12
0/1
Servo Center
operation or set
guide point
This bit performs two functions based on bit 9.
If bit 9 is cleared:
●
0: No effect
●
1: Start Servo Center operation
Note that this register is a write only register and will not change state if the
web guide reaches the center position. Note that this value on this register is
momentary. Before a servo center operation the bit needs to be cleared to
zero before setting it to one.
If bit 9 is set:
●
0: will clear the register and has no effect
●
1: will set the guide point to be at 50% of the sensing window.
Note that this value on this register is momentary. Before decreasing the
guidepoint the bit needs to be cleared before setting it to one. The extreme
limit is set such that at least ±3.175 mm is available on either side of the
adjusted guide point.
13
0/1
Enable arbitrary
gross guide point
adjustment
This bit allows arbitrary gross adjustment of the guide point offset through
the industrial ethernet interface.
0: if cleared to zero, gross guide point adjustment is disabled
1: if set to one, the remote ethernet controller can make arbitrary gross
adjustment to the guide point by writing a 16-bit signed integer to the guide
point register.
14-15
NA
Reserved for future
WARNING:
All the remote control operations may cause the web guide to move without operator
intervention. This process may cause process upsets. Caution must be exercised when performing these
functions and should be done by those who completely understand the consequence of this change.
WARNING:
Web Guiding System enabled by SCU5 controller is an automatic control device that may stop
and start at any time without notice, especially when controlled remotely. Hence standard safeguards must
be in place to prevent any kind of injury.
WARNING:
The remote control options provide significant access and control of the web guide and the
sensor. A combination of the settings may create conditions that might not be ideal for web guiding. Hence
only personnel familiar with the web guide operation should program the remote control interface. Contact
Roll-2-Roll Technologies’ technical support team for any question or assistance.
Guide point offset register
If the 13th bit of the web guide command register is set, then arbitrary guide point adjustment can be made
by writing a 16-bit signed integer value to the guide point offset register. The offset value is the distance from
the desired guide point location to the middle of the sensor window. A positive offset value will result in a
guide point location towards the right half of the sensor window while a negative offset will result in a guide
point location towards the left half of the sensor window. The guide point offset in mm = 0.0635*(the 16-bit
guide point offset register).
Content subject to change without notice
SCU5: Sensor and Web Guide Controller User Manual v 3.6| Page 59
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