Instruction Manual Supplement DVC6200 Digital Valve Controller D103639X012 August 2014 HARTr Field Device Specification Fisherr FIELDVUE™ DVC6200 Digital Valve Controller HART Revision Device Type Device Revision Firmware Revision HART 5 09 1 HART 7 1309 2 3, 4, 5, 6 Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Purpose of this document . . . . . . . . . . . . . . . . . . . .
DVC6200 Digital Valve Controller Instruction Manual Supplement D103639X012 August 2014 Introduction Product Overview The FIELDVUE DVC6200 digital valve controller is designed to control the pneumatic actuator of a process control valve. It receives a current signal from a host and uses instrument air supply to create a metered pressure output signal to the pneumatic actuator.
Instruction Manual Supplement DVC6200 Digital Valve Controller D103639X012 August 2014 Reference Documentation HART Smart Communications Protocol Specification Revision 7.4; a group of documents specifying the HART Communication Protocol, physical layers, and Data Link Layers as defined by the HART Communications Foundation. Bulletin 62.
Instruction Manual Supplement DVC6200 Digital Valve Controller D103639X012 August 2014 Product Interfaces Control Valve Interface The DVC6200 digital valve controller is mechanically attached to the valve’s actuator by means of a mounting bracket. The control valve's position is conveyed to the travel sensor of the DVC6200 digital valve controller by means of the feedback bracket and magnet assembly attached to the actuator’s stem.
Instruction Manual Supplement DVC6200 Digital Valve Controller D103639X012 August 2014 Internal Jumpers And Switches (Optional) The input to the DVC6200 is determined by the PtPt/MultiDrop switch on the printed wiring board. The DVC6200 also has a pair of optional “Output” terminals that can either function as a position transmitter or a discrete switch. Electrical configuration of the output circuit requires the proper setting of a DIP switch on the DVC6200’s printed wiring board.
Instruction Manual Supplement DVC6200 Digital Valve Controller D103639X012 August 2014 Dynamic Variables Four Dynamic Variables are implemented. PV SV* TV* FV* Default Meaning Analog Input Travel Setpoint Pressure Travel Units mA, % % PSI, BAR, KPA, Kg/cm2 % * User selectable The SV, TV, and FV variables are user selectable via Command 51 to any of the following variables.
Instruction Manual Supplement DVC6200 Digital Valve Controller D103639X012 August 2014 Unit Codes Variable Units Code 0 6 7 10 ($0A) 12 ($0C) 32 ($20) 33 ($21) 39 ($27) 57 ($39) Units No Units Pounds per square inch, psi Bar Kilograms per square centimeter, kg/cm2 Kilopascals, kPa Celsius, _C Fahrenheit, _F Milliamps, mA Percent, % Status Information Device Status The Field Device Status Byte is the only status byte defined in the HART protocol.
DVC6200 Digital Valve Controller August 2014 Instruction Manual Supplement D103639X012 Universal Commands The DVC6200 field device implements all Universal Commands. Commands 14, 15, 17, 48 are listed below to indicate their unique responses.
Instruction Manual Supplement DVC6200 Digital Valve Controller D103639X012 August 2014 Command 14: Read Primary Variable Transducer Information The transducer limits reported in this command are either 420 milliamps, or 0100%, and reflect the units code most recently supplied in command 44. Note The Transducer Serial Number is not applicable to the DVC6200 and is set to “0”.
Instruction Manual Supplement DVC6200 Digital Valve Controller D103639X012 August 2014 Command 15: Read Primary Variable Output Information This command returns the upper/lower range values for the primary variable which is defined to be the loop current signal. These are the loop current values for the ends of physical travel, and are used to derive set point from the loop current. It reports the range supplied in Command 35.
Instruction Manual Supplement DVC6200 Digital Valve Controller D103639X012 August 2014 Command 17: Write Message This command allows you to write a 24 character informational message into the device. However, per common implementation of Emerson devices, writing a specific string to the Message field will signal the device to transition operation from HART 5 to HART 7 mode and vice versa. The original message in the device will not be altered if these strings are encountered.
Instruction Manual Supplement DVC6200 Digital Valve Controller D103639X012 August 2014 Command 48: Read Additional Status This command was significantly revised in HART 7, but can operate in backward compatible mode for HART 5 masters which do not supply data bytes in the request. Supplying data bytes allows you to acknowledge the current status, and cause the more_status bit to be withdrawn until some status bit changes value. Exactly 0 or 9 data bytes must be supplied.
