SensAlarm Plus Hart Card manual
Contents
1. Not Used Byte 1 Bit 0 Zero Started Bit 1 Zero Good Bit 2 Zero Failed Bit 3 Calibration Started Bit 4 Calibration Good Bit 5 Calibration Failed Bit 6 TOD Started Bit 7 TOD Good Byte 2 Bit 0 Relay 1 Latching Bit 1 Relay 2 Latching Bit 2 Relay 3 Latching Bit 3 Relay 4 Latching Bit 4 Not Used Bit5 Not Used Bit 6 TOD Test Fail Active Bit 7 TOD Fail Enable Byte 3 Bit 0 Alarm 1 Active Bit 1 Alarm 2 Active Bit 2 Alarm 3 Active Bit 3 Alarm 4 Active Bit 4 Alarm 1 Enabled Bit 5 Alarm 2 Enabled Bit 6 Alarm 3 Enabled Bit 7 Alarm 4 Enabled Byte 4 Bit 0 Head Fail Enable Bit 1 Sensor Missing Enable Bit 2 Sensor Fail Enable Bit 3 Sensor End of Life Enable Bit 4 TOD End of Life Enable Bit 5 Loop Current Out of Tolerance Fault Enable Bit 6 Calibration Mode Active Fault Enable Bit 7 Maintenance Mode Active Fault Enable Byte 5 Bit 0 Head Fail Bit 1 Sensor Missing Bit 2 Sensor Fail Bit 3 Sensor End of Life Bit 4 TOD End of Life Bit5 Loop Current Out Of Tolerance Bit 6 Calibration Mode Active Bit 7 Maintenance Mode Active 10 Sensidyne Document No 360 0128 01 SensAlarm Plus HART Communications Board Device Specific Command Device Specific Command 79 Write Dynamic Variable This command is borrowed from HART Revision 6 and is formatted in the same way A single HART variable number along with a floating point value is provided by the HART host The action performed by the SensAlarm Plus device in response to this command is outline2. Span Gas Units 7 Maximum Span Gas Units 8 Alarm 1 Setpoint Gas Units 9 Alarm 2 Setpoint Gas Units 10 Alarm 3 Setpoint Gas Units 11 TWA Alarm Setpoint Gas Units 12 Cal Pre Exposure Gas Units 13 Cal Gas Concentration Gas Units 14 Date of Last Calibration Year No Units 15 Date of Last Calibration Month No Units 16 Date of Last Calibration Day Days 17 Time of Last Calibration Hour Hours 18 Time of Last Calibration Minute Minutes 19 Time of Last Calibration Second Seconds 20 TOD Peak Value Gas Units 21 Date of Last TOD Year No Units 22 Date of Last TOD Month No Units 23 Date of Last TOD Day Days 24 Time of Last TOD Hour Hours 25 Time of Last TOD Minute Minutes 26 Time of Last TOD Second Seconds 27 Display S W Version No Units 28 Comm S W Version No Units 29 Head Unit S W Version No Units Table Continued on next page Sensidyne Document No 360 0128 01 SensAlarm Plus HART Communications Board Var Description Units 30 Sensor S W Version No Units 31 Maximum Gas Concentration Gas Units 32 Date of Maximum Gas Concentration Year No Units 33 Date of Maximum Gas Concentration Month No Units 34 Date of Maximum Gas Concentration Day Days 35 Date of Maximum Gas Concentration Hour Hours 36 Date of Maximum Gas Concentration Minute Minutes 37 Date of Maximum Gas Concentration Second Seconds 38 Minimum Sensor Temperature Deg Celsius 39 Date o
3. 2 2 3 Parity 5 5 2 2 4 Stop bits 5 5 2 3 No Comm Installed 5 5 2 3 1 No Communications Board Installed 6 Sensidyne Document No 360 0128 01 Implemented HART Commands SensAlarm Plus HART Communications Board This section provides information about the implementation of the HART Protocol on the Sensidyne SensAlarm Plus Monitor The basis of Sensidyne s implementation of the HART protocol is HART Revision 5 with one device specific command to allow updating of certain dynamic variables This command will allow the HART host software to change alarm levels enable disable alarms etc The following HART Commands have been implemented in the SensAlarm Plus device Hart commands are divided as follows Universal Commands UC Common Practice Commands CPC and Device Specific Command DSC Universal Commands Command Label Function Description Mfg ID 81 j ee Device Type 239 Reaoiunique identifier Device ID 001 SensAlert boards are not serialized all will report Device ID 001 4 R ad mann wanable Primary Variable is Gas Concentration Dynamic variable 1 p y Appropriate units will be reported Loop current is reported in mA Dynamic variable 0 O 2 Mead Cent ofrange Percent of range is reported in Loop current is reported in mA Dynamic variable 0 Readcurrent and four Primary Variable is Gas Concentration Dynamic variable 1 3 pr
