22... -
Page 15: Supported Networks
The passive modules provide a serial pass through connection between the DT7000 and a host, over a different media. The passive modules internally connect to port C of the DT7000, disabling the port C connectors J26 and J16. With a passive module installed, a serial protocol (such as MODBUS RTU) enabled on port C will pass through the installed media (USB or Bluetooth) to the host. -
Page 16: Modbus-Rtu (Native Serial Ports)
Through the native MODBUS interface the input and output arrays are accessible. In addition it is possible to access other memory areas in the DT7000. When a user application is installed, the DT arrays and the FB arrays are both accessible at different address ranges. In addition the AP data array is accessible. Finally the configuration block is accessible allowing the module to be configured through the MODBUS interface. -
Page 17: Diagnostic Interface
(3, 4). It is possible to use the DT7000 module as a MODBUS-RTU to fieldbus gateway. Through the native serial ports writing to input array registers that are not assigned to other functions, using function code 6, or 16 to address 40257-40512 is allowed, and will modify values in the input array. - Page 18 ESC, will set this as the diagnostic port and display the main menu. To save the current diagnostic port for future startup information, update the flash configuration with the ‘U’ command. The following shows the configuration in Hyperterminal to connect to the diagnostic interface. DT7000 Gateway User’s Guide 2.61 Page 18 of 22...
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Page 19: Startup
5.1 Startup When the DT7000 first powers up, the following data will be displayed through the diagnostic interface. This data varies depending on the installed fieldbus and the application. DT7000 Ver 2.15 I/O Gateway, Diamond Technologies (c) 2011 DT7 Module Type - B... -
Page 20: Interface Menu
5.2 Interface Menu By pressing Esc the main menu will appear. This menu varies depending on the installed fieldbus, and the application. DT7000 Rev 02.15 - Diagnostics Interface (PortD) 7 - Set Module type N - Network IO array S - Display Scan Statistics... -
Page 21: Updating The Module Firmware
Load the firmware file. The address being loaded, along with dots will be displayed on the screen as the file is loaded. It will take a few minutes. When the update is finished the DT7000 module will restart. DT7000 Gateway User’s Guide 2.61... -
Page 22: Technical Specifications
Modules built with sourcing or sinking inputs and outputs. Not user selectable. 0-20 mA analog channels can be used for 4-20 mA with corresponding reduction in resolution. Gain and offset errors can be calibrated out in software. DT7000 Gateway User’s Guide 2.61 Page 22 of 22...
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