Pepper Computer Modular Computers RS485 - Manual (Page 282)

SMART I/O User’s Manual
October 01, 1996 ©1996 PEP Modular Computers GmbH Page 5 - 126
Chapter 5 Analog Modules
O_DISABLE_CONV
: This operate call tells ISaGRAF to disable the
conversion of a particular channel of a connected
SM-DAC1 module. The syntax is as follows:
:= OPERATE(, O_DISABLE_CONV, 0);
where represents the analog return variable and can
be zero if the operate call is supported and the
correct is passed or non-zero if an
error occurred.
is the variable name for the channel where the
operate call is to take effect.
O_GET_LINE_STATE
:
This operate call allows the user to check the line
state on the current version of the SM-DAC1. The
syntax is as follows:
:= OPERATE(, O_GET_LINE_STATE,
);
where represents the analog return variable and is
zero if an open loop is detected. Otherwise it
returns 1.
is the variable name for the channel where the
operate call is to take effect.
is not used.