RS Automation X8 Series, Instruction Manual

Page: 173 / 327

X8 Instruction Set Reference Manual
Timer and Counter Instructions 8 - 7
TOR - Retentive Timer,
On-Delay
Instruction Type: output
Use the TOR instruction to delay turning on an output.
The TOR begins to count time base intervals when the rung conditions
become true. As long as the rung conditions remain true, the timer increments
its accumulator until the preset value is reached.
The TOR retains the accumulated value when the following occur:
• rung conditions become false
• you change the PLC mode from run or test to program
• a fault occurs
When you return the PLC to the RUN or TEST mode, or the rung conditions
go true, timing continues from the retained accumulated value. TOR timers are
retained through power cycles and mode changes.
CLKR - Read High Speed
Clock Time
Instruction Type: output
The CLKR instruction is provides a high performance timestamp.
This 32 bit value increments every 10 μ s after power-up.
ATTENTION
Because the RSTA instruction resets the accumulated value and
internal flags, do not use the RES instruction to reset a timer address
used in a TOF instruction. If the TOF accumulated value and status bits
are reset, unpredictable machine operation may occur.
TOR
EN ENO
Timer TM9.3 -
BASE
1.0 -
PRE
2 <
ACC > 0
Enable Done
CLKR
EN ENO
OUT - F5.4
> 1005546.0