Siemens SINUMERIK 840D sl Function Manual page 108

Several Operator Panels on Several NCUs, Distributed Systems (B3)
2.2 Several operator panel fronts and NCUs with control unit management option
Element
plc_address =
*) For MPI bus: Since the associated NCU always occupies the next-higher address than the
PLC, the PLC address must not be 31. Address 31 can be assigned to a PCU, for example.
Note
If the bus node addresses on the MPI bus are configured in conformance with SIMATIC, the
configuring engineer can read out the assigned addresses using a SIMATIC programming
device and use them to create the NETNAMES.INI file.
VI. Channel data
The control unit switchover option can work only if the control unit knows how channels are
assigned to NCUs so that it can set up links between the control unit and NCUs. (Channel
menu).
Concept
The following steps are necessary:
1. Definition of technological channel groups
2. Assignment of channels to groups
3. Assignment of NCUs to channels
4. Definition of power-up link
NCUs are addressed indirectly on the control unit on the basis of channel group and
channel. See Section "Operator interface".
References:
/IAM/ Commissioning Manual HMI
/FB1/ Function Manual, Basic Functions; "PLC Basic Program"
Element
[chan
DEFAULT_logChanGrp =
DEFAULT_logChan =
ShowChanMenu =
FALSE
logChanSetList =
108
p
identifier
]
group
channel
TRUE |
group list
Explanation
Address of PLC component on
the bus:
p
= 1, 2, ..., 30 *)
(Only necessary for MPI bus; in
the case of the OPI bus: j = p)
Explanation
Header
(channel menu of MMC_1)
Channel group of channel
during power up (4.)
Selected channel during power
up (4.)
TRUE Display channel menu
List of channel groups (1.)
Function Manual, 01/2008, 6FC5397-1BP10-3BA0
Example
plc_address = 14
Example
[chan MMC_1]
DEFAULT_logChanGrp = Mill1
DEFAULT_logChan =
channel11
ShowChanMenu = TRUE
logChanSet = mill1, mill2
Extended Functions