Omron CJ2 CPU UNIT User Manual page 58

1 Overview
Items
Tasks Type of Tasks
Number of Tasks
Symbols (Vari- Type of Symbols
ables)
Data Type of Symbols
Maximum Size of Symbol
Array Symbols (Array Variables)
Number of Array Elements
Number of Registrable Network Symbols
*8
(Tags)
Length of Network Symbol (Tag) Name
Encoding of Network Symbols (Tags)
*8 Supported only by the CJ2H-CPU6@-EIP and CJ2M-CPU3@.
*9 This data type cannot be used in Function blocks.
*10 This data type can be used only in Function blocks.
*11 Supported only when CX-Programmer version 9.0 or higher is used.
1-16
CJ2H-
CPU64 CPU65 CPU66 CPU67
(-EIP) (-EIP) (-EIP)
Cyclic tasks
Interrupt tasks (Power OFF interrupt tasks, scheduled interrupt tasks, I/O interrupt tasks, external
interrupt tasks, and input interrupt tasks
Cyclic tasks: 128
Interrupt tasks: 256
(Interrupt tasks can be defined as cyclic tasks to create extra cyclic tasks. Therefore, the total
number of cyclic tasks is actually 384 max.)
Local symbols: Can be used only within a single task in the PLC.
Global symbols: Can be used in all tasks in the PLC.
*8
Network symbols (tags) : I/O memory in the CPU Unit can be externally accessed using sym-
bols, depending on parameter settings.
BOOL (bit)
UINT (one-word unsigned binary)
UDINT (two-word unsigned binary)
ULINT (four-word unsigned binary)
INT (one-word signed binary)
DINT (two-word signed binary)
LINT (four-word signed binary)
UINT BCD (one-word unsigned BCD)
UDINT BCD (two-word unsigned BCD)
ULINT BCD (four-word unsigned BCD)
REAL (two-word floating-point)
LREAL (four-word floating-point)
CHANNEL (word)
NUMBER (constant or number)
WORD (one-word hexadecimal)
DWORD (two-word hexadecimal)
LWORD (four-word hexadecimal)
STRING (1 to 255 ASCII characters)
*10
TIMER (timer)
*10
COUNTER (counter)
User-defined data types (data structures)
32k words
One-dimensional arrays
32,000 elements max.
20,000 max.
*8 255 bytes max.
*8 UTF-8
CPU68 CPU CPU
(-EIP) (-EIP) 11/31 12/32
*3
)
*9
*9
*9
*11
2,000 max.
CJ2 CPU Unit Hardware User's Manual
CJ2M-
CPU CPU CPU
13/33 14/34 15/35