Interpreters Document



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dps Interpreters

Pseudo Code: 
XX 52 AC0 AC1 AC2 AC3 G0-G1 G2-G3 G4-G5 G6-G7 G8-G9 
Build Read Checksum message as indicated in the table below: 
Request Byte 
Value 
Byte Description 

6C 
Format and Type 

AC0 
Target Device ID 

## 
Global Source ID 

3C 
Read Data Block 

- - -
Block number (01, 02, 03, 08, (82 or 8E)) 

CS 
1 byte message checksum (handled by the system) 
Set Block Number to 01 
Send a mode 3C Read message for VIN bytes 1-5 and receive response 
If a valid response was not received, Goto “Response Processing” (end processing)
Calculate checksum on received data bytes (6 data bytes) 
Set Block Number to 02 
Send a mode 3C message for VIN bytes 6-11 and receive response 
If a valid response was not received, Goto “Response Processing” (end processing)
Increase checksum by received data bytes (6 data bytes) 
Set Block Number to 03 
Send a mode 3C message for VIN bytes 12-17 and receive response 
If a valid response was not received, Goto “Response Processing” (end processing)
Increase checksum by received data bytes (6 data bytes) 
Set Block Number to 08 
Send a mode 3C message for Part Number bytes 1-4 (USN) and receive response 
If a valid response was not received, Goto “Response Processing” (end processing)
Increase checksum by received data bytes (4 data bytes) 
If AC1 = 8E 
Set Block Number to 8E 
Else 
Set Block Number to 82 
Endif 
Send a mode 3C message for DVT Option bytes 1-4 and receive response 
If a valid response was not received, Goto “Response Processing” (end processing)
Increase checksum by received data bytes 
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Add one (1) to the checksum value
(continued)
Build Write Checksum message as indicated in the table below: 

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