Manual

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4: SOFTWARE SPECIFICATIONS

SX5L COMMUNICATION TERMINAL USER’S MANUAL 4-5

Virtual I/O Functional Block

The Virtual I/O functional block is not designed for a particular hardware type, but can be used to conﬁgure required cir-

cuits. For example, the Virtual I/O functional block can be used to link alarm signals to digital output functional blocks,

and conﬁgure a simple interlocking circuit by combining multiple Virtual I/O functional blocks.

Initial Status Transmission

When receiving the reset command at powerup, input network variables nviSWA and nviSWB are initialized to (value,

state) = (0, 0). Based on these values, output network variables nvoSWA and nvoSWB are sent to the network.

Event-driven Transmission

Each time nviSWA or nviSWB is received, nvoSWA and nvoSWB are sent.

I/O Name Type Description

Input Network Variable

nviSWA[0] to [5] SNVT_switch Value to be sent from nvoSWA[0] to [5]

nviSWB[0] to [5] SNVT_switch

Forces to change the nvoSWA and nvoSWB output

values.

When receiving (state) = 1, nvoSWA sends 0 and

nvoSWB sends 1.

Output Network Variable

nvoSWA[0] to [5] SNVT_switch

Sends the received nviSWA[0] to [5] values without

change.

nvoSWB[0] to [5] SNVT_switch

Inverts the received nviSWA[0] to [5] values and

sends the inverted values (logical NOT).

Conﬁguration Property nciAndOr[0] to [5] SCPTdeﬂtBehave

Designates Boolean operation for functional blocks.

When (state) = 0, as shown above.

When (state) = 1 is set, the following output is sent:

nvoSWA sends logical AND of nviSWA and nviSWB.

nvoSWB sends logical OR of nviSWA and nviSWB.

nviSWA[0] nvoSWA[0]

VIO[0]

nviSWB[0] nvoSWB[0]

nviSWA[1] nvoSWA[1]

VIO[1]

nviSWB[1] nvoSWB[1]

nviSWA[2] nvoSWA[2]

VIO[2]

nviSWB[2] nvoSWB[2]

SX5L-SBT16K1 / SX5L-SBT16S1 SX5L-SBM16K1 / SX5L-SBM16S1

nviSWA[3] nvoSWA[3]

VIO[3]

nviSWB[3] nvoSWB[3]

nviSWA[4] nvoSWA[4]

VIO[4]

nviSWB[4] nvoSWB[4]

nviSWA[5] nvoSWA[5]

VIO[5]

nviSWB[5] nvoSWB[5]