Omron NJ1019000 NJ1 programable logic controller

Omron   NJ1019000

NJ1 programable logic controller built-in EtherNet/IP™ up to 32 connections, EtherCAT® up to 0 synchronous axes

Specifications

Controller functionality    Sequence control

Max. number of synchronous axes    0

Max. number of axes (incl. virtual)    0

Primary task cycle time    1 ms

Program memory    3 MB

Variables memory    0.5 MB

Communication port(s)    EtherCAT Master, EtherNet/IP, USB

Communication option(s)    CAN, CompoNet Master, DeviceNet Master, DeviceNet Slave, EtherCAT Slave,

MODBUS Master, MODBUS Slave, PROFIBUS DP Master, PROFIBUS DP Slave, PROFINET Master, Serial RS-232C, Serial RS-422. Serial RS-485

Max. number of remote I/O nodes    64

I/O system    CJ I/O Bus

Max. number of expansion units    40

Product Weight (unpacked)    627 g

Data Area Structure

When designating a data area, the acronym for the area is always required for

any but the IR and SR areas. Although the acronyms for the IR and SR areas are

often given for clarity in text explanations, they are not required, and not entered,

when programming. Any data area designation without an acronym is assumed

to be in either the IR or SR area. Because IR and SR addresses run consecu

tively, the word or bit addresses are sufficient to differentiate these two areas.

An actual data location within any data area but the TC area is designated by its

address. The address designates the bit or word within the area where the de

sired data is located. The TC area consists of TC numbers, each of which is used

for a specific timer or counter defined in the program. Refer to 3-8 TC Area for

more details on TC numbers and to 5-13 Timer and Counter Instructions for in

formation on their application.

The rest of the data areas (i.e., the IR, SR, HR, DM, AR, and LR areas) consist of

words, each of which consists of 16 bits numbered 00 through 15 from right to

left. IR words 000 and 001 are shown below with bit numbers. Here, the content

of each word is shown as all zeros. Bit 00 is called the rightmost bit; bit 15. the

leftmost bit.

NJ1019000

The term least significant bit is often used for rightmost bit; the term most signifi

cant bit, for leftmost bit. These terms are not used in this manual because a

single data word is often split into two or more parts, with each part used for dif

ferent parameters or operands. When this is done, the rightmost bits of a word

may actually become the most significant bits, i.e., the leftmost bits in another

word,when combined with other bits to form a new word.

he DM area is accessible by word only; you cannot designate an individual bit

within a DM word. Data in the IR, SR, HR, AR, and LR areas is accessible either

by word or by bit, depending on the instruction in which the data is being used.

To designate one of these areas by word, all that is necessary is the acronym (if

required) and the two-, three-, or four-digit word address. To designate an area

by bit, the word address is combined with the bit number as a single four- or five

digit address. The following table show examples of this. The two rightmost dig

its of a bit designation must indicate a bit between 00 and 15. i.e., the rightmost

digit must be 5 or less the next digit to the left, either 0 or 1.

The same TC number can be used to designate either the present value (PV) of

the timer or counter, or a bit that functions as the Completion Flag for the timer or

counter. This is explained in more detail in 3-8 TC Area.

Area Word designation

Bit designation

000 00015 (leftmost bit in word 000)​

Not possible

TC 215 (designates PV) TC 215 (designates completion flag)

LR LR 12 LR 1200

Word data input as decimal values is stored in binary-coded decimal (BCD);

word data entered as hexadecimal is stored in binary form. Each four bits of a

word represents one digit, either a hexadecimal or decimal digit, numerically

equivalent to the value of the binary bits. One word of data thus contains four

digits, which are numbered from right to left. These digit numbers and the corre

sponding bit numbers for one word are shown below.

3 2 1 0

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

When referring to the entire word, the digit numbered 0 is called the rightmost

digit; the one numbered 3. the leftmost digit.

When inputting data into data areas, it must be input in the proper form for the

intended purpose. This is no problem when designating individual bits, which