Acyclic Mode 1; Acyclic Mode 2; Modes 1 & 2 - 8Bad Format - Lenze AC Tech MotionView OnBoard PositionServo PROFIBUS-DP Reference Manual

6.2.2 Acyclic Mode 1
PID310 = 1 (Mode 1 – 8BAD-F)
Setting this mode configures the PROFIBUS-DP module to expect 8 additional cyclic bytes at the FRONT of
all normal process cyclic data.
6.2.3 Acyclic Mode 2
PID310 = 2 (Mode 2 – 8BAD-E)
Setting this mode configures the PROFIBUS-DP module to expect 8 additional cyclic bytes at the END of all
normal process cyclic data.
NOTE
Enabling an 8BAD mode adds to the total amount of IN and OUT cyclic data and is reflected in the total
channel data size. Care should also be taken in selecting the correct module from the GSD file when
configuring the network master. Changes made to PID310 will only take effect after re-initialising the
drive.
6.3 Modes 1 & 2 – 8BAD Format
The 8BAD format of acyclic parameter data access is a simple method that utilises 8 bytes of cyclic data
which can be placed either before the regular cyclic data or after depending on the user's preference or
application requirements. 8BAD is comprised of 8 bytes of data.
P94PFB01A
Acyclic Parameter Access
Table 8: 8BAD Format
Byte
0
1
2
3
4
5
6
7
Description
Function Code
Access Control & Status
MSB
PID Index
LSB
MSB
Data
LSB
18