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25-1. GPI Control
The switcher can control external devices or can be controlled by external devices via the GPI
interface. Tally output is also possible. GPI input and output functions and tallies are freely
assignable to the GPI IN/ALARM and GPI/TALLY OUT connectors on the HVS-490.
Pin assignments are also available for the OU GPI I / O connector on the control panel.
25-1-1. GPI IN
The GPI IN connector on the switcher provides GPI inputs. (See Sec. 3-4-2. “GPI IN/ALARM
Connector.") Assign GPI IN functions as shown below.
Two or more functions can be assigned to a GPI input pin. For example, the positive edge
pulse of PIN 01 input sets KEY1 to ON and its negative edge pulse sets KEY1 to OFF. Up to
60 pairs of pin and function can be set.
(1) Open the [SETUP > GPI TALLY > GPI IN] menu.
(2) Set the number under RULE. (This number becomes the pin and function registration
number.)
(3) Select a pin number.
(4) Select POSITIVE or NEGATIVE logic under TRIGGER.
(5) Select the function type under FUNCTION.
(6) Select a function under TARGET. (See “GPI IN Functions in Appendix 2 for assignable
options.)
(7) Turn ENABLE to ON to activate this GPI input.
(8) Repeat the above steps to assign and enable functions to other pins.
SETUP > GPI TALLY > GPI IN
SETUP > GPI TALLY > GPI IN
25-1-2. GPI OUT
The GPI/TALLY OUT connector on the HVS-490 provides GPI outputs. (See Sec. 3-4-3.
“GPI/TALLY OUT Connector.")
(1) Open the [SETUP > GPI TALLY > GPI OUT] menu.
(2) Select the pin number or flag number under PIN/FLAG.
(3) Select FUNC for TYPE.
(4) Select the function type under FUNC/COL and a function under TARGET/XPT. (See “GPI
OUT Functions” in Appendix 2 for assignable options.)
SETUP > GPI TALLY > GPI OUT
(5) Go to PAGE 2 and select a signal type under ACTIVE between LOW and HIGH.
(6) Repeat the above steps to assign functions to other pins.
SETUP > GPI TALLY > GPI OUT
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