5.2.1
Log Start Sense
Normally, the PROLOGGER only begins to record when an instrument is
connected via the INPUT SIGNALS input. To sense this condition, Pin 10
(Log Start Sense 0) of the INPUT SIGNALS socket is grounded (connected
to Pin 28). The PROLOGGER program may then sense this condition by the
BJMPN 32,#8,Branch Label
instruction which branches when the INPUT
SIGNALS are not connected. See the description of the startup.INCLUDE
file in the Programmer’s Supplement (No. 6201) for further information.
Warning: The STARLOGGER will not begin recording unless the LOG
START Sense is connected to ground (Pin 28). LOG START is automatically
connected to ground when the Model 7100 Field Termination Strip is used.
5.2.2
Analog Inputs
Analog inputs can be used as low resolution (8 bit) or high resolution
channels (16 bit). Their usage depends how you refer to the input in the
STARLOG software. The software interprets analog inputs as low resolution
channels when you refer to them as a0 – A15 and high resolution channels
when you refer to them as A0 – A15.
All analog channels are programmable to carry a signal in one of four ranges:
-5.00 to 5.00V
155
µ
V resolution
-500 to 500mV
15.5
µ
V resolution
-50 to 50mV
1.55
µ
V resolution
-5 to 5mV
155nV resolution
Input impedance (when the logger is active) is greater than 1M
Ω
. Load
impedance (when the logger is inactive) for signals less than 500 mV is
greater than 1M
Ω
. For signals greater than 500mV it is 10k
Ω
. The
recommended source drive impedance is <10k
Ω
.
Analog channel calibration coefficients are stored in the configuration table
(see page 47 for details).
PROLOGGER Hardware
INSTALLATION & CONNECTION 27
Summary of Contents for Starlog Prologger 7001
Page 6: ......
Page 60: ......
Page 64: ......
Page 67: ...02 PROM Verify Fail 03 Mirror Fail 04 Bad checksum in RAM firmware PROLOGGER Hardware 3...
Page 68: ......