Siemens SINUMERIK 840Di Manual page 144

5 MPI Communication
5.4 Machine control panel (MCP)
Setting the
communication
parameters (FB1)
5-144
The user (machine manufacturer) must call the relevant part of the basic
program
in the OBs 1, 40 and 100, as shown in Fig. 5-6.
OB 100
Î Î Î
Restart
Î Î Î
OB 1
Î Î Î
Cyclic
processing
Î Î Î Î Î Î Î
OB 40
Î Î Î Î Î
Process alarm
Î Î Î Î Î
Fig. 5-6 Structure of PLC program
The MCP communication parameters are designated in function block FB1 with
MCPx... (with x = 1 or 2).
In addition to a first MCP, a second MCP or an HT 6 (for HT 6, see Section 5.7,
page 5-161) can be active as another operator component at the same time.
FB 1
Start:
e.g.
MCP parameters
User program
FC 2
NCK
Mode grp.
GP-OB 1
Channel
Axis
Spindle
FC 14
MCP,
HHU
FC 6
TOOLMAN
FC 19/25/26
MCP:
MCP_IFM
User
MCP_IFT
program
HPU_MCP
FC 7/8/22
TM:
TM_Trans
TM_Dir
FC 17
Star/delta
FC 10
Error and
operational
messages
FC 3
G group
GP_PRAL
distributor
User
program
 Siemens AG, 2003. All rights reserved
SINUMERIK 840Di Manual (HBI) – 06.03 Edition
06.03
FC (9/15/16/18)
ASUB,
con. axes/
spindles
FB 2/3/4
Read/ write
var., PI
services
FC 13
HHU:
Display control