Page 1
NOTES
N otice :
When unpacking the units, check carefully for any external scratches
1.
or other damage. Also, shake the units gently and check for any
abnormal sound.
2.
Turn OFF the power supply to the PT before mounting or dismounting
I/F Units. Correctly mount the I/F Units according to the User’s Manual
of the PT.
3.
Do not touch the PCBs with bare hands. Discharge static electricity
accumulated in your body in advance.
4.
Tighten the mounting brackets evenly. Make sure the panel is not
dirty or warped and that it is strong enough to hold the units.
5.
Do not let metal particles enter the units when preparing the panel.
6.
Double check all the wiring before turning ON the power supply.
7.
Do not perform a dielectric voltage test.
8.
Make sure that the connector screws are properly tightened.
9.
Always tighten the connector screws after connecting communication
cables.
10.
The max. pull load for cables is 30N. Do not apply loads greater than
this.
NOTES
OMRONOMRON
OMRON
OMRONOMRON
NT2S-SF123B-EV2
Programmable Terminal
INSTRUCTION SHEET
Thank you for purchasing this OMRON product.
Please read this Instruction sheet and thoroughly familiarize
yourself with functions and characteristics of the product
before use. Please retain this sheet for future.
For more information on specifications and usage, please
refer to each PT.
Motor is RUNNING
Speed: 1450 RPM
F 6F 5F 4F 3F 2F1
REG
DATA
CLR
Page 3Page 18
Page 20
OMRON
OMRON Corporation 2001. All Rights Reserved. NT2S-2/1001
Page 1
Page 2
11.
Confirm the safety of the system before turning ON or OFF the supply
to the unit.
12.
Start actual application only after sufficiently checking screen data and
the operation of the program in the PLC.
13.
When using the Programming Console functions, confirm system safety
and then perform the following operations :
•
Changing monitor data
•
Changing operation modes
•
Forced setting or resetting
•
Changing preset values or set values.
14.
Do not press the key switch with a force greater than 30N.
15.
Do not accidently press key switches when the backlight is not lit or when
the display does not appear. Confirm the safety of the system before
pressing key switches.
16.
Do not attempt to disassemble, repair or modify the units in any way.
17.
Do not use benzene, paint thinner or other volatile solvents and do not
use chemically treated cloths.
18.
Signals from the key switches may not be input if the switches are
pressed consecutively at high speed. Confirm each input before
proceeding to the next one.
19.
To ensure greater safety for numeric inputs, first check for proper limits
in the PLC.
NOTES
Page 4
Page 17
NOTES
Page 2
Page 19
Page 3
Triggering screens
Pin Connections
As can be seen from the above examples, there are two ways to display
screens with the
1. Keep all the message characters in the data memory ( the Omron
PLCs have lot of data registers which in most applications involving
simple digital controls are not used anyway ) and simply change the
offset register to display different screens.
The user can fill the data memory using the “data display editor” menu of
the PLC programming software.
2. Note that the data memory as well as the program memory can be
used for embedding of data.
Of course, a combination of the two methods can be used to
optimize the memory usage.
NT2S-SF123B-EV2
:
Following are the PLC port pin designations for
PLC port pin # Designation
2, 3, 5 GND
4 VCC (+5V)
6 TXD (Transmit CMOS)
7 RXD (Receive CMOS)
1, 8, 9 N C
NT2S-SF123B-EV2
:
Page 14
OMRON
OMRON Corporation
System Components Division
66 Matsumoto
Mishima-city, Shizuoka 411-8511
Japan.
Tel : (81) 559-77-9633 / Fax : (81) 559-77-9097
Regional Headquarters
OMRON EUROPE B.V.
Wegalaan 67-69, NL-2132 JD Hoofddorp
The Netherlands
Tel : (31) 2356-81-300 / Fax : (31) 2356-81-388
OMRON ELECTRONICS, INC.
1 East Commerce Drive, Schaumburg, IL 60173
U.S.A.
Tel : (1) 847-843-7900 / Tel : (1) 847-843-8568
OMRON ASIA PACIFIC PTE. LTD.
83 Clemenceau Avenue,
#11-01, UE Square,
Singapore 239920
Tel : (65) 835-3011 / Tel : (65) 835-2711
Note : Specifications subject to change without notice.
Printed in India.
Page 7
20.
Do not install the units in any of the following locations :
•
Locations subject to rapid changes in temperature
•
Locations subject to temperatures or humidities outside the
range specified in the specification
•
Locations subject to condensation as the result of high
humidity
•
Locations subject splashing chemicals or solvents
•
Locations subject to oil splashes
•
Locations subject to corrosive or flammable gases
•
Locations subject to strong shock or vibration
•
Locations outdoors subject to direct wind and rain
•
Locations subject to strong ultraviolet light
21.
