6 Introduction of Functions
6.1 Functions List
41
FX3U-16CCL-M User's Manual
1
Introduction
2
Specification
3
System
Configuration
4
Installation
5
Wiring
6
Introduction of
Functions
7
Data Link
Processing
Time
8
Parameter
Setting
9
Data Link
Procedure
10
Buffer Memory
6. Introduction of Functions
6.1 Functions List
1. Basic Functions
2. RAS Functions
3. Handy functions
Function Outline Reference
Communication between master
station and remote I/O stations
Transfers ON/OFF information with remote I/O stations.
Subsection
6.2.1
Communication between master
station and remote device stations
Transfers ON/OFF information and the numeric data with remote device stations.
Subsection
6.2.2
Communication between master
station and intelligent device
stations
Transfers ON/OFF information and the numeric data with intelligent device stations.
Subsection
6.2.3
Communication in compound
system
Transfers data with remote I/O stations, remote device stations and intelligent device
stations.
Subsection
6.2.4
Function Outline Reference
Slave station cutoff function
Cuts off only slave stations in which data link is disabled by power OFF, etc., and
continues the data link using only normal slave stations.
Subsection
6.3.1
Automatic return function
Allows a slave station which was disconnected from the data link by power OFF, etc.
to automatically join the data link again when it recovers to normal status.
Subsection
6.3.2
Data link status setting against error
in master station PLC CPU
Sets the data link status (continue or stop) for a case in which an operation stop error
occurs in the master station PLC.
Subsection
6.3.3
Setting of input data status from
data link faulty station
Sets the status (clear or keep) of the input (receive) data from a station in which data
link is disabled due to power OFF, etc.
Subsection
6.3.4
Slave station refresh/compulsory
clear setting in case of
programmable controller CPU
STOP
Sets whether output (send) data to the slave stations will be refreshed or compulsorily
cleared when the programmable controller CPU enters STOP mode.
Subsection
6.3.5
Consistency control function
Consistency control functions assure data consistency for 1 word (16 bits) or more
when read or written by the FROM/TO instructions, or data consistency for 2 words
(32 bits) or more when read or written by the DFROM/DTO instructions.
Subsection
6.3.6
Function Outline Reference
Reserved station function
Sets slave stations to be connected in the future as reserved ones so that such
stations are not handled as data link faulty stations.
Subsection
6.4.1
Error invalid station function
Sets slave stations as "error invalid" so that such stations are not handled as data link
faulty stations.
Subsection
6.4.2
Temporary error invalid station
specification function
Prevents units specified from being treated as data link faulty stations temporarily
during online operation.
Subsection
6.4.3
Data link stop/restart Stops or restarts the data link that is being executed.
Subsection
6.4.4
Station number overlap check
function
Checks for the overlapping of number of occupied stations.
Subsection
6.4.5
Increasing the number of cyclic
points
Allows the number of cyclic points per module to be increased from 128 points for RX/
RY and 16 points for RWr/RWw in the ver. 1 mode to up to 224 points for RX/RY and
32 points for RWr/RWw in the ver. 2 mode.
Subsection
6.4.6