4. 41 Enable Disable Sensor Missing Coil 42 Enable Disable Sensor Fail Coil 43 Enable Disable Sensor End Of Life Coil 44 Enable Disable TOD End of Life Coil 45 Enable Disable Loop Calibration Out Of Tolerance Coil 46 Enable Disable Calibration Mode Active Fault Coil 47 Enable Disable Maintenance Mode Active Fault Sensidyne Document No 360 0128 01 11 SensAlarm Plus HART Communications Board For further information about the HART protocol contact the HART Communication Foundation at www hartcomm org HART Communication Foundation 9390 Research Blvd Suite I 350 Austin TX 78759 Tel 512 794 0369 Fax 512 794 3904 12 Sensidyne Document No 360 0128 01 TERTE Dil UDI Y INN NA amp Sensidyne LP a8 1000 112 Circle N Suite 100 EB uis St Petersburg Florida 33716 USA IAS MANG PN NT 800 451 9444 s 1 727 530 3602 1 727 539 0550 fax web www sensidyne com e mail info sensidyne com
5. SENSA Lanm PLUS HART Communications Board Highway Addressable Remote Transducer User Manual Document No 360 0128 01 Revision C SEIWDEEST IN Sensidyne LP 1000 112 Circle N Suite 100 St Petersburg Florida 33716 USA 800 451 9444 s 1 727 530 3602 1 727 539 0550 fax web www sensidyne com e mail info sensidyne com SensAlarm Plus HART Communications Board e Field Installation Kit If you have ordered the field install kit p n 821 0302 02 you will need to install the HART Card into your SensAlarm Plus Monitor as follows If not skip to Set Up 1 Disconnect Power Open cover 2 Remove screws from Main PCA 3 Install 3 Hex Stand offs on Main PCA Stand Offs 3 Places Sensidyne Document No 360 0128 01 3 SensAlarm Plus HART Communications Board 4 Remove HART Connector from Main PCA Attach wires from TB9 on Hart PCA Red Wire from TB9 on Hart Plug to Main PCA Hart Connector Pin Black Wire from TB9 on Hart Plug to Main PCA Hart Connector Pin ox Main PCA Hart Connector 5 Place the HART Card on the Hex Stand offs and gently couple the Electrical Plug into the jack on the Main Printed Circuit Board Assembly Connect Wires to Main PCA Hart Connector 6 Re Install the 3 Screws and Lock Washers into the Hex Stand offs HART Card Screws amp Washers 3 Places from Main PCA Main PCA HART Connector Red Wire Black Wire 4 Sen
6. d below The following 4 variables can be directly updated by the HART host Dynamic Variable 8 Alarm 1 Setpoint Dynamic Variable 9 Alarm 2 Setpoint Dynamic Variable 10 Alarm 3 Setpoint Dynamic Variable 11 TWA Alarm Setpoint Various bit functions can be changed through special use of this command Bit functions have coil numbers assigned to them To turn on a bit function Dynamic Variable 40 is loaded with the coil number related to the selected bit function To turn off a bit function Dynamic Variable 41 is loaded with the coil number related to the selected bit function Any requests to update variables other than 8 9 10 11 40 or 41 will be ignored The table below lists the Coil Numbers writable by the HART host along with their designated functions Coil 0 On gt Start Zeroing Sensor Coil 3 On gt Start Sensor Calibration Coil 6 On gt Start TOD Coil 9 On gt Stop Sensor Calibration Coil 16 On gt Clear Latched Relays Coil 20 Enable Disable Alarm 1 Coil 21 Enable Disable Alarm 2 Coil 22 Enable Disable Alarm 3 Coil 23 Enable Disable Alarm 4 Coil 24 Enable Disable Relay 1 Latching Coil 25 Enable Disable Relay 2 Latching Coil 26 Enable Disable Relay 3 Latching Coil 27 Enable Disable Relay 4 Latching Coil 31 Enable Disable TOD Fail Coil 40 Enable Disable Head Fail Coil
7. edefined dynamic variables Secondary Variable is TWA Gas Concentration Dynamic variable 2 p y Third Variable is Sensor Temperature Dynamic variable 3 Fourth Variable is Sensor Type Dynamic variable 4 12 Bedd message The 32 character message is read from internal non volatile memory 9 and reported to the HART host 13 Duda eco date The 8 character TAG 16 character DESCRIPTOR and the DATE are 9 ptor read from internal non volatile memory and reported to the HART host 17 We messadge The 32 character message provided by the HART host is written to 9 internal non volatile memory f The 8 character TAG 16 character DESCRIPTOR and the DATE 18 Write tag descriptor date provided by the HART host are written to internal non volatile memory Sensidyne Document No 360 0128 01 SensAlarm Plus HART Communications Board Common Practice Commands Command 33 Read Dynamic Variable Up to four dynamic variables can be requested by the HART host and their current values will be reported with appropriate units to the host The following table lists the dynamic variables Var Description Units 0 Loop Current mA 1 Primary Variable PV Gas Concentration Gas Units 2 TWA Gas Concentration Gas Units 3 Sensor Temperature Deg Celsius 4 Rn 16 bit value Converted to 32 bit float No Units 5 Maximum Full Scale Value Gas Units 6 Minimum
