4−4
Electric Drives
and Controls
Bosch Rexroth AG
RhoMotion
1070072367 / 04
PCLrho4.0
Programming the data channel to the PLC coupling
Programming via the data channel does not depend on the type of cou-
pling for the Ethernet/system bus. The OEM only programs the type of
data to be transmitted. The data from the rho4.0 can be read out or writ-
ten in on the PCLrho4.0, depending on the data block number entered in
BAPS, see example.
The following figure shows the basic operation of the PLC data channel.
WRITE/READ
BAPS
PLC
[
Data]
Sequentializing and
synchronization in
blocks
rho4 operating sy-
stem
PCL
OEM PLC
Processing
Synchronization
into PLC data block
Application
PLC data channel
reads or writes
data from a data
block
BAPS example program for access to PLC data via PLC data channel
; .
RECORD ;Record declaration in declaration part
INTEGER : LENGTH ;Data length of data buffer to be transferred
INTEGER : DM_NO ;Data module No. of PLC
REAL : REAL_VALUE ;Components of record
POINT : PNTVAR
INTEGER : INTEGERVAR
; .
; .
RECORD_END: READ_RANGE ;Declaration of record variables
RECORD ;Declaration of record
INTEGER : LENGTH ;Data length of data buffer to be transferred
INTEGER : DM_NO ;Data module No. of PLC
INTEGER : IVAR ;Components of record
Содержание Rexroth Rho 4.0
Страница 12: ...XII Electric Drives and Controls Bosch Rexroth AG RhoMotion 1070072367 04 Contents Notes ...
Страница 22: ...2 2 Electric Drives and Controls Bosch Rexroth AG RhoMotion 1070072367 04 System overview Notes ...
Страница 78: ...4 14 Electric Drives and Controls Bosch Rexroth AG RhoMotion 1070072367 04 PCLrho4 0 Notes ...
Страница 168: ...A 4 Electric Drives and Controls Bosch Rexroth AG RhoMotion 1070072367 04 Appendix Notes ...