Delta Electronics DVP-F2FR Leaflet

http://www.delta.com.tw/industrialautomation/

5011637600-FME0

2005-07-08

DVP

Peripheral Series

Frequency Measurement Card

Instruction Sheet

WARNING

This frequency measurement card is a specific function card for DVP-EH PLC, please use this card with
DVP-EH MPU.

Frequency measurement card is an OPEN TYPE without any mechnical shield. When installing this card,
user is supposed to power off the MPU and take precaution against static (anti-static glove) to prevent the
surface parts of the card from being damaged.

Do NOT connect the AC power line to any of the input/output terminals, or it will damage the PLC. Make sure
all the wiring is correct before power on.

To enhance the anti-interference performance of product, please make sure terminal FG is properly
grounded.

Frequency measurement card is only workable for the DVP-EH with the version greater than 1.1.

INTRODUCTION

Thank you for choosing Delta DVP series product. The frequency measurement card (DVP-F2FR) is the

function card with 2 external inputs that accept digital signals. By using FROM-TO instruction, PLC can
read/write the data or parameter in the frequency measurement card.

There are 255 built-in CRs (Control Register) in DVP-F2FR with 16 bits for each register. DVP-EH MPU can

control the function of DVP-F2FR by programming the CRs.

Nameplate Explanation:

Model:

VX.XX

MADE IN XXXXXX

DVPF2FR0T5280001

DVP-F2FR

Mode Number

Serial Number & Barcode

Version

Serial Number Explanation:

Production number
Production week
Production year 2005

Production factory (Taoyuan plant)

Version type
Production model

Product Outline:

Power indicator

Dismounting Holder
(for dismounting from PLC)

Vertical view

Screw hole

Terminal

RUN/STOP

indicator

Terminal

SPECIFICATION

3.1

Basic Specification:

Electric Level

Terminals [A+] & [A-], [B+] & [B-]: DC22~30V, 8~12mA.

SINK or SOURCE

Input Signal

Pulse Type

t1: rising/falling time  ≦0.8us
t2: ON/OFF pulse bandwidth  ≧2.5us
t3: phase difference of A, B phase  ≧1us

Storage

-25

C~70

C (Temperature), 5~95% (Humidity)

Storage and

Environment

Operation Operation:

C~55

C (Temperature), 50~95% (Humidity), Pollution degree: 2

3.2 Operation mode:

There are 3 types of operation mode for the frequency measurement card. User can decide the operation mode by
setting CR1. Detail information as follows:

Mode 1: Pulse Interval Length Measurement (CR1=K1)

Measurement method of pulse interval:

Interval of rising-edge

Interval of falling-edge

Inputs of pulse interval measurement: F0, F1.

Time unit of pulse interval measurement: 50ns, 100ns.

Interrupt function: I180 will be executed after frequency measurement card detects rising edge or falling

edge in F0 and F1. And bit 0 of CR9 will inform interrupt trigger by F0 while bit1 of CR9 by F1. For more
information, please see section 6.1.

Input frequency range: 1Hz~1kHz.

Accuracy: ±0.01% (max.)

Mode 2: High-speed Counter (CR1=K2)

There are 3 types for mode 2 the high-speed counter. The maximum input frequency of Pulse/Direction can be

up to 200kHz. Explanation as follows:

Pulse/Direction: F0 is pulse input point. F1 is the signal to control the count-up or count-down. Counting

method is shown as diagram as follow:

Count down

Count up

Count value

A/B-phase two times frequency: F0 is the input pulse of A phase and F1 is the input pulse of B phase.

Counting method is shown as follow:

Count down

Count up

Count value

F0 (A phase)

Value

Rising-edge

Falling-edge

High Count-down

Count-up

(B phase)

Low Count-up

Count-down

A/B-phase four times frequency: F0 is the input pulse of A phase and F1 is the input pulse of B phase.

Counting method is shown as follow:

Count up

Count down

Count value

Mode 3: Pulse Number Capture (CR1=K3)

Input point: F0 is pulse input point. F1 is the signal to capture pulse number.

Following diagram show the count method of pulse number:

Pulse Captured Period

The calculation of the pulse numbers for F0 is based on the interval between two rising edge or falling

edge of F1.

Interrupt function: when PLC set M1019 (flag of operation mode setting for frequency measurement card)

and D1034 (flag of operation mode setting for frequency measurement card) to set up operation mode,
I180 will be triggered based on the rising-edge or falling-edge of F1. If PLC has I180, it will execute I180.

Accuracy: ±1 pulse.

CONTROL REGISTER

DVP-EH MPU perform read/write operation to the CR via programming FROM-TO instruction.

CR will re

Control Register Explanation Table:

CR NO.

Attribute

Factory

setting

Latched

Mode

Function explanation

R H2A0

System default, read only, number=H’2A0

Frequency measurement card execution mode

K1 (mode 1)

K2 (mode 2)

K3 (mode 3)

R/W* K0 °

Pulse interval

measurement

High-speed counter

Pulse number

capture

Frequency measurement card Run of Stop

K0 K1

R/W K0 °

1,2,3

Stop Run

R/W* K0 °

1,3

F0 record item (range 0~40)

R/W* K0 °

1,3

F1 record item (range 0~40)

Trigger by rising edge or falling edge

rising edge=0, falling-edge=1

CR5 Low byte

CR5 High byte

R/W* K0 °

1,3

F0 F1

Reserved

R/W* K2 °

F0 measure time unit

R/W* K2 °

F1 measure time unit

50ns measure unit K1

100ns measure unit K2

R K0

Mode 1: interrupt trigger flag

When F0 trigger I180, bit0 of CR9 will be ON.
When F1 trigger I180, bit1 of CR9 will be ON.

When PLC read CR10~CR11, bit0 of CR9 will be OFF.
When PLC read CR12~CR13, bit1 of CR9 will be OFF.

#11

#10

R K0

F0 pulse interval measurement

#13

#12

R K0

F1 pulse interval measurement

#15

#14

R K0

F0 value of frequency floating point

#17

#16

R K0

F1 value of frequency floating point

#19

#18

R K0

F0, F1 rising-edge or falling-edge, time difference

#21

#20

R/W K0 °

2 High-speed

counter

value

High-speed counter value won’t
be cleared when frequency
measurement card stop

High-speed counter mode

K0 K1 K2

#22

R/W* K0 °

Pulse/Direction

A/B phase two

times frequency

count

A/B four times

frequency count

Indication flag of count up or count down

K0 K1

#23

R K0

Count up

Count down

Flag of start-up counting of high-speed counter

K0 K1

#24

R/W K0 °

Stop counting

Start counting

#26

#25

R/W K0 °

Number of captured pulse

Method of pulse count

K0 K1

#27

R/W* K0 °

Pulse number non-accumulated

Pulse number accumulated

#28

R/W K0 °

F0 time-out setting (K0~K32767)

#29

R/W K0 °

F1 time-out setting (K0~K32767)

#30~#32 Reserved

#33

W* K0

Return to factory setting

When writing “1” into CR33, all the CR of frequency measurement
card will return to factory setting and modify former “1” as “0”.

#34

R K0

Version explanation: high byte is the value in the left side of decimal
and low byte is the value in the right side of decimal. e.g. H1000 is

F0 F1

Value

Rising-edge Falling-edge

Value

Rising-edge Falling-edge

High Count-down Count-up

High Count-up Count-down

Low Count-up Count-down

Low Count-down

Count-up