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4. Parameters
4.1 PLC Constants
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4. Parameters
4.1 PLC Constants
The parameters that can be used in user PLC include PLC constants set in the data type.
Set up data is stored in a file register and is backed up. In contrast, if data is stored in the file register
corresponding to PLC constant by using sequence program MOV instruction, etc., it is backed up.
However, display remains unchanged. Display another screen once and then select the screen
again.
48 PLC constants are set (the setting range is ±8 digits). (Signed 4-byte binary data)
The correspondence between the PLC constants and file registers is listed below. The setting and
display screens are also shown.
Corresponding file registers
Corresponding file registers Corresponding file registers
#
High order Low order
#
High order Low order
#
High order Low order
6301 R4501 R4500 6321 R4541 R4540 6341 R4581 R4580
6302 R4503 R4502 6322 R4543 R4542 6342 R4583 R4582
6303 R4505 R4504 6323 R4545 R4544 6343 R4585 R4584
6304 R4507 R4506 6324 R4547 R4546 6344 R4587 R4586
6305 R4509 R4508 6325 R4549 R4548 6345 R4589 R4588
6306 R4511 R4510 6326 R4551 R4550 6346 R4591 R4590
6307 R4513 R4512 6327 R4553 R4552 6347 R4593 R4592
6308 R4515 R4514 6328 R4555 R4554 6348 R4595 R4594
6309 R4517 R4516 6329 R4557 R4556
6310 R4519 R4518 6330 R4559 R4558
6311 R4521 R4520 6331 R4561 R4560
6312 R4523 R4522 6322 R4563 R4562
6313 R4525 R4524 6333 R4565 R4564
6314 R4527 R4526 6334 R4567 R4566
6315 R4529 R4528 6335 R4569 R4568
6316 R4531 R4530 6336 R4571 R4570
6317 R4533 R4532 6337 R4573 R4572
6318 R4535 R4534 6338 R4575 R4574
6319 R4537 R4536 6339 R4577 R4576
6320 R4539 R4538 6340 R4579 R4578
PLC constant screen