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Unit Specifications Section 2-1
Programming
Console bus
Used for communications with
Programming Consoles.
Ye s ( S W 7 : O N ) N o N o
Peripheral bus Used for communications with
Programming Devices such as CX-Pro-
grammer.
Ye s ( S W 7 : O N ) N o N o
Host Link
(SYSMAC WAY)
Used to access the CPU Unit’s I/O memory
and programs using Host Link commands.
Supports communications with Program-
ming Devices and OMRON PTs. Commu-
nications can be initiated from the CQM1H
in this mode.
Ye s ( S W 7 : O N ) Ye s Ye s
No-protocol Used for sending or receiving up to
256 bytes of data using special instructions
with no protocol or conversion.
Ye s ( S W 7 : O N ) Ye s Ye s
1:1 Data LInk Used for 1:1 communications via a data
link with another CQM1H or with a CQM1,
CPM1, C200HX/HG/HE, or C200HS PC.
No Yes Yes
NT Link
(1:1 mode,
1:N mode)
Used for data exchange with OMRON PTs
without program. One-to-one or
one-to-many (PC:PT) connections sup-
ported.
Note The 1:1 mode and 1:N mode are not
compatible. Be sure to use the cor-
rect communications port at the PT.
No Yes (1:1 mode
only)
Yes (1:1 mode or
1:N mode)
Protocol macro Used to freely exchange data with
general-purpose external devices with a
serial port (e.g., RS-232C).
Note This mode is supported only by a Se-
rial Communications Board.
No No Yes
Clock Some Memory Cassette are equipped with a clock.
Note Used to store the time when errors occur.
Input time
constants
Used to set the ON (or OFF) response times for DC Input Units.
Available settings: 1, 2, 4, 8, 16, 32, 64, 128 ms.
Power OFF
detection time
AC power supply: 10 to 25 ms, DC power supply: 5 to 25 ms
Memory
protection
Held Areas: Holding bits, contents of Data Memory and Extended Data Memory, and status of the
counter Completion Flags and present values.
Note If the I/O Hold Bit (SR 25212) is turned ON, and the PC Setup is set to maintain the
I/O Hold Bit status when power to the PC is turned ON, the contents of the IR area and the LR
area will be saved.
Sending
commands to a
Host Link com-
puter
Host Link command responses can be sent to a computer connected via the Host Link System using
the TXD(––) (communications port output) instruction.
Remote
programming and
monitoring
Host Link or peripheral bus communications via a CPU Unit’s serial communications port can be used
for remote programming and remote monitoring of the PC through a Controller Link System.
(This function is, however, not supported for the serial communications ports on the Serial
Communications Board.)
Program check Program checks are performed at the beginning of operation for items such as no END(01) instruction
and instruction errors.
CX-Programmer can also be used to check programs. (The level of program checking can be set.)
Battery life 5 years at 25°C
(Depends on the ambient temperature and power supply conditions. Minimum: 1 year.)
Battery replacement must be performed within 5 minutes.
Self-diagnostics CPU errors (watchdog timer), I/O verification errors, I/O bus errors, memory errors, FALS system
errors (FALS instruction execution or cycle monitor time over), FAL system errors (FAL instruction
execution or PC Setup error etc.), battery errors, Cycle Time Over errors and communications port
errors.
Item Specification