Leroy-Somer digitax st User Manual page 37

TELEGRAM 4
The fourth telegram from the PROFIBUS-DP master acts as the indication to the slave
to send the mid-high data byte from the requested parameter. The data byte is not used
in this telegram, and should be set to 0.
Example telegram
Bit
Value
Data word = 0x9400
Stamp number = 4
When the fourth telegram has been received and processed in the slave node, the node
will mirror the stamp number in the non-cyclic IN word and load the mid-high byte of the
parameter value into the data byte.
Example response
Bit
Value
Data word = 0x9401
Stamp number = 4
Data mid-high byte = 0x01 = 1
TELEGRAM 5
The fifth telegram from the PROFIBUS-DP master acts as the indication to the slave to
send the mid-low data byte from the requested parameter. The data byte is not used in
this telegram and should be set to 0.
Example telegram
Bit
Value
Data word = 0x9500
Stamp number = 5
When the fifth telegram has been received and processed in the slave node, the node
will mirror the stamp number in the non-cyclic IN word and load the mid-low byte of the
parameter value into the data byte.
Example response
Bit
Value
Data word = 0x9525
Stamp number = 5
Data mid-low byte = 0x25 = 37
SM-PROFIBUS DP-V1 User Guide
Issue : a
b15-b12 b11-b8
1001 0100
b15-b12 b11-b8
1001 0100
b15-b12 b11-b8
1001 0101
b15-b12 b11-b8
1001 0101
www.leroy-somer.com
b7-b4 b3-b0
0000 0000
b7-b4 b3-b0
0000 0001
b7-b4 b3-b0
0000 0000
b7-b4 b3-b0
0010 0101
37