SensAlert Plus Hart card 821-022
Contents
1. SENS ALER 1 PLUS HART Communications Board Highway Addressable Remote Transducer User Manual Document No 360 0095 01 Revision E A Y TWE Sensidyne LP 1000 112 Circle N Suite 100 St Petersburg Florida 33716 USA 800 451 9444 1 727 530 3602 1 727 539 0550 fax web www sensidyne com e mail info sensidyne com SensAlert Plus HART Communications Board e Field Installation Kit If you have ordered the field install kit p n 821 0220 02 you will need to install the HART Card into your SensAlert Plus transmitter as follows If not skip to Set Up 1 Disconnect Power 2 Open or Unscrew cover Note On the HD and XP Option when doing more than one transmitter keep cover and transmitter Body as a matched set Dummy Card G p HD and XP Sensidyne Document No 360 0095 01 Rev E 2 Gently unplug the Display Assembly and place it face down on a clean static free work surface REPLACE WITH HART CARD HD and XP SHOWN 4 Unscrew the Banana Plugs and remove the dummy Card Retain all hardware 5 Place the HART Card on the Hex Stand offs and gently couple the Electrical Plug into the jack on the Display Printed Circuit Board Assembly 6 Install the Banana Plugs into the Hex Stand offs Use two 1 4 wrenches to tighten Set Upper Display Assembly aside 7 Remove the Banana Jacks from the remaining assembly and remove the Relay Board to a2. Bits NoUsed Be Noue Bit NoUsed DIL Bii po Bi2 ZeoFakd Bi3 Calibration Stared O Bra CalibrationGood O Bis Calibration Faea Bi6 TODSaded Bi7 lrc Ze dd ME Bii ReayZlathing O Bi2 ReaySlathing o Bits Reay4lathing fea nousa Bi NoUsed Bi TODTesFalAodwe Bi7 TODFalEmble O O fee ne Bii Alam2 Active SS Bia Alarms Active SOS Bi8 Aaem Adve SOS Bi AamiEnaled Tf Bits AamZEnaed Bi6 AamSEnaed O oO Bi7 Aam tnaed ss Bi SensorMissing Enable SOS ata Sensor Fail Enae SOS Bits Sensor End of Lite Enable SOS Bi4 TOD End of Lie Enae Bts Loop Current Out of Tolerance FautEnabe Bre Calibration Mode Active Fault Enable Bi7 Maintenance Mode Active Fault Enable FR Bi sensorwmsm gy Bi SensorFal SSS Bi SemorEndolie Bi4 TODEndolie Bit5___ Loop Current OutOfTolerance SSS Bre Calibration Mode Active Bi7 Maintenance Mode Active Sensidyne Document No 360 0095 01 11 SensAlert 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
3. 2 5 5 If Modbus Comm Or No Comm Installed appears an improper Board has been installed in the transmitter 5 2 Main 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 i Sensidyne Document No 360 0095 0 li s N Ter Main Menu Calibration Mode Maintenance Mode Data Review Test On Demand gt System Configuration Lost Password K 0K 1 lt lt System Configuration gt Self Test Alarm Settings 4 20 mA Adjustment Adjust Date Time Communication Setup TOD Mode Adjustment more Bo 0K 1 2 lt lt Communication Setup gt 4 20mA Communication Modbus Comm ok 2 Modbus Comm gt Modbus Add
4. the HART host The action performed by the SensAlert Plus device in response to this command is outlined 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 12 Coil 20 Coil 21 Coil 22 Coil 23 Coil 24 Coil 25 Coil 26 Coil 27 Coil 31 Coil 40 Coil 41 Enable Disable Alarm 1 Enable Disable Alarm 2 Enable Disable Alarm 3 Enable Disable Alarm 4 Enable Disable Relay 1 Latching Enable Disable Relay 2 Latching Enable Disable Relay 3 Latching Enable Disable Relay 4 Latching Enable Disable TOD Fail Enable Disable Head Fail Enable Disable Sensor Missing Sensidyne Document No 360 0095 01 SensAlert Plus HART Communications Board For further information about the HAR
5. T Commands This section provides information about the implementation of the HART Protocol on the Sensidyne sensAlert Plus Transmitter 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 SensAlert Plus device Hart commands are divided as follows Universal Commands UC Common Practice Commands CPC and Device Specific Command DSC Universal Commands Mfg ID 81 Device Type 239 Device ID 001 SensAlert boards are not serialized all will report Device ID 001 1 B ar Primary Variable is Gas Concentration Dynamic variable 1 P y Appropriate units will be reported Loop current is reported in mA Dynamic variable 0 iind aba c omens Percent of range is reported in 96 Loop current is reported in mA Dynamic variable 0 Primary Variable is Gas Concentration Dynamic variable 1 Secondary Variable is TWA Gas Concentration Dynamic variable 2 Third Variable is Sensor Temperature Dynamic variable 3 Fourth Variable is Sensor Type Dynamic variable 4 and reported to the HART host i read from internal non volatile memory and reported to the HART host internal non volatile memory i i provided by the HART host are written to inter