8. f Minimum Temperature Year No Units 40 Date of Minimum Temperature Month No Units 41 Date of Minimum Temperature Day Days 42 Date of Minimum Temperature Hour Hours 43 Date of Minimum Temperature Minute Minutes 44 Date of Minimum Temperature Second Seconds 45 Maximum Sensor Temperature Deg Celsius 46 Date of Maximum Temperature Year No Units 47 Date of Maximum Temperature Month No Units 48 Date of Maximum Temperature Day Days 49 Date of Maximum Temperature Hour Hours 50 Date of Maximum Temperature Minute Minutes 51 Date of Maximum Temperature Second Seconds Note When a gas sensor is plugged into the head the appropriate units for that type of gas is reported to the HART communications board The correct units for the selected gas will be used for any of the variables that have Gas Units in the units column Sensidyne Document No 360 0128 01 9 SensAlarm Plus HART Communications Board Command 48 Read Additional Device Status At the HART host s request 48 status bits i e 6 status bytes are reported to the hosts The table below lists the definitions of the 48 status bits reported by Command 48 Byte 0 Bit 0 TOD Failed Bit 1 Not Used Bit 2 Not Used Bit 3 Not Used Bit 4 Not Used Bit5 Not Used Bit 6 Not Used Bit 7
9. gt Self Test Alarm Settings 4 20 mA Adjustment Adjust Date Time Communication Setup TOD Mode Adjustment More y 3 4 0 Ze es 557 OK 2 lt lt Communication Setup gt 4 20mA Communication Modbus Comm Modbus Comm gt Modbus Address Baud Rate Parity Stop Bits SensAlarm Plus HART Communications Board 5 2 3 Data Review Data review allows the examination of data stored by the unit Data reviews are available for the Test On Demand gas generating cell the z bean installed sensor Fault Currents Active Alarms Faults Riy Alm Fault SE Config Calibration Info and Communication Review Fault Currents Active Alarms Faults Rly Alm Fault Config Calibration Info Communication Review A 2 nd eo SA U NV 5 2 3 7 Communication Review 0K 4 2 lt Communications Review The Communication Review screen displays the present setting en Of the 4 20mA Current Loop SensAlert sensor ID or None un Depending on which Communications Option is installed None HART Modbus Comm or Modbus the display will vary Add 013 Baud 38400 Parity Even Stop 1 5 1 Menu Map 5 5 Communication Setup 5 5 1 4 20ma Communications 5 5 1 1 None 5 5 1 2 SensAlert Sensor ID 5 5 2 Hart Comm or Modbus or No Comm Installed 5 5 2 1 Hart Comm 5 5 2 1 1 No User Adjustments Through this Interface Use Current Loop 5 5 2 2 Modbus Comm 5 5 2 2 1 Modbus Address 5 5 2 2 2 Baud Rate 5 5
10. sidyne Document No 360 0128 01 SensAlarm Plus HART Communications Board e Refer to SensAlarm Plus User Manual P N 360 0126 01 The following section is reprinted from the SensAlarm Plus User Manual A properly installed HART Communication Board will indicate Hart Comm at step 5 2 5 5 If Modbus Comm Or No Comm Installed appears an improper Board has been installed in the monitor 5 2Main Menu As shown on the example display to the right the top level main menu allows the selection of several submenus documented below Selecting OK brings up the submenus 5 2 5 System Configuration The System Configuration menu provides a large number of functions for configuring the operation of the unit These include conducting a self test alarm and relay setup adjusting the 4 mA amp 20 mA outputs setting the date and time communications setup adjusting TOD cell functions setting combustible sensor parameters and setting a password 5 2 5 5 Communication Setup This menu provides adjustment for both standard and optional installed communications methods Options installed will be displayed Possible options are Hart Comm Modbus Comm If no Communications Option is installed Display will read No Comm Installed Sensidyne Document No 360 0128 01 Main Menu Calibration Mode Maintenance Mode Data Review Test On Demand gt System Configuration Lost Password System Configuration
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