Protocol-Dependent Parameters - Bosch CL400 Manual

DW1
DW2
5.3.2

Protocol-Dependent Parameters

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In this word it is specified on which COM-E and via which channel this job
should be processed.
The RSS number is entered in the high byte of this word. The RSS number is
determined with the R5INIT module.
The channel number indicates via which interface of the module the job is
supposed to be processed.
The computer interfaces of the CL400/CL500 make a parallel start of up to
16 jobs possible. By indicating the job number, the jobs can be distinguished.
Another job with the same job number can only be started when the old one
is finished. Such an attempt during a running job will be rejected by the
R5REQ with an error message.
Starting more than one centralized job with different job numbers in a PLC
cycle though is possible.
The COM-E can process up to 16 jobs at the same time. To do so, the COM-E
is provided with 16 job channels. The job numbers 0 to 15 are assigned di-
rectly to the job channels. Jobs with bigger job numbers seek the next free
job channel on the COM-E. This is the reason why the numbers 0 to 15
should not be mixed with higher job numbers because jobs could be rejected
in spite of free channels.
The job numbers can accept a value ranging from 16#0000 to 16#7FFF.
The 16. bit of the job number has the purpose to delete those jobs from the
job queue that have been passed to the computer interface where they are
pending for processing.
The job numbers 12 to 15 are reserved for high-priority jobs. Such an indica-
tion on the parameter has the effect that this parameter is given high priority
and that it is processed accordingly.
The following processing is executed sequentially according to priority.
.
Jobs cannot be sent in parallel to a communication partner!
The protocol-dependent parameters are described in the following chapters.
R5REQ 5- -7