ATEQ D620 - Cycle

FG_D6_PROFIBUS_EN_01 / 2020-06-17
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CYCLE
Standard command cycle
Start cycle command on the ATEQ device
Master
Slave
— Select the program you want to start
— Activate the “Start” command:
Write at the address 00(h), the value 0002(h)
Byte 0 = 02(h) (Bit 1 = 1)
Byte 1 = 00(h)
Acknowledgement
Command echo:
— Byte 0 = 02(h) (Bit 1 = 1)
— Byte 1 = 00(h)
Command error code:
— Byte 2 = FF(h)
— Byte 3 = FF(h)
(if command error code = FFFF(h), command is in
progress)
Running “Start” command
Command finished
Command echo:
— Byte 0 = 02(h) (Bit 1 = 1)
— Byte 1 = 00(h)
Command error code if the command is correctly
carried out:
— Byte 2 = 00(h)
— Byte 3 = 00(h)
OR if an error occurred during the command:
— Byte 2 = 02(h) (Bit 1 = 1)
— Byte 3 = 00(h)
— Wait the end of the command:
command echo = 0002(h)
command error code ≠ FFFF(h) (end of command)
— Deactivate the “Start” command:
Write at the address 00(h) the value 0000(h)
Byte 0 = 00(h) (Bit 1 = 0)
Byte 1 = 00(h)
The master instrument must always set to zero the command bit. If it is not done, the slave instrument
will not detect the following command on this bit. It has detection on the rising edge (when the bit
state goes from 0 to 1).