Control Mode Selection - Banner A-GAGE MINI-ARRAY MACNXDN-1 Instruction Manual

Control Module Configuration

4.4 Control Mode Selection

The control mode determines the method used to control scanning of the light screen
array. Choose from three scan control modes:
• Continuous Scan mode (the Factory default setting),
• Host Command mode, and
• Gate mode
In Continuous Scan Mode, the control module begins a new scan as soon as it
updates the outputs from the previous scan. This is the fastest scan control method; it
is used when continuous updating of the outputs is acceptable.
Host Mode allows the user, with a DeviceNet connection, to direct the MINI-ARRAY
System to scan on command.
Gate Mode activates an optically isolated external Gate input between terminals 11 (+)
and 12 (-) of the control module. The Gate input has impedance of 7.5 kΩ and accepts
a 10 to 30V dc signal. A dc device such as a photoelectric sensor or optical encoder
typically supplies the Gate input. Gate input signals must be greater than 100
microseconds in duration; the time between successive Gate inputs must be greater
than the minimum scan time for the light screen array (see section 4.5 for scan time
information).
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