CORE ASSEM. 9S5149 - Caterpillar

The following examples reference EMCP II applications. However, the format will be similar for other applications.The user must login to the CCM before any M5X programming can be started. Refer to Operation and Maintenance Manual, SEBU6874, "Communication Protocol for Customized Systems" for more specific information.Create a Broadcast List
In the following example a broadcast list will be created. The list will also be activated. The list will contain PID $00 $40 (engine rpm) and PID $00 $54 (engine oil pressure). The information will be requested in 2 second intervals from the EMCP II GSC. The list will then be deactivated.
Create a Broadcast List - IID 13: 500013150258040020004000540000000000 0000000000000086IID 13 - Used to create a broadcast list. A total of eight lists is allowed by the CCM. This example assumes list number 2.
Table 1
Byte(s)    Byte Contents    Detailed Description    
1     $50     Indicates M5X protocol    
2     $00     User's PC is the sending module    
3     $13     IID 13    
4     $15     Number of bytes    
5     $02     List number    
6     $58     GSC number 1    
7     $04     Response will be sent every 2 seconds (increments of 0.5 seconds)    
8     $00     These bits are unused (always = 0)    
9     $20     Programming Options: no separator, message terminated by carriage return, in ASCII form.    
10, 11     $00 $40     1st PID - Generator Set Engine RPM    
12, 13     $00 $54     2nd PID - Engine Oil Pressure (kPa)    
14, 15     $00 $00     Filter for unused PID    
16, 17     $00 $00     Filter for unused PID    
18, 19     $00 $00     Filter for unused PID    
20, 21     $00 $00     Filter for unused PID    
22, 23     $00 $00     Filter for unused PID    
24, 25     $00 $00     Filter for unused PID    
26     $86     Checksum    
IID 15 is the response from the CCM that confirms that the list has been successfully created: 500115010099IID 15 - The CCM's reply to IID 11, IID 12, or IID 13.
Table 2
Byte(s)    Byte Contents    Detailed Description    
1     $50     Indicates M5X protocol    
2     $01     CCM is the sending module    
3     $15     IID 15    
4     $01     Number of bytes    
5     $00     IID data is OK    
6     $99     Checksum    
Activate the Broadcast List - IID 11: 50001101029CIID 11 - Used to activate a broadcast list.
Table 3
Byte(s)    Byte Contents    Detailed Description    
1     $50     Indicates M5X protocol    
2     $00     User's PC is the sending module    
3     $11     IID 11    
4     $01     Number of bytes    
5     $02     List number    
6     $9C     Checksum    
IID 15 is the response from the