Danfoss InterBus-S Handbuch Seite 12

PCV-part of PPO1 PCV PCV PCV PCV -part of PPO1 -part of PPO1 -part of PPO1 -part of PPO1
Index: 5FA5 hex
Symbol: PCV
Data type: 14 OCTET_STRING
with 8 Octets each
Access: Read/Write
This object services the purpose of
reading and writing the first 8 Octets
(PCV-part) of PPO Type1. The 14
elements of object 5FA5 hex can be read
and written individually or jointly.
In order to read or write the PCV-part of a
connected VLT ® , the number of the VLT
is transmitted as a subindex in addition to
the index in connection with
Write.Request. See example on page 6.
12
Gateway InterBus-S
W W W W W rite access: rite access: rite access: rite access: rite access:
Attempts at writing only receive a positive
confirmation handshake if the new value
entered can in fact be entered for the
frequency converter in question, i.e. if :
1. PPO Type1 is used,
2. the PROFIBUS-DP-Master is in
Operate mode
3. all frequency converters expected at
PROFIBUS-DP are in data exchange
mode.
4. New data has been sent to and re-
ceived by the PROFIBUS-DP at least
once.
®
Read access: Read access:
Read access: Read access: Read access:
In order to return the response values of
the VLTs, the structure must be read.
The data is interpreted as a parameter and
combined with the corresponding value of
the process data channel to form a tele-
gram. A validity test is not carried
out.
Access to the two PPO objects is only
possible in accordance with the switch
setting on the front panel, i.e. if the switch
has been set to PPO Type3, the PPO
Type1 object cannot be read or written.
MG.10.G1.51 – VLT is a registered Danfoss trademark