VIPA SSM-BG41, Manual

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Manual BG41/BG42/BG43 Software
Rev. 99/49 4-55
4.1.8.6 FB20 (SYNCHRON) up to firmware 4.1 for 3964(R) with RK512
This data handling block prepares the interface building block for the operation of the procedure
3964(R).
The block supports the procedure 3964(R) with the RK512 protocol. The data handling block must
be loaded in all start branches (OB20,21,22) for each interface to be used. If two channels are used
with the procedure 3964(R), this data handling block must be loaded twice.
The data handling block possesses formal operands.
Several working parameters are to be set through these formal operands. They can only be directly
addressed.
The following parameters are to be transmitted when loading FB20:
Bez. Format Erklärung
ADRE KH The address set with DIL switches
SSNR KF Interface number 1,2 (3)
BAUD KF Baud rate code 1...11 (10 = 9600baud)
FORM KM Transmission format:8bit,even parity,2 stop
PRIO KF 0=low, 1=high priority
BLOC KF Block size in bytes (always even-numbered!)
PAFE MB Byte for the output of an error number
Tab. 4-16:List of parameters for the loading of FB20
The following details are necessary for the abovementioned parameters:
ADRE
Input of the physical start address, under which the building block can be
accessed by the PLC. This start address can be set with the DIL switches S1 and
S2 (see chapter 5).
SSNR The interface number 1 or 2 are to be given. By the firmware 4017, number 3 can
also be given.
BAUD Different baud rates can be set by inputting the respective codes. With the plug
connector J11 on the building block, optional baud rates from 150 to 38400 baud
can be set. In order to achieve this, J11 which has a baud rate of 75 to 19200 baud
in its delivery state, must be replugged.