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Felix Weiß
2023-07-06 11:46:51 +02:00
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MewtocolNet/ReverseEngineering.md
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# Open Questions
- What is the HW information byte for?
- What are the last bytes of the EXRT message for?
# Actual Readouts
| PLC TYPE | CPU Code | Machine Code | HW Information|
|--------------|--------------|--------------|---------------|
| FPX C14 R | 20 | 70 | 02 |
| FPX C30 T | 20 | 77 | 02 |
| FPX-H C14 R | 20 | A0 | 01 |
| FPX-H C30 T | 20 | A5 | 01 |
## FPX 16k C14R Actual Response Examples
### %EE$RT
|Reponse Byte|Description|
|------------|-----------|
| 20 | Model code |
| 25 | Version |
| 16 | Prog capacity |
| 80 | Op mode |
| 00 | Link unit |
| E1 | Error flag |
| 2D00 | Self diag error |
### %EE$EX00RT Normal Operation
|Reponse Byte|Description|
|------------|-----------|
| 00 | Extended mode
| 32 | Data item count
| 70 | Machine type
| 00 | Version (Fixed to 00)
| 16 | Prog capacity in K
| 80 | Operation mode / status
| 00 | Link unit
| E1 | Error flag
| 2D00 | Self diag error
| 50 | Version
| 02 | Hardware information
| 0 | Number of programs
| 4100 | Program size BCD
| 1600 | Header size (no. of words) bcd
| 1604 | System register size
| 96230000001480004 | ?
### %EE$EX00RT with error
|Reponse Byte|Description|
|------------|-----------|
| 00 | Extended mode
| 32 | Data item count
| 70 | Machine type
| 00 | Version (Fixed to 00)
| 16 | Prog capacity in K
| 81 | Operation mode / status
| 00 | Link unit
| 60 | Error flag
| 0000 | Self diag error
| 50 | Version
| 02 | Hardware information
| 0 | Number of programs
| 4100 | Program size BCD
| 1600 | Header size (no. of words) bcd
| 1604 | System register size
| 96230000001480004 | ?
What are the last bytes?
FP-X 16k C14R
96 23 00 00 00 14 80 00 4
FP-X 32k C30T/P
96 23 00 00 00 14 80 00 4
FP-XH 32k C30T/P
96 23 00 00 00 40 00 00 4
FP-XH 16k C14R
96 23 00 00 00 40 00 00 4
## FP-XH 16k C14R Actual Response Examples
### %EE$RT
|Reponse Byte|Description|
|------------|-----------|
| 20 | Model code |
| 16 | Version |
| 16 | Prog capacity |
| 81 | Op mode |
| 00 | Link unit |
| 60 | Error flag |
| 0000 | Self diag error |