Specifications

Document 12245 Rev. I Sheet 3 of 39
Table of Contents
1 Message Framing Format............................................................................................................................................5
1.1 STX/ETX..............................................................................................................................................................5
1.2 Count ...................................................................................................................................................................5
1.3 Address................................................................................................................................................................5
1.4 ACK Response Flag.............................................................................................................................................5
1.5 Message Data......................................................................................................................................................6
1.6 Checksum............................................................................................................................................................6
1.7 Message Handling ...............................................................................................................................................6
1.7.1 Rejected Messages ...............................................................................................................................6
1.7.2 Framing Synchronization .......................................................................................................................7
1.7.3 Address .................................................................................................................................................7
1.8 Timing Issues.......................................................................................................................................................7
1.8.1 Inter-character spacing..........................................................................................................................7
1.8.2 Inter-message spacing ..........................................................................................................................7
1.8.3 ACK Responses ....................................................................................................................................8
1.8.4 Replies...................................................................................................................................................8
2 Messages......................................................................................................................................................................8
2.1 Message Types....................................................................................................................................................9
2.1.1 Status Messages ...................................................................................................................................9
2.1.2 Control/Configuration Messages.................................................................................................
...........9
2.1.3 Command Messages.............................................................................................................................9
2.2 Data Values .........................................................................................................................................................9
2.2.1 Analog Value .......................................................................................................................................10
2.2.2 Enumerated Value...............................................................................................................................10
2.2.3 Bit Flag Value ......................................................................................................................................10
2.2.4 String Value .........................................................................................................................................11
2.2.5 Protocol Symbols.................................................................................................................................11
2.3 Programming Issues ..........................................................................................................................................11
2.3.1 Compatibility ........................................................................................................................................11
2.4 Instruction Codes ...............................................................................................................................................12
2.5 Message Table ..................................................................................................................................................12
3 Message Details.........................................................................................................................................................20
3.1 Reset Microprocessor (04).................................................................................................................................20
3.2 Get Unit Type (07) .............................................................................................................................................20
3.3 Get Faults (08)...................................................................................................................................................20
3.3.1 “Old” Fault Mask ..................................................................................................................................20
3.3.2 “New” Fault Mask.................................................................................................................................21
3.4 Clear Service Request (09)................................................................................................................................23
3.5 Fault Reset (0A).................................................................................................................................................23
3.6 Self Test (0B).....................................................................................................................................................23
3.7 Local Lockout (0E) .............................................................................................................................................23
3.8 Measured Parameter Data Queries (16)............................................................................................................23
3.8.1 Get Output Power (16 50).................................................................................................................... 24
3.8.2 Get Module Temperature (16 51) ........................................................................................................24
3.8.3 Get Module Current (16 52)................................................................................................................. 24