csmstr - Omega Engineering

PORTREAD(PORT, PERIOD)
CRIMSON USER MANUAL - MODULAR CONTROLLER
PORTREAD(PORT, PERIOD)
ARGUMENT TYPE DESCRIPTION
port int The raw port to be read.
period int The time to wait in milliseconds.
DESCRIPTION
Attempts to read a character from the port indicated by port. The port must be configured to
use a raw driver, such as the raw serial port driver, or either of the raw TCP/IP drivers. If no
data is available within the indicated time period, a value of –1 will be returned. Setting
period to zero will result in any queued data being returned, but will prevent Crimson from
waiting for data to arrive if none is available.
FUNCTION TYPE
This function is active.
RETURN TYPE
int.
EXAMPLE
Data := PortRead(1, 100)
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