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GPS Questions

Garmin 430/530(W) to the EDM and FS-450.

Garmin 530 Port 5001 and the Garmin 430 Port 4001

Garmin 430/530(WAAS) pin # 56(tx) goes to EDM’s pin # 2(rx) or FS-450’s pin# 9(rx).

Garmin 430/530(WAAS) pin# 57(rx) to the EDM’s pin# 1(tx) or the FS-450 pin# 6(tx).

Programming the Garmin 430/530 and EDM/FS-450:

#1) Garmin program to: RS-232 Input Shadin FF and RS-232 Output Aviation Data formant. Since this Garmin input is now Shadin FF, then on both the EDM and FS-450 you must choose GPS-C=1. (Waypoint) You can not use GPS-C= 6 or 7. If you did you would get a ‘No RS-232 Data’ message on the Garmin.

#2) If you program the Garmin Input to Shadin FADC, (same Output –Aviation) then you will need to program the EDM and FS-450 to GPS-C= 6(waypoint) or 7 (destination). You can not use GPS-C=1 anymore. If you did you would get the ‘No RS-232 Data’ message on the Garmin.

Garmin 480 to an EDM?

See GNS 480 Installation Drawing RS-232 Interfaces Appendix D (D-11):

“Serial Port 1 (P1-4/5/23) or serial Port 5 (P5-1/21/41) may be used instead of serial Port 2 for F/ADC. GNS 480 RX serial port must be configured for FADC 9600 Baud. Transmit port must be configured for MAPCOM 9600 Baud.”

Set GNS 480 Port 2
MAP COM Output.
Input: FADC (9600 baud.).
Then set the EDM to GPS-C= 6(waypoint) or 7(destination)

Garmin 95XL hook up to JPI.

Garmin 95XL is a portable GPS.  Not designed to receive fuel flow data. 95XL pin #3 brown wire to pin#2(rx) on the EDM or pin# 9(rx) for the FS-450. The 95XL pin # 2 black wire MUST be connected to the same ground as the JPI. Only one wire used. No transmit(tx) connection from JPI to Garmin.

Program Garmin to NMEA 183 OUT. V2.0 (4800 baud rate) If the EDM or FS-450 senses NMEA-183 ‘Marine Navigation Data Format’ input, there will be no fuel data output(tx) to the GPS – so no ‘GPS-C’ setting needed for JPI units.

Garmin 96/96C

The Garmin 96/96C are portable GPS’s.  As such are not designed to receive (rx) fuel flow data. Only one wire used to transmit data from the Garmin to the EDM/FS-450.

Garmin ‘Data Out’ pin # (see Garmin manual for #) to pin#2(rx) on the EDM or pin# 9(rx) for the FS-450.

The Garmin ground – black wire -MUST be connected to the same ground as the JPI. ** Again, only one wire is used. No transmit (tx) connection from JPI to the Garmin.

These Garmin’s can supply NMEA output to the fuel totalizer, but do not have a way to display any fuel flow information. Program the Garmin to NMEA 183 OUT. V2.30 (4800 baud rate) If the EDM or FS-450 senses NMEA-183-  ‘Marine Navigation Data Format’ – input,  there will be no fuel data output(tx) to the GPS – so no ‘GPS-C’ setting needed for JPI units.

Lowrance 2000c Airmap GPS hookup to JPI.

Lowrance 2000c Data out to pin#2(rx) on the EDM or pin# 9(rx) for the FS-450. **Only one wire used. ** No transmit (tx) connection from JPI to GPS.

Program GPS to NMEA 183 OUT. (4800 baud rate) If the EDM or FS-450 senses NMEA-183 ‘Marine Navigation Data Format’ input, there will be no fuel data output (tx) to the GPS – so no ‘GPS-C’ setting needed for JPI units.

