Rockwell Automation 20D PowerFlex 700S AC Drives with Phase II Control Reference Manual - Manual (Page 185)

Rockwell Automation Publication PFLEX-RM003E-EN-E - January 2011 185
Detailed Drive Operation Chapter 1
• Parameter 922 [SL Real2DInt Out] contains the integer value sent over
SynchLink. One of the SynchLink Transmit Direct Selects (parameter
911…914) must be set to 1 “SL Multiply” to send the value over
SynchLink.
For example, to use the multiply block to scale the ramped speed reference and
send it over SynchLink, link parameter 921 [SL Real2DInt In] to parameter 43
[Ramped Spd Ref ]. Set parameter 923 [SL Mult Base] to 10,000. Then set
parameter 911 [SL Tx DirectSel0] = 1 “SL Multiply” to send the result in
parameter 922 [SL Real2DInt Out] over SynchLink.
Buffered Data
Buffered Data Receive Parameters (Follower)
Parameters 934 [SL Buf Data Rx00]…951 [SL Buf Data Rx17] contain values
that you receive from SynchLink as buffered data. Destination parameters can be
linked to this buffered data.
Parameter 933 [Rx Buf Data Type], bits 0…17, select whether each word of
buffered data that is transmitted is DInt (double integer) or real (floating point).
When the bit is turned off, it means the data received will be DInt. When the bit
is turned on, it means the data received will be floating point. The default is all
DInt words.
Buffered Data Transmit Parameters (Master)
Parameters 970 [SL Buf Data Tx00]…987 [SL Buf Data Tx17] can be linked to
source parameters that you want to send out SynchLink as buffered data.
Parameter 969 [Tx Buf Data Type], bits 0…17, select whether each word of
buffered data that is transmitted is DInt (double integer) or real (floating point).
When the bit is turned off, it means the data transmitted will be DInt. When the
bit is turned on, it means the data transmitted will be floating point. The default
is all DInt words.
SynchLink Diagnostics
Parameters 894 [SL CRC Err Accum]…903 [SL Error History] provide
diagnostic information for SynchLink.
Parameter 894 [SL CRC Err Accum] displays the total accumulated number of
CRC (Cycle Redundancy Check) errors. Clearing a fault resets this accumulator.
This data is visible on the SynchLink diagnostics tab of the Peer Communication
window.