Example: Connecting The Hhu To The Sinumerik 840D - Siemens SINUMERIK FM-NC Installation And Startup Manual

12.98 08.97
03.96
3.4.4

Example: Connecting the HHU to the SINUMERIK 840D

1. Make the electrical connections on the distribution box and HHU.
2. Check that the HHU is capable of bus operation:
3. Make a permanent bus cable connection at the end of the bus
4. Deactivate the terminating resistors in the last bus connector
5. Set the DIP switches in the HHU:
6. Parameterize FB 1:
7. Check whether data from FB 1 are included in data view, otherwise update.
8. The Send / Rec data are preset in the HHU. No further parameters need to
9. For the purpose of integration in the PLC, the TOOL box contains a file
10. For HHU on MPI (SW4.x):
 Siemens AG 2000 All Rights Reserved
SINUMERIK 840D Installation and Start-Up Guide (IAD) – 04.00 Edition
When the HHU supply is connected, the following message must appear on
the display: "Waiting for PLC V 04.01.01 F",
in which F stands for node no. 15 (default setting).
––––> "BMPI" must be printed on rating plate on rear of unit.
(wire up inside connector instead of detachable connection!)
Note bus settings: OPI
MPI
(terminating resistors are integrated in the HHU).
S 1.3 ON ––––> OPI (1.5 Mbaud)
S 1.3 OFF –––> MPI (187.5 kbaud)
HHU 0 = No HHU
1 = HHU on MPI
2 = HHU on OPI
BHGIn 1st input byte
BHGOut 1st output byte
–––> Byte n+0, bit 7 must be set continually to "1"
by the PLC!
BHGStatSend Status data word Send
BHGStatRec Status data word Receive
BHGInLen B#16#6
BHGOutLen B#16#14
BHGTimeout S5T#700MS
BHGCycl S5T#400MS
BHGRecGDNo 2
BHGRecGBZNo 2
BHGRecObjNo 1
BHGSendGDNo 2
BHGSendGBZNo 1
BHGSendObjNo 1
be set. The data must be set as follows for checking purposes only:
BHGRecGDNo 2
BHGRecGBZNo 1
BHGRecObjNo 1
BHGSendGDNo 2
BHGSendGBZNo 2
BHGSendObjNo 1
"HHU.exe" as a programming example.
BHG = 2 and
BHGMPI = TRUE
3 Settings, MPI / OPI
3.4
(on NCU at X101)
(on NCU at X122)
Handheld unit
3-55
3