Operation Manual; Control Port; Control Port Assignment Dialog- Page 53

DBC Network Bridge 

Operation Manual

page 53

Control Port Window: Analog Inputs Section (AIN 1-8)

Find the

 Analog Inputs 

section (Figure 5.13) in the 

Control Port

 win-

dow. It has a status indicator and level meter for each input channel.

The Control Port analog inputs allow a 0 to +10 VDC signal to be input to 
allow remote control of continuously variable objects such as faders or fil-
ter frequencies. They can also be used to control switched objects (just like 
the Digital Inputs). When the 

Edit

 button associated with a particular input 

is pressed, the 

Control Port Assignment Dialog

 box appears and 

allows programming of the input just as was discussed for the Digital 
Inputs. These inputs can be used to sense the presence of an analog input 
signal level, such as ordinary 10 kilohm linear potentiometers for level 
control (Figure 5.14). Analog inputs can alternately be set to sense simple 
contact closure.

Control Port Window: Analog Outputs Section

Find the 

Analog Outputs

 section (Figure 5.15) in the 

Control Port

window.

In addition to the eight Digital Outputs, there are eight Analog Outputs that 
can be used to provide an output voltage (0 to +10V DC for control). These 
outputs can reflect a particular analog object such as a fader, or a switched 
object and, can be used to provide drive for such things as lighting con-
trols or for a standard digital type output.

The settings are remembered in a Preset, so they can be used to change the 
voltage of a particular output based upon Preset.

There are one indicator and six controls for each output.

1. Pin State Indicator:

 indicates the logical 'Pin-High' or 'Pin-Low' sta-

tus of the actual hardware output.

2. Manual:

 directly controls the binary output state of the corresponding 

pin when in Manual mode.

3. Polarity: 

changes the polarity of the analog output regardless of the 

pin control mode.

4. Reflect Manual:

 causes the output to directly reflect the state of its 

Manual control.

5. Reflect Binary:

 causes the digital output to reflect the state of the 

selected binary object within the DBC Network Bridge. Only a single object 
may be specified.

6. Reflect Slider:

 causes the analog output to reflect the setting of the 

slider control associated with the output.

7. Reflect dB: 

causes the analog output to reflect the status of the 

selected dB object. Only a single dB object may be specified.

5 Advanced Operation

A screw-terminal board with barrier-block to DB37M 
connections makes it easy to interface external circuitry 
to the Control Port. Measurement Computing™ Corp. 
offers a suitable screw-terminal board (part number 
CIO-MINI37), along with an enclosure (part number 
ENCMINI37) for this use.

Contact Measurement Computing Corp. at
www.measurementcomputing.com or (508) 946-5100.

Figure 5.14  Sample Control-Port Analog Input Circuit

1
2

3

4
5

6

7

Figure 5.13  Analog Inputs Section 

of the Control-Port Window

Figure 5.15  Analog Outputs Section of the Control-Port Window