IDEC FT1A Series User Manual

5: S PECIAL F UNCTIONS
5-8 S MART AXIS P RO /L ITE U SER ' S M ANUAL FT9Y-B1378
Internal Relay ‘Keep’ Designation
Shift Register ‘Keep’ Designation
Counter ‘Clear’ Designation
Data Register ‘Clear’ Designation
For the range of data registers that support the keep designation, see Chapter 7 "Device Addresses" - "Device Addresses" on page
7-1.
Notes:
• Relays and registers specified as Clear All or Clear Specified Range are cleared when the SmartAXIS starts operation. The values while
the power is off are retained until the power is turned on and operation is started.
• Keep/clear settings cannot be configured for special data registers. They operate the same as Clear All.
• Keep/clear settings cannot be configured for special internal relays. For operation when the power is shut off and when stopped, see Chapter
7 "Device Addresses" - "Special Internal Relays" on page 7-2.
Clear All: All internal relay statuses are cleared at startup (default).
Keep All: All internal relay statuses are maintained at startup.
Keep Specified Range: A specified range of internal relays are maintained at startup. Enter the start “keep” number in the left field and
the end “keep” number in the right field. The start “keep” number must be smaller than or equal to the end
“keep” number.
Valid internal relay numbers are M0 through M1277. Special internal relays cannot be designated.
When a range of M50 through M100 is designated as shown in the example above, M50 through M100 are keep
types, M0 through M47 and M101 through M1277 are clear types.
Clear All: All shift register bit statuses are cleared at startup (default).
Keep All: All shift register bit statuses are maintained at startup.
Keep Specified Range: A specified range of shift register bits are maintained at startup. Enter the start “keep” number in the left field
and the end “keep” number in the right field. The start “keep” number must be smaller than or equal to the end
“keep” number.
Valid shift register bit numbers are R0 through R127.
When a range of R17 through R32 is designated, R17 through R32 are keep types, R0 through R16 and R33
through R127 are clear types.
Keep All: All counter current values are maintained at startup (default).
Clear All: All counter current values are cleared at startup.
Clear Specified Range: A specified range of counter current values are cleared at startup. Enter the start “clear” number in the left field
and the end “clear” number in the right field. The start “clear” number must be smaller than or equal to the end
“clear” number.
Valid counter numbers are C0 through C199.
When a range of C0 through C10 is designated, C0 through C10 are clear types, and C11 through C199 are keep
types.
Keep All: All data register values are maintained at startup (default).
Clear All: All data register values are cleared at startup.
Clear Specified Range: A specified range of data register values are cleared at startup. Enter the start “clear” number in the left field and
the end “clear” number in the right field. The start “clear” number must be smaller than or equal to the end
“clear” number.
Valid data register numbers are D0 through D1999. Special data registers cannot be designated.
When a range of D100 through D1999 is designated, D0 through D99 are keep types, and D100 through D1999
are clear types.
End Keep Number (≥ Start Keep Number)
Start Keep Number

IDEC FT1A Series Specifications

General

Programming Software	WindLDR
Type	Programmable Logic Controller (PLC)
Display	LCD (varies by model)
Communication Ports	RS232C/RS485 (built-in), USB (programming), Ethernet (optional)
Dimensions	Varies by model
Weight	Varies by model
Model	FT1A Series