Omron FQM1-MMA21, FQM1-CM001, FQM1-MMP21 Appendix C, Constant Cycle Time, Watch Cycle Time

System Setup, Auxiliary Area Allocations, and Built-in I/O Allocations Appendix C

Note The RS-232C port settings can also be changed with the STUP (237) instruction. The RS-232C Port Settings Changing Flag (A410.15) will remain ON from the time STUP (237) is executed until the set- tings have actually been changed.

				CM001
FLEXIBLE		RDY
MOTION		RUN
CONTROLLER		ERR
		PRPHL	ON	1 2	OFF
		COMM1
		COMM2
	PERIPHERAL		1		2
	PORT				CN1
					RS422
			39		40

RS-232C Port Settings

The standard (default) settings are as follows: Host Link Mode

1 start bit

7-bit data Even parity 2 stop bits 9,600 baud rate

If any other serial communications mode is being used (e.g., NT Link, no-protocol, peripheral bus, or Host Link), change the baud rate or other settings as requried.

Note The following data is set for no-protocol mode.

Send delay

Data sent

Time

TXD(236)

Messages Sent and Received with No-protocol Mode

End code

No

Yes

CR+LF

Start code

No

Data

Data

ED

Data

CR+LF

Yes

ST

Data

ST

Data

ED

ST

Data

CR+LF

Received bytes

Data: 1 to 256 bytes

Constant Cycle Time

Set the cycle time to a non-zero value, e.g., to create a consistent motor control cycle. This setting is effective only when the actual cycle time is shorter than the constant cycle time setting. If the actual cycle time is longer than the constant cycle time setting, the actual cycle time will remain unchanged.

Note The constant cycle time setting cannot be changed while the Module is in RUN or MONITOR mode.

Constant

(minimum) time

Watch Cycle Time

If the cycle time exceeds the watch (maximum) cycle time setting, the Cycle Time Too Long Flag (A401.08) will be turned ON and FQM1 operation will be stopped. This setting must be changed if the normal cycle time exceeds the default watch cycle time setting of 50 ms.

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