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MELSEC-Q
5   DETAILS AND SETTING OF FUNCTIONS 
 
CHAPTER 5 DETAILS AND SETTING OF FUNCTIONS 
This chapter explains the details and settings of the QD60P8-G functions. 
 
5.1 Count Operation 
5.1.1 Pulse input method 
The pulse input method of the QD60P8-G is 1-phase input and addition count. 
(Subtraction count is not available.) However, it is allowed to set whether pulses will be 
counted on the rise or fall by using the intelligent function module switches. Refer to 
Section 4.5 for details of the switch settings of intelligent function module. 
 
Pulse input 
method 
Count timing 
Pulse input from 
pulse generator (external)
Input pulse value
Buffer memor
 addresses: 10,11
1 2 3
 
Counted on rise (
) 
of pulses 
1-phase 
Pulse input from 
pulse generator (external)
Input pulse value
(Buffer memory addresses: 10,11)
1 2 3
 
Counted on fall (
) 
of pulses 
 
 
 
 
 
 
 
 
 
 
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