Take appropriate and sufficient countermeasures when installing
systems in the following locations :
• Locations subject to static elctricity or other forms of noise
• Locations subject to strong electromagnetic or magnetic fields
• Locations subject to possible exposure to radioactivity
22.
The whole system may stop, depending on how the power supply is
turned ON or OFF. Turn ONor OFF the power supply according to the
specified procedure.
Page 16
Page 5
Page 4
123456789
123456789
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
General:
The
NT2S-SF123B-EV2
is intended to be used as a low cost Operator
interface for PLCs which are rich in program memory or data memory
areas such as the Omron C Series PLCs.
The
NT2S-SF123B-EV2
has the following features:
Feature NT2S-SF123B-EV2
Display Backlit 2X16 LCD
LEDs 2
Keys 6
ASCII screens 32 characters
Embedded variables 16
Key definitions:
Each key is mapped from work bits 201.00 to 201.05. Every time a key is
pressed, the corresponding bit as shown in the table below is held on while
the key is pressed. The keys also have alternate functions.
Key Work Bit Register mode function
F1/REG 201.00 Changes register prefix
F2/DATA 201.01 Enters data entry mode
F3/DOWN 201.02 Increments register number or data
depending on mode
F4/UP 201.03 Decrements register number or data
depending on mode
F5/CLR 201.04 Clears data field to 0 / Register field to
first register value
F6/ENT 201.05 Accepts new data and sends to the PLC
Page 8
g.
Put 03032E03H in words DM0213 and DM0214. The
NT2S-SF123B-EV2
will read data in DM0003 and embed in xx.x format.
h.
Move “s “ into DM0215. This command completes the screen by
appending the “s ” to bake time.
This will put the following data in the data words below:
("b" is used for a space, i.e. 20H)
Word ASCII Hex Word ASCII Hex
DM0200 Do #446F DM0208 BA #4241
DM0201 or #6F72 DM0209 KE #4B45
DM0202 :b #3A20 DM0210 T I #5449
DM0203 CL #434C DM0211 ME #4D45
DM0204 OS #4F53 DM0212 :b #3A20
DM0205 ED #4544 DM0213 #0303
DM0206 bb #2020 DM0214 #2E03
DM0207 bb #2020 DM0215 sb #7320
Page 13
How is the unit panel mounted?
Panel
Screw to hold clamp
and unit on Panel
Mounting Clamp
Gasket
Fig. A
Panel
Fig. B
Power Supply
The power supply to the NT2S-SF123B-EV2 is from the PLC. The figure below
shows the connection between the PLC and the unit through a cable.
PLC PORT
DB9 MALE
CONNECTOR
DB9 FEMALE
CONNECTOR
To PLC
Page 6
Programming Port
PLC
Connecting
Cable
Register mode:
In the register mode, the operator can access all the registers and bits
in the PLC.
By pressing the REG key, the operator can scroll through the register
prefixes. By using the UP / DOWN keys, the register numbers can be
accessed. Data can be changed in the registers by pressing the DATA
key. The data field will blink to indicate that the unit is ready to accept
new data. At this time, the UP / DOWN keys can be used to edit data
followed by the ENT key.
It is advisable to create a “password” screen which can block the usage
of the register mode.
Bar Graph:
NT2S-SF123B-EV2
values to be displayed. If Offset register points to DM0200 then put
Hex value 0C0C into DM0200 onwards to display bar graph with the
value in DM0012.
Example:
Put 0C0C into DM0200, DM0201, DM0202, DM0203 and 200 into
DM0020. This will display bar graph 8 characters wide. Maximum
length is 16 characters. Each character on display can display five
vertical lines. To display full bar graph put # 80 into DM0012 and
0C0C from DM0200 to DM0207.
To display Bar Graph with value in DM0013, put 0D0D in DM0200
onwards.
uses DM0012 to DM0015 registers to hold bar graph
Page 15
Page 5
E
xample 2: Embed a variable in the screen
Unit Operations:
Suppose the following screen needs to be displayed on the
NT2S-SF123B-EV2
Door: CLOSED
BAKETIME: 13.6s
Suppose the bake time is available in data word DM0100 and the oven
status is given by bit 001.00.
To display this screen, do the following:
a.
Move number 200 in DM0020 since the screen will be stored in DM0200
onwards.
b.
Move character string “Door:” into 2 words, i.e. DM0200 and DM0201.
c.
