Bosch Rexroth OptiFeed-FS EcoDrive 03 FLP04VRS Functional Description page 337

ECODRIVE03-FL*-04VRS
DOK-ECODR3-FL*-04VRS**-FK01-EN-P
Write Status Word / Read Status Word
Bits
0..9
10..13
14
15
Fig. 11-12: Status Word for Variable
Write Control Word / Read Control Word
Bits
0..9
10..13
14
15
Fig. 11-13: Control Word for Variable
Handshake
When restarting the DKC, the handshake bits are the same.
When the master makes a read or write request, the respective
handshake bit must be toggled in the control word. After the DKC has
processed the request, it toggles the respective handshake bit in the
status word.
Handshake Bit Handshake Bit
Control Word Status Word
0 0
1 0
1 1
1 1
0 1
0 0
0 0
Fig. 11-14: Handshake Process
Command Communications
Function
Variable Number
Format / Error Number
Error Bit
Handshake Bit
toggles to the Status
Word
Function
Variable Number
Format
Reserved (always 0)/
Version Number: 0
Handshake Bit
toggles to the Status
Word
No function
Request from the Master
Request processed by the Slave (DKC)
No function
Request from the Master
Request processed by the Slave (DKC)
No function
11-7
Status