SkyForce AIM, KMD150

SkyForce pin# 11(tx) to the EDM’s pin # 2(rx) or FS-450’s pin# 9(rx).The SkyForce sends navigation data output to the EDM or FS-450, but they do not transmit any fuel data to the Skymap. So there is only one wire hookup – SkyForce tx to EDM or FS-450 rx only as above. Both instruments should be grounded at the same point.

To program the SkyForce, choose NMEA-183 (Marine Navigation Data Format) Baud rate 4,800. No programming of the EDM or FS-450. When these sense Northstar or NMEA-183 navigation data input, there will be no fuel data output.

SkyForce Skymap II / IIC / III

Skymap pin# 2(tx) to the EDM’s pin # 2(rx) or FS-450’s pin# 9(rx).The Skymap sends navigation data output to the EDM or FS-450, but they do not transmit any fuel data to the Skymap. So there is only one wire hookup – Skymap tx to EDM or FS-450 rx only as above. Both instruments should be grounded at the same point.

To program the Skymap, choose NMEA-183 (Marine Navigation Data Format) Baud rate 4,800. No programming of the EDM or FS-450. When these sense Northstar or NMEA-183 navigation data input, there will be no fuel data output.

‘NO – COM’

“NO – COM” message and measurements ‘REQ’, ‘RES’, and ‘MPG’ are missing.

Communications are received by EDM and the Auto-Protocol setup is in process. Verify correct output format setup in GPS receiver; check GPS connections.

‘NO – SIG’

‘NO – SIG’ message and measurements ‘REQ’, RES, and ‘MPG’ are missing.

GPS receiver has insufficient signal for valid data.

‘NO – WPT’

”NO – WPT’ message and measurements ‘REQ’, ‘RES’ are missing.

No waypoints are programmed into the aircraft GPS receiver.

‘— REQ’ or ‘— RES’

‘— REQ’ or ‘— RES’  message.

Your ground track is more than +/- 70 degrees from your course to the next GPS waypoint.

‘REQ’,’RES’, and ‘MPG’ missing.

Measurements ‘REQ’, ‘RES’, and ‘MPG’ are all missing from the scan.

No communications from GPS receiver to EDM. Possibly no connection or aircraft GPS is off.

II Morrow NMS-2001 & NMC-2001

Transmit (TX) pins: 19/37


NO Rec (RX) from the EDM or FS-450. * There is no programming of EDM or FS-450*

* Try pin #37 — Standard Data Format 9600 Baud — no Fuel page on these Morrow’s.

II Morrow 820

Transmit (TX) #6  only .

No Rec (RX) – No programming needed on the EDM or FS-450.

Garmin GPS 400(W)

Garmin GPS 400(W) Port 4001

Garmin GPS 400 (WAAS) pin # 56(tx) goes to EDM’s pin # 2(rx) or FS-450’s pin# 9(rx).

Garmin GPS 400 (WAAS) pin# 57(rx) to the EDM’s pin# 1(tx) or the FS-450 pin# 6(tx).

PROGRAMMING the Garmin GPS 400 and EDM/FS-450:

#1) Garmin program to: RS-232 Input Shadin FF and RS-232 Output Aviation Data formant. If you have another port already set to aviation you will need to parallel that port as only one port can be set to aviation output. Since this Garmin input is now Shadin FF, then on both the EDM and FS-450 you must choose GPS-C=1. (Waypoint) You can not use GPS-C= 6 or 7. If you did you would get a ‘No RS-232 Data’ message on the Garmin.

#2) If the Garmin can be programmed for ‘Input’ to Shadin FADC, (same Output –Aviation) then you will need to program the EDM and FS-450 to GPS-C= 6(waypoint) or 7 (destination). You can not use GPS-C=1 anymore. If you did you would get the ‘No RS-232 Data’ message on the Garmin.

Garmin 196/296/396/495/496

The Garmin 196/296/396/495/496 are portable GPS’s.  As such are not designed to receive (rx) fuel flow data.

