- Off-Highway Truck/Tractor:
- 797 (S/N: 5YW1-UP)
- 797B (S/N: JSM1-UP)
Reference: Systems Operation, RENR2630, "Vital Information Management System (VIMS)"
Reference: Service Magazine, SEPD0695, "New VIMS Version 10.4 Class of Onboard Software"
In order to update to the new VIMS 10.43 class of onboard software, the update to the steering quad gauge will have to be completed. If the steering quad gauge update is not fully completed the VIMS 10.43 class of onboard software will not work properly. For further information regarding the necessary update refer to SIS Web: SEBE8912.
This article summarizes the improvements and enhancements of the new VIMS 10.43 class of onboard flash software. This new software includes changes to the steering controls and warnings and the brake controls and warnings. The new software also addresses the change from the current quad gauge that includes the "Steering Oil Level" indicator to the new quad gauge that uses the "Torque Converter Oil Temperature" indicator.
Note: Prior to the installation of the 10.43 class of onboard software record the service meter reading, record the odometer reading and download and reset all VIMS data including cumulative and histogram data. Failure to do this can result in lost, incorrect and negative readings. Caterpillar recommends to follow the "VIMS Software Update Checklist" outlined in Troubleshooting Testing and Adjusting, RENR2631.
Software Features
- Payload Site Calibration feature allows adjustment of one of the onboard coefficients. Caterpillar does not recommend to adjust this value on your own. A payload study must be completed by a Caterpillar Scale Truck. All set values must be obtained from VIMS Product Support.
- CAN Port downloading capability (IP radio network Minestar only)
- TKPH stands for Tonne-Kilometer Per Hour and TMPH stands for Ton-Miles Per Hour. TKPH/TMPH is a measure used by tire manufactures linking payload, ground speed, ambient temperature and loaded travel time in order to provide a warning system. The warning system alerts the operator when the tires have exceeded TKPH/TMPH values that can lead to tire damage. If the TKPH/TMPH value is exceeded, the speed of the truck will be limited. If the TKPH/TMPH value for a particular tire is exceeded, the tire will overheat and may eventually fail. The values can be adjusted by the dealer through a collaborative relationship between the tire manufacturer and the customer. The setup and operations of TKPH/TMPH will be discussed later in the article.
- Ability to turn Second Gear Reweigh on/off using the PAYCONF (7292663) menu. The default for Second Gear Reweigh is "ON".
- Ability to set Conditional Datalogger to yes/no using the PAYCONF (7292663) menu. Setting the Conditional Datalogger to yes will automatically turn on a datalogger in the "Loading" and "Traveling Loaded" condition. Once the 30 minutes of datalogger is used the datalogger will stop. In order to collect more data the datalogger will need to be downloaded and/or reset. The PAYCONF menu provides the following 6 options:
- Target Weight
- Last Pass Indication
- Overload %
- Scoreboard Extended Message Modes
- Second Gear Reweigh Disable Option
- Conditional Datalogger
- Machine Specific Attachment Codes reduce need for additional VIMS configurations. Refer to the following tables for the appropriate attachment code. This option is activated by using the ATTACH (288224) menu.
| 797 ATTACHMENT CODES (Both A & B Models) | |||
|---|---|---|---|
| Attachment Code | Fuel Tank Capacity | RAC Enabled | TKPH Enabled |
| 1 | 1100 gal | No | No |
| 2 | 1600 gal | No | No |
| 3 | 1800 gal | No | No |
Note: A haul truck configured with a fuel tank attachment code of 1, 2, or 3 will not have a RAC or TKPH configuration. For example: 1 = 1100 gallon fuel tank only.
| 797 ATTACHMENT CODES (Both A & B Models) | |||
|---|---|---|---|
| Attachment Code | Fuel Tank Capacity | RAC Enabled | TKPH Enabled |
| 41 | 1100 gal | Yes | No |
| 42 | 1600 gal | Yes | No |
| 43 | 1800 gal | Yes | No |
Note: A haul truck configured with a two digit fuel tank attachment code that begins with the number 4 will have a RAC only configuration. For example: 41 = 1100 gallon fuel tank; RAC enabled.
