Crestron simpl plus language ref 사용자 설명서

Software Crestron 

®

z SIMPL+

DIGITAL_OUTPUT

DIGITAL_OUTPUT <var1>[,<var2>...];

DIGITAL_OUTPUT <var[size]>;

DIGITAL_OUTPUT <var[size[,<min>]]>;

Routes a value from the SIMPL+ program to a SIMPL program. If a value different 
from 0 is placed on a DIGITAL_OUTPUT, the digital signal in the SIMPL program 
is set high when the control system processes the logic.

Refer to the discussion on arrays on 

In X-Generation Control Systems, if a new value is assigned to the 
DIGITAL_OUTPUT from the SIMPL+ program, the value read back from it within 
the SIMPL+ program will have the original state until the logic is serviced. For 
example, if a DIGITAL_OUTPUT has a value of 0, and the value 1 is written to it, 
the value read back will be 0 until the system processes the rest of the logic attached 
to that SIMPL+ symbol. This is unlike an ANALOG_OUTPUT. If every change of 
a DIGITAL_OUTPUT is required to be seen by the logic, a PROCESSLOGIC 
statement is required after the assignment to the DIGITAL_OUTPUT.

In the 2-Series Control Systems, the logic process sees ALL values that are assigned 
to the DIGITAL_OUTPUT. No PROCESSLOGIC is required. As an example, if the 
following code is used in the 2-Series Control Systems:

DIGITAL_OUTPUT State1; 

State1=1; 

State1=0;

The logic will end up seeing a short pulse.

For an array of DIGITAL_OUTPUTs, the maximum value of SIZE is 65535. Valid 
indices are 1 through the specified size.

NOTE: DIGITAL_OUTPUTs may be jammed with other digital values from a 
SIMPL program (i.e., from a BUFFER or other jammable digital logic, even other 
SIMPL+ symbols). When such an output is jammed, the new value is read back into 
the SIMPL+ symbol and the value of the output is altered. 

NOTE: <min> is the number of outputs shown at a minimum in SIMPL Windows. 
The Default is 1. The user can expand the minimum up to the full size. Only the last 
array of a type can have <min>. Refer to Arrays on 

, and Declarations on 

.

NOTE: You should use isSignalDefined to test whether the output is connected to an 
actual signal in the SIMPL Windows program before assigning a value to it. If you 
assign a value and there is no signal, a message is placed in the system error log.