XW2B-80J7-1A Omron, XW2B-80J7-1A Datasheet - Page 177

• Manufacturer Part Number: XW2B-80J7-1A
• Description: RELAY UNIT
• Manufacturer: Omron

Specifications of XW2B-80J7-1A

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: XW2B80J71A

Pulse Inputs
Counter Operation
(Numeric Ranges)
Reset Methods
154
Encoder
Input B
(DOWN input)
Encoder
Input A
(UP input)
Circular maximum value
Increment/Decrement Pulse Inputs
Decrement
1
Increment
2
Circular Counter
Note
3
The following two counter operations are available for high-speed counters 1
and 2, with the specified counting ranges.
Circular Counter
With a Circular Counter, the circular maximum count can be set in the System
Setup, and when the count is incremented beyond this maximum value, it
returns to zero. The count never becomes negative. Similarly, if the count is
decremented from 0, it returns to the maximum value.
The number of points on the circular is determined by setting the maximum
value (i.e., the circular maximum value), which can be set between 1 and
FFFF FFFF hex.
Linear Counter
With a Linear Counter, the count range is always 8000 0000 to 7FFF FFFF
hex. If the count decrements below 8000 0000 hex, an underflow is gener-
ated, and if it increments above 7FFF FFFF hex, an overflow is generated.
If an overflow occurs, the PV of the count will remain at 7FFF FFFF hex, and if
an underflow occurs, it will remain at 8000 0000 hex. In either case, counting
will stop and the PV Overflow/Underflow Flag shown below will turn ON to
indicate the underflow or overflow.
The high-speed counter PVs are refreshed during the Motion Control Mod-
ule’s I/O refresh.
When restarting the counting operation, toggle (turn OFF and then ON) the
corresponding counter’s Reset Bit. (A610.01 is the Reset Bit for high-speed
counter 1 and A611.01 is the Reset Bit for high-speed counter 2.)
The following two methods can be set to determine the timing at which the PV
of the counter is reset (i.e., set to 0):
0
2
Decrement
• High-speed counter 1: A608.01
• High-speed counter 2: A609.01
• Phase-Z signal and software reset
• Software reset
1
Increment
Underflow
Encoder
Input A
(Pulse input)
Encoder
Input B
(Direction input)
80000000 hex
Linear Counter
Pulse + Direction Inputs
1
0
Increment
2
3
7FFFFFFF hex
Overflow
2
Section 7-5
Decrement
1