ATEQ D620 - Page 53

FG_D6_PROFIBUS_EN_01 / 2020-06-17
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Reading of the program name
Master
Slave
— Select the program whose name you want to read
— Activate the “Read program name” command:
Write at the address 00(h), the value 2000(h)
Byte 0 = 00(h)
Byte 1 = 20(h) (Bit 5 = 1)
Acknowledgement
Command echo:
— Byte 0 = 00(h)
— Byte 1 = 20(h) (Bit 5 = 1)
Command error code:
— Byte 2 = FF(h)
— Byte 3 = FF(h)
(if command error code = FFFF(h), command is in
progress)
Running “Read program name” command
Command finished
Command echo:
— Byte 0 = 00(h)
— Byte 1 = 20(h) (Bit 5 = 1)
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 = 00(h)
— Byte 3 = 20(h) (Bit 5 = 1)
— Wait the end of the command:
command echo = 2000(h)
command error code ≠ FFFF(h) (end of command)
— Deactivate the “Read program name” command:
Write at the address 00(h) the value 0000(h)
Byte 0 = 00(h)
Byte 1 = 00(h) (Bit 5 = 0)
— Read the program name of 12 characters/bytes
maximum at the address 20(h):
The program name is dependant of the program number in edition, a program selection has to be
realized.
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).