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Specifications
1-3-3
Function Specifications
Item
Operation method
Number of function blocks
Function block data
preparation/download
Execu-
Func-
Common
tion of
tion
to all
function
block
function
blocks
execu-
blocks
tion
condi-
tions
For indivi-
dual
function
block
Function block
operation cycle
38
Function block method
Total: Max. 727 blocks
Analog
Control
PID and other control functions
operation
Blocks
Operation
Alarm, square root operation,
Blocks
time operations, pulse train
operation, and other operation
functions for various processes
External
Monitoring and setting functions
Controller
for external controllers
Block
Step Ladder Program
Logic sequence and step
block
sequence functions
I/Ot
Field Terminal
Analog I/O function with Analog
block
block
I/O Unit, contact I/O function with
Basic I/O Unit
CPU Unit
Analog data I/O and contact I/O
Terminal block
functions with CPU Unit
Expanded
Analog data I/O and contact I/O
CPU Unit
functions with CPU Unit (direct
Terminal block
I/O with other function block
possible)
Send/Receive
Allocating words in the CPU Unit
All Blocks
for data transfer with standard
blocks
SCADA
Node Terminal
Send to computer
block
Send to networked PC
Receive from networked PC
System Common block System common operation cycle
setting, run/stop command, load
rate monitor, etc.
Function block data prepared by CX-Process Tool (sold separately) and downloaded to
Loop Control Unit
- Operation of all function blocks by turning power ON to the PC (Hot or cold start can be
specified.)
- Function block operation can be stopped by CX-Process Monitor, CX-Process Tool, or
FINS command.
- Hot start (state active before unit was stopped is continued before operation is started)
or cold start (all state signals and function block internally held values are cleared before
operation is started) is possible by CX-Process Monitor, CX-Process Tool or FINS
command.
- Function block operation can be stopped and hot start (state active before Unit was
stopped is continued before operation is started) is possible by CX-Process Monitor, CX-
Process Tool or FINS command.
Standard: Operation of all function blocks is executed at the same operation cycle preset
to ITEM 004 in the System Common block.
Settable operation cycles: 0.1 s, 0.2 s, 0.5 s, 1 s, 2 s (default: 1 s)
Option:
Operation of individual function blocks is executed at the same operation cycle
preset to ITEM 004 in the System Common block.
Settable operation cycles: 0.1 s, 0.2 s, 0.5 s, 1 s, 2 s (default: 1 s)
Note 1:
Note, however, that the external I/O refresh cycle on a single control loop does
not match this operation cycle. This refresh cycle is heavily dependent on the
CPU Unit's cycle time. (See the external I/O refresh cycle item below.)
Note 2:
In the case of the Field Terminal, CPU Unit Terminal, Expanded CPU Unit
Terminal and Node Terminal function blocks for exchanging data with the CPU
Unit, a cycle time approximately 3.3 times or more of the CPU Unit's cycle time
is required in most cases.
Description
Max. 32 blocks
Max. 250 blocks
Max. 32 blocks
Max. 4000 commands
Max. 100 commands/1 block
Can be divided into max. 100
steps
Max. 100 commands/1 step
Max. 80 blocks
Max. 16 blocks
Max. 32 blocks
Max. 2 blocks
Max. 32 blocks
Max. 50 blocks
Max. 100 blocks
Single block
Section
1-3
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