| 797 ATTACHMENT CODES (Both A & B Models) | |||
|---|---|---|---|
| Attachment Code | Fuel Tank Capacity | RAC Enabled | TKPH Enabled |
| 51 | 1100 gal | No | Yes |
| 52 | 1600 gal | No | Yes |
| 53 | 1800 gal | No | Yes |
Note: A haul truck configured with a two digit fuel tank attachment code that begins with the number 5 will have a TKPH only configuration. For example: 51 = 1100 gallon fuel tank; TKPH enabled.
| 797 ATTACHMENT CODES (Both A & B Models) | |||
|---|---|---|---|
| Attachment Code | Fuel Tank Capacity | RAC Enabled | TKPH Enabled |
| 61 | 1100 gal | Yes | Yes |
| 62 | 1600 gal | Yes | Yes |
| 63 | 1800 gal | Yes | Yes |
Note: A haul truck configured with a two digit fuel tank attachment code that begins with the number 6 will have a RAC and TKPH configuration. For example: 61 = 1100 gallon fuel tank; RAC enabled; TKPH enabled.
TKPH/TMPH Setup and Operations
When the Attachment code of 5 or 6 is enabled additional parameters are then displayed on the VIMS Message Center. After the Attachment Code is entered and a key cycle is completed, the VIMS Message Center will show the following additional parameters.
- TKPH F (983)
- TKPH R (984)
Consult the tire manufacturer to determine what the TKPH/TMPH rating is for the size of tire for the machine. For machine weights and axle splits consult your latest payload study.
Once this information has been obtained follow the instructions below:
Use Caterpillar Electronics Technician (ET) in order to access the programmable parameters. First select the VIMS Main Module. Then select the Configuration menu. Refer to table 5 for the nine additional programmable parameters that will be available.
| TKPH/TMPH Programmable Parameters | |
|---|---|
| Machine Weight Speed Averaging Duration | Suggested 4 hours |
| Empty Machine Weight | Tonnes |
| Empty Machine Rear Axle Weight Distribution | % Rear |
| Loaded Machine Rear Axle Weight Distribution | % Front |
| Machine Speed Limit Activation Front Tires Threshold | F TKPH/TMPH Rating |
| Machine Speed Limit Deactivation Front Tires Threshold | F TKPH/TMPH Rating - 100 |
| Machine Speed Limit Activation Rear Tires Threshold | R TKPH/TMPH Rating |
| Machine Speed Limit Deactivation Rear Tires Threshold | R TKPH/TMPH Rating - 100 |
| Machine Tire Weight-Speed Machine Speed Limit | TKPH/TMPH Machine Speed Limit |
Once the above information is complete the TKPH/TMPH event structure will be set up.
When the TKPH/TMPH rating for either front or rear exceeds the TKPH/TMPH value a message will appear informing the operator to reduce speed. If the value is then exceeded for ten minutes the maximum speed of the truck will become limited in order to allow the tires to cool down. This limit will not take effect until the operator has slowed to the new limit. The TKPH/TMPH Speed Manager will continue to monitor the tires. The operator will be able to release the speed limit when the tires have sufficiently cooled.
Note: If the truck is traveling above the maximum speed limit imposed by TKPH/TMPH, the limit will not take effect until the operator goes below the set speed limit. For safety reasons the truck will not automatically slow to the maximum speed dictated by TKPH/TMPH. After deactivation the operator must press the "OK" key to return to normal operation.
