PEP Modular Computers Modular Computers RS485 - Page 261

SMART I/O User’s Manual
©1996 PEP Modular Computers GmbHOctober 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.