Garmin ‘Data Out’ pin #1 blue wire to pin#2(rx) on the EDM

Garmin ‘Data Out’ pin #1 blue wire to pin# 9(rx) for the FS-450.

The Garmin ground – black wire -MUST be connected to the same ground as the JPI. ** Only one wire used. No transmit (tx) connection from JPI to Garmin.

Program Garmin to NMEA 183 OUT. V2.30 (4800 baud rate) If the EDM or FS-450 senses NMEA-183 ‘Marine Navigation Data Format’ input, there will be no fuel data output(tx) to the GPS – so no ‘GPS-C’ setting needed for JPI units.

Garmin 150,155,55TX,165, 250, 250XL,30,300XL

Garmin pin #24(tx) goes to EDM’s pin # 2(rx) or FS-450’s pin# 9(rx).

Garmin pin# 17(rx) to the EDM’s pin# 1(tx) or the FS-450 pin# 6(tx).

Programming the Garmin and EDM/FS-450:

#1) Garmin program to: RS-232 Input Shadin FF and RS-232 Output Aviation Data formant. Since this Garmin input is now Shadin FF, then on both the EDM and FS-450 you must choose GPS-C=1. (Waypoint) You can not use GPS-C= 6 or 7. If you did you would get a ‘No RS-232 Data’ message on the Garmin.

#2) If you program the Garmin Input to Shadin FADC, (same Output –Aviation) then you will need to program the EDM and FS-450 to GPS-C= 6(waypoint) or 7 (destination). You can not use GPS-C=1 anymore. If you did you would get the ‘No RS-232 Data’ message on the Garmin.

What data is transmitted from the EDM to the GPS?

The EDM gives fuel REM, fuel USD, and FF. 

** [[OAT data also if the EDM has an OAT probe and the GPS is programmed for: ‘RS-232 Input: Shadin FADC’. No OAT data will be transmitted to the GPS if the GPS is programmed: Input: ‘Shadin FF’.]]

Benix/King KLN-900

King pin # 6(tx) goes to EDM’s pin # 2(rx) or FS-450’s pin# 9(rx).

King pin# 38(rx) to the EDM’s pin# 1(tx) or the FS-450 pin# 6(tx).

Programming the King and EDM/FS-450:

#1) King program to: Format A, then on both the EDM and FS-450 you must choose GPS-C=3. (Waypoint – Arnav/EI fuel data)

#2) King program to: Format B, then on both the EDM and FS-450 you must choose GPS-C=2. (Waypoint -Allied Signal) [ **Recommended format.** ]

#3) King program to: Format C, then on both the EDM and FS-450 you must choose GPS-C=4. (Waypoint -Allied Signal)

Benix/King KLN-89B

King pin # 2(tx) goes to EDM’s pin # 2(rx) or FS-450’s pin# 9(rx).

King pin# 1(rx) to the EDM’s pin# 1(tx) or the FS-450 pin# 6(tx).

Programming the King and EDM/FS-450:

#1) King program to: Format A, then on both the EDM and FS-450 you must choose GPS-C=3. (Waypoint – Arnav/EI fuel data)

#2) King program to: Format B, then on both the EDM and FS-450 you must choose GPS-C=2. (Waypoint -Allied Signal) [ **Recommended format.** ]

#3) King program to: Format C, then on both the EDM and FS-450 you must choose GPS-C=4. (Waypoint -Allied Signal)

Benix/King KLN-35

King pin # 12(tx) goes to EDM’s pin # 2(rx) or FS-450’s pin# 9(rx).

The King sends navigation data output to the EDM or FS-450, but they do not transmit any fuel data to the King. So there is only one wire hookup – King tx to EDM or FS-450 rx only as above. Both instruments should be grounded at the same point.

To program the King, choose NMEA-183 (Marine Navigation Data Format) Baud rate 4,800. No programming of the EDM or FS-450 is done. When they sense Northstar or NMEA-183 navigation data input, there will be no fuel data output.

