Communications configuring
3-274 System- and communication configuring D7-SYS - SIMADYN D
Edition 12.2003
3.24.1.2 I/O of the CRV, CTV blocks
The configured coupling module name via which communications is to be
realized, is specified at input CTS of the block. For CS7 or T400 modules,
it is also necessary to specify the connector (X01, X02 or X03).
The address parameter for communications is specified at input AR, AT.
It consists of a channel name and the optional address stages. The
significance of the address parameters is dependent on the coupling
used. (e.g. PROFIBUS or DUST).
The data transfer mode is configured at the MOD input (e.g. "R" for
refresh or "H" for handshake)
Input EN defines whether data is to be transferred in the current
operating cycle.
The virtual connection name, receive or send is configured at input CRR
or CRT.
3.24.2 Channel marshalling blocks CCC4 and CDC4
Channel marshalling blocks are used to split-up or combine channels.
3.24.2.1 Group block CCC4
The CCC4 function block (Communication Collect Channel 4) combines
up to 4 channels to form one. The channels may have different address
data, be located at different interfaces and have different data transfer
modi as well as channel lengths.
In order that the function block can operate, at least 2 channels must be
combined (CT1- and CT2 input data are mandatory).
If only 2 channels are to be combined, then a "0" (zero) should be
configured at initialization inputs CT3 and CT4. In this case, connections
AR3, AR4, MO3, MO4, LT3 and LT4 are no longer evaluated.
The transmit channel is specified at inputs CTS, AT and MOD. The length
of the net data to be transmitted is obtained from the sum of the receive
data. Receive channels 1-4 are combined, one after the other to form a
large net data block.
Inputs CTS
Input AR, AT
Input MOD
Input EN
Inputs CRR, CRT
Application
General
Prerequisites
Data entries at
connections CT3,
CT4
Data entries at
input CTS, AT,
MOD
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