Vaisala PLC User manual

Brand: Vaisala

Model: PLC

Type: User manual

IM-EN-PLC-B

Instruction Manual

Direct UTP/IP connectivity with Siemens S7

and Allen-Bradley PLCs

Table of contents

1 Direct connecon to PLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2 Direct UDP/IP connecon between SIEMENS S7 PLC and Vaisala K-Patents®

refractometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.1 Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

3 Using the KP_REFRACTOMETER AOI in Rockwell Studio 5000 for

Allen-Bradley PLCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3.1 Instrucons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

4 Accessing the refractometer web interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1 Direct connecon to PLC

A PR-43 or PR-33 refractometer or a PR-23 system can be connected over direct UDP to a

Siemens S7 or Allen-Bradley PLC. Vaisala provides the soware components that enable di-

rect UDP communicaon between refractometer and PLC. For the connecon, customers only

need to insert the ready-made soware components into their PLC program. The programming

soware components are available for download free of charge at hp://www.vaisala.com/.

The direct UDP/IP connecon allows transmission of refractometer measurement values to the

PLC program. However, only measurement data is transmied, therefore calibraon and other

conguraon sengs cannot be made via this connecon.

1 2 3

4 5 6

7 8 9

- 0 .

BACK

ENTER

25.31

max. 200m (656ft)

PR-8230

PR-23 sensor cable

PLC

Programmable Logic Controller

PR-23 REFRACTOMETER

DTR dual transmitter

PR-8438, Internal Ethernet Cable

M12-4 pin, D-code, F, RJ-45

Ethernet, 0,5m

max. 90m (295ft)

PR-8330

Ethernet converter cable

M12-4 pin, D-code, M

Ethernet (RJ45)

Power 100-240 VAC

mA OUTPUT

Figure 1.1 Connecng a PR-23 system to PLC

+ Blue

- Brown

- Black

+ White

mA-OUTPUT (4-20mA)

24VDC in

F M

PR-33 REFRACTOMETER

M-12-4 pin, A-code, M

M-12-4 pin, D-code, F

non-Ex

PR-8330-010

Cat 5e Ethernet cable (PVC), OD = 6,0mm

10m (30ft) standard, max. 100m (300ft)

PR-8350-010

Cable 4 x 0,75mm2 (PUR), OD = 6,0mm (0.24”)

10m (30ft) standard, max. 100m (300ft)

PLC

Programmable Logic Controller

P4-049

Figure 1.2 Connecng a PR-33 refractometer to PLC

PR-43 REFRACTOMETER

M-12-8 pin, A-code, M

non-Ex

10m (33ft)

1m (3,3ft)

PR-8431

Split cable M12

M12-8 pin, A-code, F

Ethernet (M12-4 pin, D-code,M)

PR-8442-001

mA, 24V

Ethernet converter cable

M12-4 pin, A-code, F

Ethernet (RJ45)

PLC

Programmable Logic Controller

mA, 24V

Figure 1.3 Connecng a PR-43 refractometer to PLC

ETHERNET

mA OUTPUTPower 100-240VAC

JB-UN-PCE/SS-U/M/AC

Junction box for P4 refractometers

Screw terminals

Ethernet, Ground, 24VDC, mA

max. 90m (295ft)

PR-8437

Platform 4 cable

M12-8 pin, A-code, F

Open end

Ethernet, mA, 24V

PR-43-AX

REFRACTOMETER

M-12-8 pin, A-Code, M

Unclassiﬁed area

PLC

Programmable Logic Controller

Figure 1.4 Connecng a PR-43 refractometer with juncon box to PLC

2 Direct UDP/IP connecon between SIEMENS S7 PLC

and Vaisala K-Patents® refractometer

All measurement and diagnosc data can be received from a Vaisala K-PATENTS® refractometer

via UDP/IP communicaon. This follows a simple protocol: a device sends a request to the

refractometer and it sends the data in return. This document and the aached les present an

implementaon of this communicaon on a SIEMENS S7 PLC.

The aached project le is made with TIA Portal V15. It contains a funcon block called “RE-

FRACTOMETER_CONNECTION”. It can be used in other projects, and it gives an instant soluon

of the task. All used FB and DB blocks must be copied as well.

2.1 Usage

IP address of the refractometer must be set in the “TUSEND_address” DB, which is used in Net-

work 4 inside of “REFRACTOMETER_CONNECTION”. Connecng DTR/PR-23 sensorB requires

a change in the “TUSEND_data“ DB. A string with 12 characters (0,0,0,0,0,0,0,4,0,0,0,0) is for

sensorA. For sensorB it should be changed to (0,0,0,0,0,0,0,4,0,0,0,1).

To establish connecon, “UDP_connect” must be set to “1”, while “UDP_disconnect” is “0”. If

successful, “UDP_ready” will change to “1”.

To send data request, “UDP_send” must change from “0” to “1”. Aer that, refractometer

will send the data. Then the values of the local tags on the right side of the “REFRACTOME-

TER_CONNECTION” FB will be updated.

To have constantly updang values, “UDP_send” should change from “0” to “1” cyclically. A

bit of CPU clock memory, or a mer (see an example for that in the aached project: Main

program, Network 2.) can be used.

3 Using the KP_REFRACTOMETER AOI in Rockwell Stu-

dio 5000 for Allen-Bradley PLCs

The KP_REFRACTOMETER Add-On Instrucon, downloadable at www.vaisala.com, enables

Rockwell users to easily extend their PLC soware with Vaisala K-Patents® refractometer con-

necon.

3.1 Instrucons

1. Import the AOI to your project, by right-clicking the “Add-On Instrucons” folder in the

Controller Organizer. In the pop-up window, locate the AOI and import it. It will appear

in the “Add-On Instrucons” folder aerwards. It will also import some user-dened data

types that it requires (See them also in the Controller Organizer).