Benix/King KLN-94

King pin # 2(tx) goes to EDM’s pin # 2(rx) or FS-450’s pin# 9(rx).

King pin# 1(rx) to the EDM’s pin# 1(tx) or the FS-450 pin# 6(tx).

Programming the King and EDM/FS-450:

#1) King program to: Format A, then on both the EDM and FS-450 you must choose GPS-C=3. (Waypoint – Arnav/EI fuel data)

#2) King program to: Format B, then on both the EDM and FS-450 you must choose GPS-C=2. (Waypoint -Allied Signal) [ **Recommended format.** ]

#3) King program to: Format C, then on both the EDM and FS-450 you must choose GPS-C=4. (Waypoint -Allied Signal)

Bendix/King KLN-90/90A/90B

King pin #13(tx) goes to EDM’s pin # 2(rx) or FS-450’s pin# 9(rx).

King pin# 36(rx) to the EDM’s pin# 1(tx) or the FS-450 pin# 6(tx).

Programming the King and EDM/FS-450:

#1) King program to: Format A, then on both the EDM and FS-450 you must choose GPS-C=3. (Waypoint – Arnav/EI fuel data)

#2) King program to: Format B, then on both the EDM and FS-450 you must choose GPS-C=2. (Waypoint -Allied Signal) [ **Recommended format.** ]

#3) King program to: Format C, then on both the EDM and FS-450 you must choose GPS-C=4. (Waypoint -Allied Signal)

King KLN-135 to JPI

King: Transmit(tx) pin#10 —- No Receive(rx) from JPI. Use only one wire. No programming on JPI. If the EDM or FS-450 senses Northstar or  NMEA-183 ‘Marine Navigation Data Format’ input, there will be no fuel data output(tx) to the GPS – so no ‘GPS-C’ setting needed for JPI units

Arnav R-21 LORAN

Arnav R-21 LORAN  pin#3 out to pin#2(rx) on the EDM or pin# 9(rx) for the FS-450. **Only one wire used.** No Receive(rx) from JPI. Connected to the same ground as the JPI.

No programming on JPI. If the EDM or FS-450 senses Northstar or  NMEA-183 ‘Marine Navigation Data Format’ input, there will be no fuel data output(tx) to the GPS – so no ‘GPS-C’ setting needed for JPI units.

Apollo 360

Apollo pin# ?(tx) to the EDM’s pin # 2(rx) or FS-450’s pin# 9(rx).The Apollo sends navigation data output to the EDM or FS-450, but they do not transmit any fuel data to the Apollo. So there is only one wire hookup – Apollo tx to EDM or FS-450 rx only as above. Both instruments should be grounded at the same point.

To program the Apollo, choose NMEA-183 (Marine Navigation Data Format) Baud rate 4,800. No programming of the EDM or FS-450. When these sense Northstar or NMEA-183 navigation data input, there will be no fuel data output.

No RS-232 Data’ message on the GPS

Garmin:  Input: ‘Shadin FF’          Output: ‘Aviation’ –   > EDM: GPS-C= 1

** (You can not use GPS-C= ‘6’ or ‘7’ if you choose ‘Shadin FF’ for the Garmin. If you do, you will get a ‘No RS-232 Data’ message on the GPS)

 (Or)

Garmin: Input: ‘Shadin FADC’    Output: ‘Aviation’.  –  EDM: MUST use GPS-C= 6 or 7.

** (You can not use GPS-C= ‘1’ if you choose ‘Shadin FADC’ for the Garmin. If you do, you will get a ‘No RS-232 Data’ message on the GPS)

EDM is not sending out any data to GPS

  • If the GPS is sending NMEA-183 (not an aviation format), the EDM-700/760/800 will not send any output.
  • Check that the baud rates are the same between input and output.

What do the EDM’s GPS Error messages mean?