Fixed Issues
- Enhanced Communication for Minestar wireless CAN data transfer
- Changes to ground speed values to prevent early second gear reweigh overload events
- All RAC events are Esettable via the ESET (3738) menu functionality. (Refer to Table 6)
| RAC Esettable Events | ||||||
|---|---|---|---|---|---|---|
| Event # | Parameter | Warning Level | Operation | Actuate | Deactuate | RAC Severity |
| 3111 | MAX BIAS/SEC | 1 | < | -17000 | -15500 | 1 |
| 3112 | MAX BIAS/SEC | 1 | >= | 17000 | 15500 | 1 |
| 3113 | MAX BIAS/SEC | 2 | < | -18000 | -16500 | 1 |
| 3114 | MAX BIAS/SEC | 2 | >= | 18000 | 16500 | 1 |
| 3123 | MAX PITCH/SEC | 1 | < | -14000 | -12500 | 1 |
| 3124 | MAX PITCH/SEC | 1 | >= | 14000 | 12500 | 1 |
| 3125 | MAX PITCH/SEC | 2 | < | -15000 | -13500 | 1 |
| 3126 | MAX PITCH/SEC | 2 | >= | 15000 | 13500 | 1 |
| 3135 | MAX RACK/SEC | 1 | < | -18000 | -16500 | 1 |
| 3136 | MAX RACK/SEC | 1 | >= | 18000 |
16500 | 1 |
| 3137 | MAX RACK/SEC | 2 | < | -19000 | -17500 | 1 |
| 3138 | MAX RACK/SEC | 2 | >= | 19000 | 17500 | 1 |
| 3115 | MAX BIAS/SEC | 1 | < | -19000 | -17500 | 2 |
| 3116 | MAX BIAS/SEC | 1 | >= | 19000 | 17500 | 2 |
| 3117 | MAX BIAS/SEC | 2 | < | -20000 | -18500 | 2 |
| 3118 | MAX BIAS/SEC | 2 | >= | 20000 | 18500 | 2 |
| 3127 | MAX PITCH/SEC | 1 | < | -16000 | -14500 | 2 |
| 3128 | MAX PITCH/SEC | 1 | >= | 16000 | 14500 | 2 |
| 3129 | MAX PITCH/SEC | 2 | < | -17000 | -15500 | 2 |
| 3130 | MAX PITCH/SEC | 2 | >= | 17000 | 15500 | 2 |
| 3139 | MAX RACK/SEC | 1 | < | -20000 | -18500 | 2 |
| 3140 | MAX RACK/SEC | 1 | >= | 20000 | 18500 | 2 |
| 3141 | MAX RACK/SEC | 2 | < | -21000 | -19500 | 2 |
| 3142 | MAX RACK/SEC | 2 | >= | 21000 | 19500 | 2 |
| 3119 | MAX BIAS/SEC | 1 | < | -21000 | -19500 | 3 |
| 3120 | MAX BIAS/SEC | 1 | >= | 21000 | 19500 | 3 |
| 3121 | MAX BIAS/SEC | 2 | < | -22000 | -20500 | 3 |
| 3122 | MAX BIAS/SEC | 2 | >= | 22000 | 20500 | 3 |
| 3131 | MAX PITCH/SEC | 1 | < | -18000 | -16500 | 3 |
| 3132 | MAX PITCH/SEC | 1 | >= | 18000 | 16500 | 3 |
| 3133 | MAX PITCH/SEC | 2 | < | -19000 | -17500 | 3 |
| 3134 | MAX PITCH/SEC | 2 | >= | 19000 | 17500 | 3 |
| 3143 | MAX RACK/SEC | 1 | < | -22000 | -20500 | 3 |
| 3144 | MAX RACK/SEC | 1 | >= | 22000 | 20500 | 3 |
| 3145 | MAX RACK/SEC | 2 | < | -23000 | -21500 | 3 |
| 3146 | MAX RACK/SEC | 2 | >= | 23000 | 21500 | 3 |
| Payload Speed Manager Esettable Events | |||||
|---|---|---|---|---|---|
| Event # | Parameter | Warning Level | Operation | Actuate | Deactuate |
| 2915 | Payload 110% | 2 | > | 0 | 500.0000075 |
| 2916 | Payload 120% | 2 | > | 0 | 500.0000075 |
| 2917 | Payload 120% 2nd Gear | 2S | > | 0 | 500.0000075 |
| Final Drive Pinion Torque Values on Selected Machines | |||||
|---|---|---|---|---|---|
| Event # | Parameter | Warning Level | Operation | Actuate | Deactuate |
| 3400 | FNLDRV PIN TORQ | 2 | < | -135000 | -130000 |
| 3401 | FNLDRV PIN TORQ | 2 | > | 135000 | 130000 |
| 3402 | FNLDRV PIN TORQ | 2 | < | -145000 | -140000 |
| 3403 | FNLDRV PIN TORQ | 2 | > | 145000 | 140000 |
| 3404 | FNLDRV PIN TORQ | 2 | < | -150000 | -145000 |
| 3405 | FNLDRV PIN TORQ | 2 | > | 150000 | 145000 |
Note: Final Drive Pinion Torque is only available on machines with RAC that include a RAC file for future development. If the future development file is not in use the events will never occur and can be disregarded.