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Honeywell SS4-A HART User Manual Download Page 13

 

Page 13 of 14 

 

7  HART Module Connections 

Follow the steps below to connect a single HART module to a HART Master. 

 

1.  Turn off power to the detector. 
2.  Connect HART signaling line to J102 pins #2 and #3. 
3.  If you need current-source signaling in addition to HART, turn on both S100 

switches by pressing them down (toward the circuit board). 

4.  Connect the positive terminal of your current load to J102 pin #2 (this is the 

pin next to the ground pin). 

5.  Connect the return terminal of the current loop to J102 pin #1 (this is the 

ground pin).  Ensure that nominal loop resistance is approximately 250 ohms. 

6.  Turn on 24 volt DC power to the detector. 

 

In the event you need to configure a multi-drop HART network, contact the 
factory for further guidance. 

 

 

Summary of Contents for SS4-A HART

Page 1: ...Page 1 of 14 User Guide SS4 A HART ...

Page 2: ...Page 2 of 14 Revision History Author Revision Date Comments T Lapp A April 19 2013 Initial release ...

Page 3: ...ommand 1 6 3 3 Command 2 6 3 4 Command 3 7 3 5 Command 6 8 3 6 Command 7 8 3 7 Command 8 9 3 8 Command 12 9 3 9 Command 13 9 3 10 Command 14 9 3 11 Command 15 10 3 12 Command 16 11 3 13 Command 20 11 3 14 Command 50 11 4 LED Indication 12 5 HART Module Address 12 6 HART Module Mounting 12 7 HART Module Connections 13 ...

Page 4: ...st that matches the short address assigned by the rotary switch or long address a combination of device type and serial number Pin 2 and Pin 3 of J102 of this module are used for HART communication Current loop 4 20 ma is sourced from Pin 2 when switches at S100 are ON and ground is the current return point See below for connection details 2 4 20 ma of SS4 This FSCHCOM SS4 is providing 4 20ma anal...

Page 5: ...lling address to the FSCHCOM module Once software polling address is written into the FSCHCOM the address is saved into flash memory until over written by next command 6 Byte Format Description 0 Unsigned 8 Must be Decimal 254 Hex FE 1 to 2 Code Device Type Hex E1 80 3 Unsigned 8 Minimum number of preambles byte from master 5 4 Unsigned 8 HART Major Revision 7 5 Unsigned 8 Device Revision Level 0 ...

Page 6: ...ult 4 ma Normal 20 ma Alarm 3 3 Command 2 Use command 2 to read Loop current ignore percent range Response to command 2 The loop current always matches the current that can be measured by milli ammeter in series with the device This includes the loop current under alarm conditions SS4 flame sensors does not have percent value therefore please ignore the percent output of this response Byte Format ...

Page 7: ...nit code for ma Variable 1 5 to 8 Float Variable 1 Voltage Fault 4 ma Normal 20ma Voltage Fault either too low or too high 9 Code Unit code for ma Variable 2 10 to 13 Float Variable 2 Temperature Fault 4 ma Normal 20ma Temperature too high 14 Code Unit code for ma Variable 3 15 to 18 Float Variable 3 Self test and lid off 4 ma Normal 20ma Self Test Fail window dirty and or Lid is off 19 Code Unit ...

Page 8: ... SS4HCOM will save the newly assigned short address to flash memory and use the newly assigned short address until power off Upon power on the SS4HCOM module will first read the rotary switch RSW1 If the RSW1 is in position 0 the SS4HCOM will read back the saved short address If the RSW1 is in position other than 0 I e 1 2 3 4 5 A B C D E F the position number will be used as short address 3 6 Com...

Page 9: ...d code 3 Code 0 for undefined code 3 8 Command 12 Use command 12 to read the message contained within the FSCHCOM module Response to command 12 Byte Format Description 0 to 23 Packed ASCII Alpha numeric message 3 9 Command 13 Use command 13 to read Tag Descriptor Date of release Response to command 13 Byte Format Description 0 to 5 Packed string TAG 6 to 15 Packed string Description 18 20 Date Dat...

Page 10: ... Limit is Hex 00 00 00 00 3 11 Command 15 This command is not applicable for Flame Sensors However this FSCHCOM will still respond to this command with all zero Response to command 15 Byte Format Description 0 Code Code 0 High priority 1 Code Code 0 Undefined 2 Code Code 0 Undefined 3 to 6 Float Upper range value 20 ma 7 to 10 Float Lower range value 0 ma 11 to 14 Float Damping Factor 0 Not Applic...

Page 11: ...00 00 00 Not applicable 3 13 Command 20 Use this command to read long tag Response to command 20 Byte Format Description 0 to 31 string Long Tag FSHCOM MODULE SS4 3 14 Command 50 This command is not applicable for Flame Sensors However this FSCHCOM will still respond to this command with all zero Response to command 50 Byte Format Description 0 Unsigned 8 Code 0 undefined 1 Unsigned 8 Code 0 undef...

Page 12: ...A B C D E F Placing RSW1 to position 1 2 3 to F you are putting the devices in hardware address mode Hardware address will override software address Placing RSW1 to position 0 you are putting the devices in software addressing mode You can use command 6 to write polling address to the FSCHCOM module Once software polling address is written into the FSCHCOM the address is saved into flash memory un...

Page 13: ...both S100 switches by pressing them down toward the circuit board 4 Connect the positive terminal of your current load to J102 pin 2 this is the pin next to the ground pin 5 Connect the return terminal of the current loop to J102 pin 1 this is the ground pin Ensure that nominal loop resistance is approximately 250 ohms 6 Turn on 24 volt DC power to the detector In the event you need to configure a...

Page 14: ...lon Science Valley I 43 Digital Ro 34 Gil Guro Gu Seoul 152 729 Korea Tel 82 0 2 6909 0300 Fax 82 0 2 2025 0328 analytics ap honeywell com Technical Services EMEAI HAexpert honeywell com US ha us service honeywell com AP ha ap service honeywell com Please Note While every effort has been made to ensure accuracy in this publication no responsibility can be accepted for errors or omissions Data may ...

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