• NO – COM message and parameters REQ, RES, & MPG are missing., Communications are received by EDM and the Auto-Protocol setup is in process. Verify correct output format setup in GPS receiver; check GPS connections.

• NO – SIG message and parameters REQ, RES, & MPG are missing., GPS receiver has insufficient signal for valid data.

• NO – WPT message and parameters REQ & RES, are missing., No waypoints are programmed into the aircraft GPS receiver.

• – – – REQ  or – – – RES message, Your ground track is more than ?70° from your course to the next GPS waypoint.

GPS: EDM is not sending out any data.

 

#1) If the GPS is sending NMEA-183 (not an aviation format – Marine Navigation Data Format – 4800 baud), the FS-450 or EDM-700 will sense this and there will be no fuel data output.

#2) Check that the baud rates are the same between input and output.

#3) Also program the EDM/FS and the Garmin correctly:

Garmin: Input: Shadin FF   > then the EDM: GPS-C= 1
Output: Aviation Data Output
(or)
Garmin: Input: Shadin FADC > EDM:  GPS-C= 6 or 7
Output: Aviation Data Output.

** (Can not use ‘1’ if you choose FADC for the Garmin – if you do you will get a ‘No RS-232 Data’ message on the GPS)

#4) Check for fluctuating voltage on the FS-450 or EDM fuel flow harness ‘Out to GPS’ wire. (Should see a -5v to -7v ‘burp’ type fluctuating voltage signal.)

How to connect a GX50/55/60/65 Apollo?

 

FOR THE GX50/60/65:

  • P1 use pin#5(tx) and pin#4(rx)
  • P2 use pin#22(tx) and pin#21(rx)
  • PROGRAM THE GX FOR FADC.

FOR THE FS-450:

  • RS-232 IN(RX) PIN#9
  • RS-232 OUT(TX) PIN#6
  • PROGRAM THE FS-450 TO GPS-C= 6 OR 7

FOR THE EDM-700/800:

  • RS-232 IN(RX) PIN#2
  • RS-232 OUT(TX) PIN#1
  • PROGRAM THE EDM-700/800 TO GPS-C= 6 OR 7

FOR THE EDM-900/930:

  • RS-232 IN(RX) PIN#2
  • RS-232 OUT(TX) PIN#1
  • PROGRAM THE EDM-900/930 TO GPS-C= 6 OR 7     *( SEE YOUR PILOTS GUIDE FOR INSTRUCTIONS ON CHANGING YOUR GPS-C SETTING)

 GX INPUT: SHADIN ‘S’         OUTPUT: AVIATION
FS-450 OR EDM/700/800/760: GPS-C=6 OR 7.  ‘6’ IS TO WAYPOINT ONLY AND ‘7’ TO DESTINATION ONLY.

** NEW GX’s USE ‘SHADIN FADC’ **

FS-450 and a Garmin GNS 420 reading error.

 

If you are using both the FS-450 and the GNS420 in the unit litres, and the transmitted value in the GNS 420 shows wrong by the factor 0.37. For example:

FS-450 FOB equals 40 Liters but the Garmin 420 FOB equals 15 Liters.  We believe the GNS 420 misinterprets the 40 transmitted as 1/10th of a Gallon and converts it into Litres E.g.  40 x 0.1 GAL * 3.7 [Litres per GAL] = 15 Litres.

Your FS-450 will have to come into the factory for software upgrade.  Contact JPI Tech Support at 800-345-4574 to arrange for upgrade.

Why does the EDM show “NO SIG” occasionally?

This can happen when there is no ground speed being output from the GPS.

How do you set the GPS-C Communications Output Format?

