JVL MIS17 Series User Manual page 352

17.2
Block description
Block Name Protected
<PStat> No
<Address> Yes
<Len1> Yes
<Data1> Yes
<MAddress> Yes
<Len2> Yes
<Data2> Yes
<End> No
The returned data has the following format:
Data offset Size
0 8 bit
1 16 bit
3 8 bit
4 16 bit
6 8 bit
7 8 bit
Program states:
Program
state Name
0 Passive
1 Running
2 Single Step
3 Paused
4 Stack Overflow
5 Program Overflow
6 Invalid Ins.
7 Stopped
8 Com. Error
9 Starting Program
10 Flash Error
11 Flash Checksum Error
352 JVL Industri Elektronik A/S - User Manual - Integrated Stepper Motors MIS17x, 23x, 34x, 43x
Serial communication
Example
61h,61h,61h
07h,F8h (Address 7)
01h,FEh (Len = 1)
01h,FEh (Start)
00h,FFh (Address 0)
08h,F7h (Len = 8)
09h,F6h, (Program state)
00h,FFh, 00h,FFh, (Pro-
gram pointer)
00h,FFh, (Stack pointer)
00h,FFh,
00h,FFh, (Program check-
sum)
80h,7Fh, (Inputs)
00h,FFh (Outputs)
AAh, AAh
Description
Program state. See table below for states.
Program pointer. The current location of the program pointer.
Stack pointer
Program checksum. This checksum is calculated when the program
is started.
Input status.
Output status
Description
The program execution is stopped. This state is only entered shortly at power-up.
The program execution is running
A single step is in progress. The program will run until the selected program
position is reached.
The program execution is paused, but can be resumed again.
The stack pointer has overflowed
The program pointer has overflowed.
An invalid instruction is encountered in the program.
The program execution is stopped.
Internal communication error has occurred. This cannot happen on MIS/SMC.
Program execution is being prepared. After this is completed the state will change
to running.
The program data is corrupted.
The program data checksum is incorrect.
Description
Program status command
The address of the MIS/SMC's to write to.
Length of the command data
Command data
This will always be 0, because this is the
address of the master
The length of the return data
Data returned from MIS/SMC
Command termination