Instruction Manual Supplement DVC6200 Digital Valve Controller D103639X012 August 2014 Additional Device Status Command 48 returns 9 bytes of data, with the following status information: Byte 0 1 Bit Name of Status Bit 7 Flash Integrity Failure 6 Minor Loop Sensor Alert 5 Reference Voltage Failure 4 Drive Current Failure 3 Critical NVM Failure 2 Temperature Sensor Failure 1 Pressure Sensor Failure 0 Travel Sensor Failure 7 6 5 4 Alert Record Not Empty Alert Reserved Calibration In
Instruction Manual Supplement DVC6200 Digital Valve Controller D103639X012 August 2014 Additional Device Status (continued) Byte Bit 6 Name of Status Bit Diagnostic Data Available Alert Reserved 5 Supply Pressure Alert 4 End Point Pressure Deviation Alert 7 3 3 2 7 6 5 4 Reserved Reserved Integrator Saturated High Alert Integrator Saturated Low Alert Travel Alert Lo Travel Alert Lo Lo Travel Alert Hi Travel Alert Hi Hi 3 Travel Deviation Alert 2 1 Travel Limit/Cutoff Hi Alert Travel Limit
Instruction Manual Supplement DVC6200 Digital Valve Controller D103639X012 August 2014 Additional Device Status (continued) Byte 6 7 8 Bit 7 Name of Status Bit Reserved 6 Reserved 5 Reserved 4 Reserved 3 Reserved 2 Reserved 1 Device Variable alert(1) 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 Maintenance Required(2) Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Electronic Defect(3) Environmental Limit(4) Reserved Reserved Reserved NVM Error(5) Reserved Meani
DVC6200 Digital Valve Controller Instruction Manual Supplement August 2014 CommonPractice Commands The DVC6200 field device supports the following common practice commands: Supported Commands Command 33: Read Device Variables Command 35: Write Primary Variable Range Values Command 42: Perform Master Reset Command 44: Write PV Units Code Command 50: Read Dynamic Variable Assignments Command 51: Write Dynamic Variable Assignments Command 52: Set Device Variable Zero Command 53: Set Device Variable Units
Instruction Manual Supplement D103639X012 DVC6200 Digital Valve Controller August 2014 Command 33: Read Device Variables This command is used to read the value of up to four selected Device Variables. The Device Variables and Variable Units Codes are listed on page 6 and 7.
DVC6200 Digital Valve Controller Instruction Manual Supplement D103639X012 August 2014 Command 35: Write Primary Variable Range Values In the DVC6200, the Primary Variable is defined to be the Analog Input (loop current). This command is used to write the ranging values reported in Command 15. It controls how the DVC6200 interprets the loop current when creating the Travel Target. The upper range must be greater than the lower range.
Instruction Manual Supplement DVC6200 Digital Valve Controller D103639X012 August 2014 Command 42: Perform Master Reset This reset command has two options. If no data bytes are supplied, respond immediately and then perform a “warm” reset. This is not equivalent to power up in that restart modes and default IVP are not adopted and the realtime clock is not reset. All other data is read from nonvolatile memory and put into effect. The second option is hard reset.
Instruction Manual Supplement DVC6200 Digital Valve Controller D103639X012 August 2014 Command 50: Read Dynamic Variable Assignments This command returns a list of four device variable codes, taken from the Device Variables table on page 6, which are returned in Command 3. These Dynamic Variables are specified via Command 51.
Instruction Manual Supplement DVC6200 Digital Valve Controller D103639X012 August 2014 Command 52: Set Device Variable Zero This command is used to force one of the pressure inputs to read 0. To use this for pressure, apply 0 psi to the sensor. Then, send this command, specifying the affected pressure Device Variable. The offset will be adjusted to force the present value to read 0. An error will be generated, and no change applied, if the new value causes a change of more than about 3%.
Instruction Manual Supplement DVC6200 Digital Valve Controller D103639X012 August 2014 Command 54: Read Device Variable Information This command is used to identify each of the Device Variables, in the range of IDs 0…10 inclusive. Responds with the Sensor Serial Number, Sensor Range Units, Sensor Ranges, Damping Value, and Minimum Span of the selected variable. The variable range values will be in the same units as the variable units. Items marked by “*” are only supported in HART 7 mode.
