OUTQUAD, OUTOCT, OUTHEXD – Multi-output blocks

Block SymbolsLicensing group: STANDARD

Function Description
The REXYGEN system allows not only writing of a single output signal but also simultaneous writing of multiple signals through just one block (for example all signals of one module or plug-in board). The blocks OUTQUAD, OUTOCT and OUTHEXD are designed for these purposes. They differ only in the maximum number of signals (4, 8 and 16, respectively). These blocks are not included in the RexLib function block library for Matlab-Simulink.

The name of the block instance includes the symbol of the driver <DRV> and the name of the signal <signal> of the given driver:

• <DRV>__<signal>

It is created the same way as the GotoTag parameter of the INSTD and OUTSTD blocks. E.g. the digital outputs of a Modbus I/O device might be referenced by MBM__DO. Detailed information about signal naming can be found in the user manual of the corresponding I/O driver.

The overhead necessary for setting the outputs through input/output drivers is minimized when using these blocks, which is important mainly for very fast control algorithms with sampling period of 1 ms and lower. Moreover, all the inputs are written simultaneously or as successively as possible. Detailed information about using these blocks for particular driver can be found in the user manual for the given driver.

Since version 2.50.5 it is possible to use placeholders in names of I/O driver signals. This is useful inside subsystems where this placeholder is replaced by the value of subsystem parameter. E.g. the name MBM__module<id> will refer to signals of module 1, 2, 3 etc. depending on the parameter id of the subsystem the block is contained in. See the SubSystem function block for information on defining subsystem parameters.

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