Move characters “OPEN” if bit 001.00 is ON or characters “CLOSED” if
001.00 is OFF.
This is a way to implement bit sensitive screens.
e.
In a similar manner, embed the characters “BAKETIME: ” into 5 words
from DM0208.
f.
NT2S-SF123B-EV2
Here we select DM0003 to be used for embedding. So, move the data of
DM0100 into DM0003 so that embedding can be done.
:
uses DM0000 to DM0011 registers for embedding data.
The work bits 200.00 to 200.15 control the mode of operation of the unit.
Work Bit
200.00 Controls LED0
200.01 Controls LED1
200.02 & 200.03 Not used
200.04 to 200.07 Reserved for future use
200.08 & 200.09 00: Screen mode 01: Register mode
200.10 & 200.11 Timeout to screen mode from Operator mode
200.12 to 200.14 Reserved for future use
200.15 To disable data entry in Screen mode
From the above table, it is clear that the unit will display ASCII text (see section
on Screens for more details on this ) if 200.08 and 200.09 are OFF. To allow
operators to view and edit the registers, 200.08 is to be kept ON. If 200.08 is OFF,
the unit will not display any registers and the function keys will only act as push
buttons mapped to the corresponding bits from 201.00. Refer to “Register Mode”
for details. If 200.09 is ON, REG key press will allow an operator to view the registers.
The REG key will scroll through the available register types whereas the UP and
DOWN arrow keys will scroll through the register/bit numbers. After timeout
specified by bits 10 and 11 and if no key is pressed, the unit will switch back to
the Screen mode and display screens. Thus Operator mode is a combination
of Register as well as Screen modes.
Function
10: Operator mode 11: Invalid
00: 10 seconds 01: 20 seconds
10: 30 seconds 11: 40 seconds
(ON : Disable)
Page 12
Page 9
Page 6
Screens
E
xample 1: Display a static screen
The unit displays 32 characters from the PLC memory. These characters
are taken from the PLC data registers.
The unit tracks register DM0020 ( the Offset register ) in the PLC. The number
in DM0020 gives the start address of the data register block which contains the
characters to be displayed. For example, if DM0020 has number 124 in it, the
unit will read 16 registers from DM0124, i.e. from DM0124 to DM0139 and display
the corresponding characters.
Each register contains two bytes. Each ASCII character to be displayed is
one byte. So, each word contains two characters that can be displayed. All the
PLC ladder logic has to do is to put the correct words in the registers being read
by the unit so that a proper screen can be displayed.
As mentioned above, the starting address of the screen data block is
controlled by the Offset register, i.e DM0020. Hence, there can be two methods
of changing the screen to be displayed. One is to keep the value in DM0020
constant and change the data in the screen registers by the ladder logic. Second
is to keep the screen text in the data memory (by editing DM registers) and change
the value in DM0020 so as to point to the correct memory address to display the
desired screen.
It is possible to embed registers in the screens. The unit reads 16 registers
from DM0000 to DM0015 (in which DM0012 to DM0015 are used for Bar Graph)
in every scan. The data in these registers can be embedded in the screens. To
do so, use hex bytes 0 to B (C to F used for Bar Graph) corresponding to register
DM0000 to DM0011 respectively in the screen. Refer to the example given which
explains the embedding of registers. It is possible to embed one data entry field
in screens. It is similar to embedding register, only instead of 0 to F use 10 to 1F
hex bytes to address DM0000 to DM0015. The registers DM0000 to DM0015 can
be edited with this feature one at a time in a screen.
Page 10
Suppose the following screen needs to be displayed on the
NT2S-SF123B-EV2
Last Rinse Cycle
Water pump is on
To display this screen, do the following:
a.
Move number 200 in DM0020 since the screen text will be stored
in DM0200 onwards.
b.
Move character string “Last Rinse Cycle” into 8 words from DM0200.
c.
In a similar manner, the characters “Water pump is on” can be embeded
into 8 words from DM0208. (i.e. from DM0208 to DM0215).
This will put the following data in data words below: ("b" is used for a space)
:
Word ASCII Hex Word ASCII Hex
DM0200 La #4C61 DM0208 Wa #5761
DM0201 st #7374 DM0209 te #7465
DM0202 bR #2052 DM0210 rb #7220
DM0203 in #696E DM0211 pu #7075
DM0204 se #7365 DM0212 mp #6D70
DM0205 bC #2043 DM0213 bi #2069
DM0206 yc #7963 DM0214 sb #7320
DM0207 le #6C65 DM0215 on #6F6E
Page 11
Loading...