Using the KP_REFRACTOMETER AOI in

Rockwell Studio 5000 for Allen-Bradley

PLCs

The KP_REFRACTOMETER Add-On Instruction enables Rockwell users to easily extend their PLC

software with K-Patents refractometer connection.

Instructions

1. Import the AOI to your project, by right-clicking the “Add-On Instructions” folder in the

Controller Organizer. In the pop-up window, locate the AOI and import it. It will appear in the

“Add-On Instructions” folder afterwards. It will also import some user-defined data types that

it requires (See them also in the Controller Organizer).

2. Add an instance of KP_REFRACTOMETER to your ladder diagram. You will find it on the Add-

On page of the ladder elements.

3. Create new controller level tags that will be needed for the operation (the names are just

examples here, but the tags will be mentioned with these names later in the document):

NAME (EXAMPLE)

TYPE

VALUE

kp_1

KP_REFRACTOMETER

no need to set

use_refr

BOOL

no need to set

status

String

no need to set

READ_RESP_DATA

no need to set

CREATE

MESSAGE

see below this table

DELETE

MESSAGE

see below this table

SEND

MESSAGE

see below this table

2. Add an instance of KP_REFRACTOMETER to your ladder diagram. You will nd it on the

Add-On page of the ladder elements.

3. Create new controller level tags that will be needed for the operaon (the names are just

examples here, but the tags will be menoned with these names later in the document):

NAME (EXAMPLE) TYPE VALUE

kp_1 KP_REFRACTOMETER no need to set

use_refr BOOL no need to set

status String no need to set

rr READ_RESP_DATA no need to set

CREATE MESSAGE see below this table

DELETE MESSAGE see below this table

SEND MESSAGE see below this table

READ MESSAGE see below this table

SOCKET REQUEST_PARAMETERS Type: 2

Family: 2

Port: any unused available port

Read_Data_Req READ_DATA_REQ Timeout: 1000

BufLen: 300

Write_Data_Out WRT_DATA Timeout: 3000

ToAddr.Family: 2

ToAddr.Port: 50023, which is 1100

0011 0110 0111 binary. Port must be

entered in reversed byte order, which

is 0110 0111 1100 0011, and in

decimal view will be represented as

-15513

ToAddr.Addr: The IP address of the

refractometer. Also must be entered

in reverse byte order.

Buer.LEN: 12

Buer.BUFF: all zeros, except for

byte[3] which is 1, and byte[7] which

is 4.

4. Set up the messages. First, on the KP_REFRACTOMETER instance, set the message tags CRE-

ATE, DELETE, READ and SEND for the inputs CREATE_UDP_SOCKET, DELETE_UDP_SOCKET,

READ_UDP_DATA and SEND_UDP_DATA respecvely. Then, to the right of each input you

will see a pushbuon with the text “…”. Click it, and a pop-up window will appear where

message properes can be set.

READ

MESSAGE

see below this table

SOCKET

REQUEST_PARAMETERS

Type: 2

Family: 2

Port: any unused, available port

Read_Data_Req

READ_DATA_REQ

Timeout: 1000

BufLen: 300

Write_Data_Out

WRT_DATA

Timeout: 3000

ToAddr.Family: 2

ToAddr.Port: 50023, which is

1100 0011 0110 0111 binary. Port

must be entered in reversed byte

order, which is 0110 0111 1100

0011, and in decimal view will be

represented as -15513

ToAddr.Addr: The IP address of

the refractometer. Also must be

entered in reverse byte order.

Buffer.LEN: 12

Buffer.BUFF: all zeros, except for

byte[3] which is 1, and byte[7]

which is 4.

4. Set up the messages. First, on the KP_REFRACTOMETER instance, set the message tags

CREATE, DELETE, READ and SEND for the inputs CREATE_UDP_SOCKET, Delete_All_MSG,

READ_UDP_DATA and SEND_UDP_DATA respectively. Then, to the right of each input you will

see a pushbutton with the text “…”. Click it, and a pop-up window will appear where message

properties can be set.

a. For CREATE:

i. Service Type: Socket Create

ii. Source Element: SOCKET

a. For CREATE:

i. Service Type: Socket Create

ii. Source Element: Socket

iii. Desnaon Element: kp_1.SockNum

iv. On the communicaon page, Path: 1,0

b. For DELETE:

i. Service Type: DeleteSocket

ii. Instance: 0

iii. On the Communicaon page, Path: 1,0

c. For READ:

i. Service Type: ReadSocket

ii. Instance: any number

iii. Source Element: Read_Data_Req

iv. Desnaon Element: rr

v. On the Communicaon page, Path: 1,0

d. For SEND:

i. Service Type: WriteSocket

ii. Instance: any number

iii. Source Element: Write_Data_Out

iv. Source Length: 28

v. On the Communicaon page, Path: 1,0

5. Set the tags kp_1, use_refr, rr, status for the KP_REFRACTOMETER instance, and the inputs

“START”, “Read_Response” and “StatusValueStr” respecvely.

4 Accessing the refractometer web interface

Conguring a refractometer is not possible through direct UDP/IP connecon with PLC, be-

cause direct UDP/IP connecon provides only measurement and status data. The refractometer

can be congured, veried and diagnosed by accessing its built-in web server homepage. The

homepage is accessed by connecng a computer to a refractometer via a switch, a router or a

direct cable connecon. A connecon between refractometer and PLC can be temporarily dis-

connected while changing refractometer parameters – the connecon recovers automacally

aer the connecon is restored. See refractometer manual for details of the refractometer

network sengs.

www.vaisala.com

IM-EN-PLC

Vaisala PLC User manual

Vaisala PLC User manual

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