Datasheet

CJ2M-CPU3@/-CPU1@/-MD21@
10
*12.A Serial Option Board is required to use a serial port for the CJ2M-CPU3@ CJ2M CPU Unit.
*13.Supported only by the CJ2M-CPU3@.
Function Description
Communications −
Peripheral (USB)
Port
Peripheral Bus
Bus for communications with various kinds of Support Software running on a personal
computer. High-speed communications are supported.
Serial Port (Option) *12 Application is possible when a Serial Communications Option Board is mounted.
Host Link (SYSWAY) Communications
Host Link commands or FINS commands placed between Host Link headers and terminators
can be sent from a host computer or PT to read/write I/O memory, read/control the operating
mode, and perform other operations for PLC.
No-protocol Communications
I/O instructions for communications ports (such as TXD/RXD instructions) can be used for
data transfer with peripheral devices such as bar code readers and printers.
NT Link Communications
I/O memory in the PLC can be allocated and directly linked to various PT functions, including
status control areas, status notification areas, touch switches, lamps, memory tables, and
other objects.
Peripheral Bus
Bus for communications with various kinds of Support Software running on a personal
computer. High-speed communications are supported.
Serial Gateway This gateway enables receiving and automatically converting FINS to the CompoWay/F.
Serial PLC Links
Data is exchanged between CPU Units using serial ports without communications
programming. PTs set to the 1:N NT Link protocol can be included in the network.
EtherNet/IP Port *13
100Base-TX/10Base-T
Protocols: TCP/IP, UDP, ARP, ICMP (ping only), BOOTP
Applications: FINS, CIP, SNTP, DNS (Client), FTP (Server)
CIP
Communications
Service
Tag Data Links Programless cyclic data exchanges with the devices on the EtherNet/IP network.
Message Communications Any CIP commands can be received from the devices on the EtherNet/IP network.
FINS
Communications
Service
Message Communications Any FINS commands can be transferred with the devices on the EtherNet/IP network.
Interrupt
Scheduled Interrupts Tasks can be executed at a specified interval (minimum of 0.2 ms, Unit: 0.1 ms).
Resetting and restarting with MSKS(690)
When MSKS(690) is executed, the internal timer is restarted and the time to first interrupt is
set to a fixed value.
Reading present value of internal timer with
MSKS(690)
MSKS(690) can be used to read the time that has elapsed until the schedule interrupt is started
or since the previous scheduled interrupt.
Power OFF Interrupts A task can be executed when CPU Unit's power turns OFF.
I/O Interrupt Tasks A task can be executed when an input signal is input to an Interrupt Input Unit.
External Interrupt Tasks A task can be executed when interrupts are requested from a Special I/O Unit or a CPU Bus Unit.
Clock
Clock Function
Clock data is stored in memory.
Accuracy (Accuracy depends on the temperature.)
Ambient temperature of 55°C: −3.5 to +0.5 min error per month
Ambient temperature of 25°C: −1.5 to +1.5 min error per month
Ambient temperature of 0°C: −3 to +1 min error per month
Operation Start Time Storage The time when operating mode was last changed to RUN mode or MONITOR mode is stored.
Operation Stop Time Storage
The last time a fatal error occurred or the last time the operating mode was changed to
PROGRAM mode is stored.
Startup Time Storage The time when the power was turned ON is stored.
Power Interruption Time Storage The time when the power is turned OFF is stored.
Total Power ON Time Calculation The total time that the PLC has been ON is stored in increments of 10 hours.
Power ON Clock Data Storage A history of the times when the power was turned ON is stored.
User Program Overwritten Time Storage The time that the user program was last overwritten is stored.
Parameter Date Storage The time when the Parameter Area was overwritten is stored.
Power
Supply
Management
Memory Protection
Holding Area data, DM Area data, EM Area data, Counter Completion Flags, and counter
present values are held even when power is turned OFF. CIO Area, Work Area, some Auxiliary
Area data, and Timer Completion Flags, timer present values, index registers, and data
registers can be protected by turning ON the IOM Hold Bit in the Auxiliary Area, and by also
setting the IOM Hold Bit to “Hold” in the PLC Setup.
Power OFF Detection Time Setting
The detection time for power interruptions can be set.
AC power supply: 10 to 25 ms (variable)
DC power supply: 2 to 5 ms (CJ1W-PD022) or 2 to 20 ms (CJ1W-PD025)
Power OFF Detection Delay Time
The detection of power interruptions can be delayed: 0 to 10 ms
(Not supported by the CJ1W-PD022.)
Number of Power Interruptions Counter The number of times power has been interrupted is counted.