Omron CJ2 - Page 50

1 Overview
1-14
CJ2 CPU Unit Hardware User’s Manual
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 ---
Host Link (SYSWAY) Communications Host Link commands or FINS commands placed between Host Link headers
and terminators can be sent to 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 func-
tions, 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. FINS and CIP
commands can be sent/received.
Serial Gateway This gateway enables receiving and automatically converting FINS to the Com-
poWay/F.
EtherNet/IP Port 100Base-TX/10Base-T
Protocols: TCP/IP, UDP, ARP, ICMP (ping only), BOOTP
Applications: FINS, CIP, POP3, SMTP, SNTP, DNS (Client), FTP (Server)
CIP Commu-
nications
Service
Tag Data Links Programless cyclic data exchanges with the devices on the EtherNet/IP net-
work.
Message Communications Any CIP commands can be transferred with the devices on the EtherNet/IP net-
work.
FINS Com-
munications
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 (0.2 ms min., Unit: 0.1 ms).
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 CPU Bus Unit.
Clock Clock Function Cock 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 occurs 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.