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This window sets the links between the 'logical' channel and a physical
connector on one or more Advantech ADAM modules. The first ADAM must be a 4109. You can select any of the A to D channels that are available,
in any order; you may also assign a single hardware input to several logical
channels. The ADAM input window looks more-or-less like this:
In this example , two voltage inputs (4 and 5, both set to ± 10 volts) and two temperature inputs (1 and 8, set to Type T and Type K thermocouples, respectively) are selected. Four other
inputs are available.
Special considerations:
Electrical connections should be mechanically solid and signals should be noise-free. Be sure to match the input type (volts or thermocouple) to the instrument type -- note that thermocouples can be directly connected to an ADAM-4019 without additional amplification or cold junction compensation. However, you should make sure to calibrate the 4019 temperature readings against another thermometer known to be accurate!
The number of hardware inputs can be increased to 16 by adding another ADAM A-D module; this can be either another 4019 or the simpler, cheaper 4017, which reads voltages only. If you add a 4017, the thermocouple type specification buttons aren't available and neither is the ± 2.5V option -- these are specific to the 4019. With a 4017 in addition to the 'primary' 4019, the input selection window looks like this:
Note that inputs for the second module are indicated with an asterisk (*).
Some things to keep in mind when connecting instruments to ADAM modules:
The connectors on ADAM modules are numbered from 0-7, not 1-8. Therefore, LabHelper input 2 corresponds to ADAM connector 1, etc.
If you use a second ADAM module, you need to subtract 9 from the LabHelper input number to get the correct ADAM connector. So for a second ADAM unit, LabHelper input 12 corresponds to connector 3 on the second ADAM.
You will have to program the second ADAM A-D unit to address #3. ADAM units are typically set to address #1 at the factory but users can use software commands to reset them to any address from 1-256. Another subroutine (described here) lets you do this conveniently within LabHelper.
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