User Guide
Table Of Contents
- 1. Scope
- 2. LMU-3040 Hardware Specifications
- 3. LMU-3040™ Connectors
- 4. Getting Started
- 4.2 SSH Credentials
- 4.3 Interactive “AT Console”
- 4.4 Command Line Interface (CLI)
- 4.5 Log File
- 4.6 Backup Logs
- 4.7 File Components
- 4.8 Software & Script Updates
- 5. PEG2
- 5.2 PEG2 File
- 5.3 PEG2 TAG Definitions
- 5.4 Multiple Modifiers
- 5.5 PEG1 -> PEG2 Conversion
- 5.6 PEG2 Native Editor
- 6. LMU32 vs EdgeCore Platform Differences
- 6.1 I/O Mapping & Wake-Up Sources
- 6.2 LMU Firmware Updates (Delta Files)
- 6.3 Vehicle Bus PID Polling Rate
- 6.4 PEG2 “Lines”
- 6.5 Event Index Field
- 6.6 Remote Debug PEG Action
- 6.7 Modem/GPS Reset
- 6.8 SIM Form Factor
- 6.9 Boot Reason
- 6.10 Peg Resources
- 6.11 GPS
- 6.12 Motion Logs (4hz vs 5hz GPS Sample Rate)
- 6.13 Time Sync Precedence
- 6.14 Version String in ID Reports
- 6.15 Firmware Revision Convention
- 6.16 Status LEDs
- 6.17 Dual APN Mode
- 6.18 Version Reports (App Message 111)
- 7. Installation Verification
- 8. Regulatory Information
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LMU-3x40 Training Guide
Revision & Date
1.6 – 03/24/2021
For example: if a fleet of 100 units is on 3 different firmware versions (v1.10.1, 1.10.4, and
1.11.4), to get all 100 units on to the same target firmware (1.12.0) requires 3 unique delta
images:
• Delta Image1: 1.10.1 -> 1.12.0
• Delta Image2: 1.10.4 -> 1.12.0
• Delta Image3: 1.11.4 -> 1.12.0
If there is no Delta Image available to get to the target firmware directly, a multi-step update
would be required. For example, if Delta Image 1 did not exist on the Device Management
platform, then the user would have to hop from 1.10.1 to 1.10.4 and then to 1.12.0.
6.3 Vehicle Bus PID Polling Rate
Unlike on the LMU-3030, the polling rate between each PID is a fixed. It is set to 150ms.
Additionally, the LMU-3040 and LMU-3240 no longer gives priority polling precedence to Speed
and RPM PIDs. For example, if there are three registered non-broadcast parameters, each
individual parameter is polled every 450ms
The LMU-3030 is different in that in-between each registered (non-broadcast) PID, the device
polls for SPEED and RPM, increasing the polling interval between each polled PID by a factor of
three.
On the LMU-3x40, Broadcast PIDs, if available and registered on the specific YMME installed, do
not add to the polling interval. Below is an illustration of this;
PID 1
PID 2
150
PID 3
Polling Every 150ms between each PID
Polling PIDS:
RPM
SPEED
ODO
Broadcast Every 50ms
Broadcast PIDS:
FUEL RATE
Throttle Position
PEG Accumulators