SMART I/O User’s Manual
©1996 PEP Modular Computers GmbH
October 01, 1996
Page 5 - 105
5
Chapter 5 Analog Modules
O_SET_LINE_LIMIT
:
This operate call allows the user to set the open loop
detect level on the current version of the SM-ADC1.
The syntax is as follows:
<analog var> := OPERATE(<iovar>, O_SET_LINE_LIMIT,
<var>);
where
<analog var>
represents the analog return variable and can
be zero if the operate call is supported and the
correct
<iovar>
is passed or non-zero if an
error occurred.
<iovar>
is the variable name for the channel where the
operate call is to take effect.
<var>
is the current value in mA and calculated using
the following formula:
var = 0xFFF0 mA
0x14
O_GET_LINE_STATE
:
This operate call allows the user to check the line
state on the current version of the SM-ADC1. The
syntax is as follows:
<analog var> := OPERATE(<iovar>, O_GET_LINE_STATE,
<var>);
where
<analog var>
represents the analog return variable and is
zero if an open loop is detected. Otherwise it
returns 1.
<iovar>
is the variable name for the channel where the
operate call is to take effect.
<var>
is not used.