76
High-speed Counter Board
Section 2-1
Using PRV(62)
The status of high-speed counters 1 to 4 can be read using PRV(62) in the
manner shown below.
The meaning of the individual bits of D, in which the status of high-speed
counters 1 to 4 is stored, is given in the following table.
High-speed counter
Value specified in P
Slot 1
Slot 2
High-speed counter 1
101
001
High-speed counter 2
102
002
High-speed counter 3
103
003
High-speed counter 4
104
004
Bits
Function
00 to 07
Comparison Results: Internal Output Bits
08 to 11
Comparison Results: External Output Bits for Outputs 1 to 4
The result of an OR operation on bits in same bit positions for all the
high-speed counters 1 to 4 will be output. (See also note.)
12
Counter Operating Flag (0: Stopped; 1: Running)
13
Comparison Flag (0: Stopped; 1: Running)
14
PV Overflow/Underflow Flag (0: No; 1: Yes)
15
SV Error Flag (0: Normal; 1: Error)
P: Port specifier
C: 001
D: First destination word
(@)PRV(62)
P
C
D