6. T protocol contact the HART Communication Foundation at www hartcomm org HART Communication Foundation 9390 Research Blvd Suite 1 350 Austin TX 78759 Tel 512 794 0369 Fax 512 794 3904 Sensidyne Document No 360 0095 01 13 A FWE Sensidyne LP 1000 112 Circle N Suite 100 St Petersburg Florida 33716 USA 800 451 9444 1 727 530 3602 1 727 539 0550 fax web www sensidyne com e mail info sensidyne com V UKAS QUALITY MANAGEMENT 061
7. ccess the Power Plug on the Power Supply Board GP HD and XP 8 Add the Black Wire and the White Wire from the Hart Card to the Black and the White Wires in the Power Plug on the Power Supply Printed Circuit Board as shown Sensidyne Document No 360 0095 01 Rev E SensAlert Plus HART Communications Board BLACK WIRE 2 9 Reinstall the Relay Board and secure with the Banana Jacks For GP use two 1 4 wrenches to tighten G p HD and XP 10 Proceed with SET UP Sensidyne Document No 360 0095 01 Rev E SensAlert Plus HART Communications Board Set Up NOTE The HART Communications Board is installed at the factory and prewired to the Three wire Non IS Power Supply Board see Figure Make certain you preserve the prewired connections when you wire the power supply during transmitter installation Refer to Section 2 5 of the Transmitter User Manual PN 360 0087 02 HART communications wiring should connect to the labeled terminals of TP1 on the Three wire Non IS power supply board in the base of the transmitter Wired to Power Supply RTN Wired to Power Supply 4 20 mA Sensidyne Document No 360 0095 01 5 SensAlert Plus HART Communications Board e Refer to SensAlert Plus User Manual P N 360 0087 02 The following section is reprinted from the SensAlert Plus User Manual A properly installed HART Communication Board will indicate Hart Comm at step 5
8. nal non volatile memory Read unique identifier Read current and four predefined dynamic variables 8 Sensidyne Document No 360 0095 01 SensAlert 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 om ln m Primary Variable PV Gas Concentration Sensor Temperature Deg Celsius 16 bit value Converted to 32 bit float Ls Wmmsm as ts 14 Date of Last Calibration Year No Units Table Continued on next page Sensidyne Document No 360 0095 01 9 SensAlert Plus HART Communications Board Var Description Units 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 10 Sensidyne Document No 360 0095 01 SensAlert Plus HART Communications Board Command 48 Read Additional Device Status At the HART host s request 48 status bits l e 6 status bytes are reported to the hosts The table below lists the definitions of the 48 status bits reported by Command 48 Bi NoUsd Bi2 Nosed Bi3 nouse Bi4 NoUsed
9. ress Baud Rate Parity Stop Bits SensAlert Plus HART Communications Board T K lt 5 2 3 Data Review Data Review TOD Revi Data review allows the examination of data stored by the unit Data talis dp reviews are available for the Test On Demand gas generating cell the Fault Currents installed sensor Fault Currents Active Alarms Faults Rly Alm Fault Active Alarms Faults Config Calibration Info and Communication Review Rly Alm Fault Config Calibration Info Communication Review Ae 9 5 2 3 7 Communication Review OK1 2 lt lt Communications Review The Communication Review screen displays the present setting Mas Of the 4 20mA Current Loop SensAlert sensor ID or None idis Somos ise a Dr ensAlert Sensor ID 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 55 122 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 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 Sensidyne Document No 360 0095 01 7 SensAlert Plus HART Communications Board Implemented HAR
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