Instruction Manual Supplement DVC6200 Digital Valve Controller D103639X012 August 2014 Annex A Compatibility Checklist Manufacturer, Model, and Revision Fisher Controls DVC6200 Device Revision 2 Device Type HART Protocol Revision User switchable between HART 5 mode and HART 7 mode? Pneumatic Control Valve Positioner 7.4 Yes, either with configuration within DD or with a special string in the Message field. Device Revision 1 is for HART 5 mode. Device Revision 2 is for HART 7 mode.
Instruction Manual Supplement DVC6200 Digital Valve Controller D103639X012 August 2014 Annex B DVC6200 Parameters as part of a Rosemount 1410 / 1420 WirelessHART Gateway A FIELDVUE DVC6200 can join a wireless network through the addition of a Rosemount 775 THUM WirelessHART adapter. The wireless adapter acts both as a HART modem for communications coming to the DVC6200 from application software and as an independent master issuing commands periodically to the wired device pertaining to it’s status.
Instruction Manual Supplement DVC6200 Digital Valve Controller D103639X012 August 2014 The FIELDVUE instrument is defined on the Gateway by “Tag” (read from the device’s “Message” field).
Instruction Manual Supplement DVC6200 Digital Valve Controller D103639X012 August 2014 Published Data, used for the Gateway’s OPC and Modbus outputs, falls into the following categories: Field Device Identification Values: Values that define the identity of the DVC6200.
Instruction Manual Supplement DVC6200 Digital Valve Controller D103639X012 August 2014 Any of these choices [Dynamic Variable, Device Variable ID, or Device Variable Name(s)] can be substituted for the “#” sign in the Variable Identifier fields below. Variable Identifier Comments / Explanation # See any of the variable identifiers in the table immediately above. #_CLASS Always “0”. #_CODE The “Device Variable ID” number in the table immediately above.
Instruction Manual Supplement DVC6200 Digital Valve Controller D103639X012 August 2014 Each of these status bytes represent eight individual bits with values that range from “00” to “255”. To determine which of the eight bits are active requires converting a decimal value to its binary equivalent value. Refer to Command 48 on page 12 for details on the individual alert bits inside of each Additional Status Byte. Note Gateways with firmware version 4.4 define the alerts of DVC6200 hardware 2 devices.
Instruction Manual Supplement DVC6200 Digital Valve Controller D103639X012 August 2014 ADDITIONAL_STATUS_2 According to Command 48: Bit 7 Reserved Bit 6 NonCritical NVM Alert As defined in the Gateway: NON_CRITICAL_NVM_ALERT Bit 5 Cycle Counter High Alert CYCLE_COUNTER_HIGH_ALERT Bit 4 Travel Accumulator High Alert TRAVEL_ACCUMULATOR_HIGH_ALERT Bit 3 Instrument Time is Approximate Alert INSTRUMENT_TIME_IS_APPROXIMATE_ALERT Bit 2 Alert Record Full Alert ALERT_RECORD_FULL_ALERT Bit 1
Instruction Manual Supplement DVC6200 Digital Valve Controller D103639X012 August 2014 * * * ADDITIONAL_STATUS_6 According to Command 48: Bit 7 Reserved Bit 6 Reserved Bit 5 Reserved Bit 4 Reserved Bit 3 Reserved As defined in the Gateway: Bit 2 Reserved Bit 1 Device Variable Alert DEVICE_VARIABLE_ALERT Bit 0 Maintenance Required MAINTENANCE_REQUIRED ADDITIONAL_STATUS_7 According to Command 48: As defined in the Gateway: Bit 7 Reserved Bit 6 Reserved Bit 5 Reserved Bit 4
Instruction Manual Supplement D103639X012 DVC6200 Digital Valve Controller August 2014 31
DVC6200 Digital Valve Controller August 2014 Instruction Manual Supplement D103639X012 Neither Emerson, Emerson Process Management, nor any of their affiliated entities assumes responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use, and maintenance of any product remains solely with the purchaser and end user. Fisher and FIELDVUE are marks owned by one of the companies in the Emerson Process Management business unit of Emerson Electric Co.
