Configurable Inputs / Outputs - KPM PROCESS SENSORS METIS M308 User Manual

- Analog output 1 always applies the measured temperature, shown on the device display or in the control
window (see also 7.3.1).
- Analog output 2 (will be displayed after expansion with
you can select which output signal should be applied:
- "no output" disables the analog output.
- "Display temperature" is always the temperature selected for the display and the software pyrometer
window.
- Device temperature is the internal pyrometer temperature (scaled from 0 to 100°C).
- Controller output: The manipulated variable at devices with PID controller is set here as standard.
- Further adjustments can be made by extending the setting range
- Adaptation (see 6.3.11): The temperature range assigned to the analog outputs can be scaled to the
required application. Reduce the range for specific adaptation to the application, or enlarge the range
to replace the pyrometer to systems with larger temperature range.
With the reset button, the temperature range is set to the adjusted sub range.
- Upscale burnout function:
- Disabled upscale-burnout (standard): The analog output at sudden shadowing of the pyrometer's
view field is the lowest current (0 or 4 mA).
- With enabled upscale-burnout function, the analog output at sudden shadowing of the pyrometer's
view field is set to the maximum current of 20 mA. This can be desirable, for example, in a furnace
monitoring when the controller otherwise would recognize a cold oven and heat up fully and possibly
burn out the oven.

7.3.2.1 Configurable Inputs / Outputs

The 3 inputs / outputs can be set as input or output or inactive and assign with a
function (also see
▪ Digital Input mode (activated by voltage pulse or a voltage of +24 V)
- No function: A switching signal at the input has no effect.
- Extern clearing: Resets the maximum value of the peak picker.
- Targeting light on/off: (only available with
equipment laser targeting light): Switches
externally on or off the laser targeting light.
- Parameter selector (also see
Setups): For selection and activation of up
to 7 pyrometer configurations (incl. control
parameters at devices with PID controller).
- The inputs are binary coded, that is:
- with one digital input only one Setup can
be activated
- with 2 digital inputs there are 3 Setups
available
- using all 3 inputs, 7 Setups can be accessed and activated
|INFO|
Should for example the controller be activated and started externally via a digital input, this in-
put is obviously as parameter selector no longer available and with 2 inputs there are only 3 pyrometer
configurations left.
Additionally when equipped with a PID controller:
- Activate controller: The control process is activated as long as voltage at
the terminal is present.
- Start/stop controller: Each pulse starts or stops (alternating) the controller.
42
METIS M308 / M309 / M313 / M316 / M318 / H309 / H316 / H318 (12-pin)
4.1.4 Configurable Inputs / Outputs).
7.3.4
) is configurable, here at output temperature
Digital Input
Setups
(x = function active)
that can be
activated
1 2
–
1 x
–
2 x
– –
4
1,2,3 x x
–
1,4,5 x
–
2,4,6 x
1,2,3,4,5,6,7 x x
Function
No function
External clear
Targeting light on/off
Parameter selector
Digital Input
Active
(x = input active)
Setup
3 1 2
– –
1 x
– –
2 x
x 3 x x
– – –
4
–
x 5 x
–
x 6 x
x 7 x x
Function
...
Activate controller
Start/stop controller
3
–
–
–
x
x
x
x