77
High-speed Counter Board
Section 2-1
Procedure for Using High-speed Counters
Determine counting rate, Input Mode,
reset method, Numeric Range Mode,
form in which PV of high-speed counter
data is stored, and external output
method.
Set input voltages
(switches on Board).
Mount Board and wire inputs.
Counting rate: 50 kHz/500 kHz
Input Modes:
Differential Phase Mode; Pulse/Direction Mode; Up/Down Mode
Reset methods: Phase Z + software reset; software reset
Numeric Range Modes: Ring Mode or Linear Mode
Form in which PV of high-speed counter data is stored:
8-digit BCD or 8-digit hexadecimal
External output method:
Sourcing or Sinking switching of transistor output
Counting rate: 50 kHz/500 kHz
Input Modes:
Differential Phase Mode; Up/Down Mode; Pulse/Direction Mode
Reset methods:
Phase Z + software reset; software reset
Numeric Ranges: Ring Mode or Linear Mode
External output method:
Sourcing or Sinking switching of transistor output
Form in which PV of high-speed counter data is stored:
8-digit BCD; 8-digit hexadecimal
PC Setup
(Slot 1: DM 6602, DM 6640, DM 6641
Slot 2: DM 6611, DM 6643, DM 6644)
Ladder program
REGISTER COMPARISON TABLE (CTBL(63)):
Port specification; comparison table registration; comparison start
MODE CONTROL (INI(61)):
Port specification; PV change; comparison start
HIGH-SPEED COUNTER PV READ (PRV(62)):
Reading PV of high-speed counter and status of comparison.
Determine count check (comparison)
method and internal/external bit patterns.
Count check methods: Target value or range comparison
Output bit patterns when conditions met:
Internal and external output bits
