Stanley QB Expert, Instruction Manual

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Controller Connections
Instruction Manual
133
Inputs Description
SELECT TASK
(BIT)
When asserted or removed, on any input bus, the controller selects a Task. This is one bit, in a series of bits, to
create a binary number.
The number created by this and other SELECT TASK BITs determines the active task for the tool. More than one
input assigned as a TASK SELECT BIT creates a number greater than one. The maximum number of tasks required
determines the maximum number of these inputs.
In binary numbers, the digit furthest to the right is the ones digit. The next digit to the left is the twos digit, next
is the fours digit, then the eights digit, and so on. The integer equivalent to a binary number can be found by
summing all the weighted values of the selected digits. For example, the binary number 10101 is equivalent to
the integer 21. The math is 1 + 4 + 16 = 21: the high digits (one) are added together and the low digits (zero) are
ignored.
Bit Number 4 3 2 1 0
Weighted
Value
16 8 4 2 1
Binary
Number
1 0 1 0 1
24V DC Pins
(example)
R P N M L
To select task #21 on the controller at least five inputs are assigned as TASK SELECT (BIT). Each would then be
given a bit number to have a series of bits with different weighted values. For example, on the 24 VDC input pin L is
bit 0, pin M is bit 1, pin N is bit 2, pin P is bit 3, and pin R is bit 4. Therefore, to select task #21, assert pins L, N and
R.
Size: 1 bit, except on fieldbus where it can be any size to fit the need.
Configuration:
Contact Type: Normally Open (N.O.), Normally Closed (N.C.)
Bit: Type the number of this bit, in the binary number scheme, to select tasks.
Mode: All TASK SELECT BITs must be the same mode, no mixing of modes allowed.
Binary – Creates a decimal number equivalent to the weighted value of this binary bit(s).
1 – Creates a number equivalent to the weighted value of this binary bit(s) and adds the value of one
(1) to that number.
Spindle: Spindle: Type the spindle number in which the task is to be selected.
SET ZERO
POSITION
When asserted, on any Input type, the Zero Position for the tool is set. This Zero Position is used in the Position
Control strategy to stop the tool at the Zero Position after meeting the Snug Torque value.
Size: 1 bit
Configuration:
Contact Type: Normally Open (N.O.), Normally Closed (N.C.)
Spindle: Type the spindle number in which the Zero Positions is to be set.