12-4 Digital I/O
XL™ Series
condition to “stage>10.0.” The digital I/O must be selected as a source in the logging report
options in order to tell the system when to evaluate the trigger condition. The logging report
options could be set to log Date, Time, Stage, and Dig I/O 1. As the unit turned on to scan the
sensors, it would log the date and time, measure and log the stage, and then evaluate the trigger
function. If the trigger condition was true, the output would turn on and a ‘1.0’ would be logged
in the data file. The output would stay on until the next scan, at which time it would be
reevaluated to see if it should stay on or be turned off. If on the next scan the water level was
below 10.0, the digital I/O would be turned off and a ‘0.0’ would be logged to the file.
“Trigger Pulse” Pulsed Output Mode
The selected pin is configured as an output that will pulse on and off based on a user defined
trigger condition. Continuing with the last example, if a warning horn is to sound at each scan the
water is above 9.0 feet, the user would set the trigger condition to “stage>9.0.” The digital I/O
must be used as a data source in the logging options in order to tell the system when to evaluate
the trigger condition. The logging options would be set to log Date, Time, Stage, Dig I/O 1, and
Dig I/O 2. As the unit turned to scan the sensors it would log the date and time, measure the
stage, test Digital I/O 1, and evaluate the trigger condition to see if the stage was greater than 9.0
feet. If the trigger condition was true, the output would pulse for the time set in the “Pulse
Length” option. The output would pulse after each scan when the water level was greater than 9.0
feet.
“On For Scan” On At Scan Time Mode
The selected output will turn on at the beginning of each scan and delay the scanning process for
a time specified by setting the “WarmUp Delay” option. After the warm up delay, the normal
scan process will continue. This would be used for applications that require an external device to
be turned on for every scan such as a motor or a pump. At the end of the scan the output will be
turned off. This Digital I/O does not have to be used as a data source in the logging options in
order to turn on and off when in this mode.
“Auto Continue.” Auto Continuous Output Mode
The auto continuous mode is very similar to the triggered continuous mode. The selected pin is
configured as an output that will turn on and off based on a user defined trigger condition. The
output will stay on until the condition goes away. However, when the auto continuous mode is
selected, the digital I/O does
not
need to be used a source in the logging options in order to tell
the system when to evaluate the trigger condition. When the auto continuous mode is selected,
the digital I/O will be evaluated every time the unit scans. The output will be automatically
triggered during the scan process if the condition is true, and the output will remain triggered
until the condition is no longer true.
“Encoder Out” Simulated Shaft Encoder Output Mode
When the XL™ is used to simulate a shaft encoder output, both I/O pins must be set to the
“Encoder Out” mode. When using this mode, the Dig I/O 1 pin will simulate the Phase A signal
and the Dig I/O 2 pin will simulate the Phase B signal of a quadrature shaft encoder. Any of the
normal input options such as stage, analog input, SDI-12 value, or even a function can be used as
Summary of Contents for H-350XL
Page 1: ...XL Series Models H 350XL H 500XL H 510XL H 522 H 522 Plus Owner s Manual ...
Page 30: ...2 16 Hardware Options and Installation XL Series ...
Page 42: ...3 12 Using The Built In Keypad Display XL Series ...
Page 46: ...4 4 PC Menu Interface Operation XL Series ...
Page 58: ...5 12 Miscellaneous System Setup XL Series ...
Page 66: ...6 8 Serial Port Options XL Series ...
Page 74: ...7 8 System Configuration Files XL Series ...
Page 84: ...8 10 System Status Menus Options XL Series ...
Page 88: ...9 4 Scanning Options XL Series ...
Page 156: ...15 12 Logging Options XL Series ...
Page 198: ...16 42 Operation with the GOES Radio XL Series ...
Page 216: ...19 6 Alarm Call Out XL Series ...
Page 234: ...21 8 Operation with the H 355 Smart Gas System XL Series ...
Page 246: ...22 12 Functions XL Series ...