 

1. Go to pilot program mode (Hold both buttons to see PROGRAM).
2.Tap STEP and see GPS-C = 0 … 8. (Older instruments only have options 0 – 6)
3. Tap or hold LF to change the number to one of the following:

  • 0, No fuel data output
  • 1, Garmin (Shadin format)
  • 2, Bendix (Allied Signal) (format B) “To waypoint only”
  • 3, Arnav/EI fuel data
  • 4, Bendix (Allied Signal) (format C)
  • 5, Not used
  • 6, UPS/Garmin 430/530  GNX-80/GX-60 “To waypoint only”
  • 7, UPS/Garmin 430/530  GNX-80/GX-60 “To Destination only”
  • 8, Bendix (Allied Signal) (format B) “To Destination only”

4. Tap STEP repeatedly to END Y.

Trimble TNL2000 GPS to EDM-700/760/800?

  • Using serial port 1: TNL P1 pin 3 to EDM-700/760/800  P3/FF pin 2, no connections to EDM-700/760/800 P3/FF pin 1. Set TNL serial-1 out: R0 (but will work with K0, K1, R0 and R1), 9600, 1 sec update.
  • Using serial port 2: TNL P1 pin 5 to EDM-700/760/800  P2 pin 2, no connections to EDM-700/760/800 P3/FF pin 1. Set TNL serial-2 out: R0 (but will work with K0, K1, R0 and R1), 9600, 1 sec update.
  • Serial port 1 or 2 inputs are not connected to EDM-700/760/800.

Northstar M3P RS-232 to JPI EDM?

Connect their pin# 6 on the Northstar M3P to RS422 (pin may be called RS-422A or SDA – *also RS-485 OK) to JPI EDM pin 2(rx) on the fuel flow connector or the FS-450’s pin# 9(rx).
Northstar pin SDB pin 11 should be left open.

**No programming of the EDM or FS-450 necessary because when these sense Northstar or NMEA-183 navigation data input, there will be no fuel data output.

How do you know if the interface between the fuel flow and the GPS is working?

If you get REM, RES or MPG messages during scan, it is working.

How do I connect a Garmin GPS to JPI EDM?

  • Set EDM-700/760/800 GPS-C=1. Set Garmin to “Shadin fuel flow”.
  • Alternate: set EDM-700/760/800  GPS-C=3. Set Garmin to “Arnav/EI.”
  • Connect Garmin 195 pin 4 (blue) to EDM-700/760/800  P1 pin 2.

How do I program Garmin 155 GPS for use with JPI EDM?

Select Aviation Format or Moving Map format from GPS.

Arnav 5000 GPS or Loran to EDM-700/760/800 and FS-450?

For the EDM-700/800/760:
• Arnav pin 5(tx) to EDM pin 2.(rx)
• Arnav pin 4(rx) to EDM pin 1.(tx)

For the FS-450:
• Arnav pin 5(tx) to FS pin 9.(rx)
• Arnav pin 4(rx) to FS pin 6 (tx)

How should I program my EDM-700/760/800 for my GPS?

JPI EDMs use Pin#1 for RS-232 output (to GPS) and Pin#2 RS-232 input (from GPS)

GPS Comm Format Setting:

  • 0, No fuel data output
  • 1, Garmin (Shadin format)
  • 2, Bendix (Allied Signal) (format B) “To waypoint only”
  • 3, Arnav/EI fuel data
  • 4, Bendix (Allied Signal) (format C)
  • 5, Not used
  • 6, UPS/Garmin 430/530  GNX-80/GX-60 “To waypoint only”
  • 7, UPS/Garmin 430/530  GNX-80/GX-60 “To Destination only”
  • 8, Bendis (Allied Signal) (format B) “To Destination only”

Allied Signal, Bendix/King (KLN , 88 loran, 89 or KLN 90), how to program?

• Set FS-450 OR EDM-700 GPS-C=2.  Set GPS receiver to “Format B.”

• Alternate: set FS-450 OR EDM-700 GPS-C=3. Set receiver to “Format A.”

• Alternate: set FS-450 OR EDM-700 GPS-C=4. Set receiver to “Format C.”