30
c
HAPTER
3:
Operation
F71/F41 Teslameter
3.5.5.1 Digital I/O Connectors
The inputs and outputs are house on separate connectors. Each teslameter ships with
two 6-pin Phoenix Contacts FK-MC 0,5/ 6-ST-2,5 connectors for use with the digital
input and output connections. These connectors use a push-in spring mechanism to
capture the wires, so it is recommended that you have access to a flat tip precision
screwdriver or similar with a head width of less than 1.5 mm.
These connectors accommodate wires with the following characteristics:
Conductor type: solid/stranded
Conductor size: 20 – 26 AWG
Insulator strip length: 8 mm
3.5.5.2 Inputs
Each input can be configured with different functions. The input functions are config-
ured with the
DIGital:INPut#:FUNCtion
command (see section 4.5.2), or
through the Digital I/O menu option in the Settings menu. The available functions are:
D
None:
the state of the input does not affect the state of the instrument. The state
of the inputs is synchronized with the field data, and can be queried through a
remote connection.
Tip:
Query the field data and input state at the same time to align field readings
with an external action that is tied into one of the teslameter inputs. This is use-
ful for combining collected field data with additional data sources. The easiest
way to do this is with the buffered data streaming feature described in
section 3.5.3.
D
Max/Min Reset:
On a rising edge, the max and min hold values will be reset to the
present field reading.
The state of the input pins can be read using the
DIGital:IDATa?
query. The
returned integer is a bitwise representation of the logic level presented at the respec-
tive inputs (i.e., bit 0 = state of input 1, bit 1 = state of input 2).
FIGURE 3-22
Digital I/O connectors
