Larson Davis 824 User Manual

9/29/09 RTA (optional) 11-15
•High
Logic Out
The Logic Out bit value determines which lines (heater, cal,
or logic) will be used on the control connector to indicate
each of the five states.
• 0 - 65535
These lines can be used to control
lights in a remote control device to
indicate the current state.
The setting for the Output Logic state selection is combined
into one 15-bit setting that has 3 bits (one for each output
line-Logic Out, Heater Out, and Cal Out) for each of the five
states (Stop, Ready, Armed, Triggered, Ended).
Use the table below to determine how these will be set up.
The default setting is 04768 which is shown by the bolded
squares in the table above.
The Logic output is on pin 2 of the control connector and
will be driven to +5 volts through a 1000 ohm resistor when
asserted or zero volts when not asserted. Pin 1 is the ground
signal.
The Cal output is on pin 7 of the control connector and will
be driven to +5 volts through a 10,000 ohm resistor when
asserted and to zero volts when not asserted.
For more information on the Control
Connector, see the section "System
824 Components" on page 1-10 The Heater control output is on pin 8 of the control
connector and will conduct current to ground when asserted
and not conduct when not asserted; uses an open drain ‘N’
channel transistor. Maximum voltage is +40 VDC and -0.5
Ended Triggered Armed Ready Stop
16384 8192
4096 2048 1024 512 256 128
6432168421
Heat Cal
Logic
Out
Heat Cal
Logic
Out
Heat Cal
Logic
Out
Heat Cal
Logic
Out
Heat
Cal
Logic
Out
The default setting indicates the
following:
Ended state is output on logic out.
Triggered state is output on logic
out.
Armed state is output on cal.
Ready state is output on heat.
Stop state is not output.

Larson Davis 824 Specifications

General

Brand	Larson Davis
Model	824
Category	Measuring Instruments
Language	English