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4-5
I/O Allocation
Section 4-2
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/O
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4-2-4 Allocation Data Size (IN Data Size and OUT Data Size)
4-2-5 Allocation Settings
The I/O allocation settings are listed in the following table.
Setting range Unit Default
2byte: 2 bytes
4byte: 4 bytes
Bytes 2 bytes
Allocated
to IN
Area
Allocated
to OUT
Area
Allocation number
(2-bytes decimal)
Item Attribute
Channel
1
Channel
2
Channel
3
Channel
4
No Yes
−
1 --- --- --- Output Enable Bits (Always 2 bytes) ---
Yes Yes 0 --- --- --- Not used. ---
No Yes 1 --- --- --- Operation command (Always 2 bytes) ---
Yes No 2 --- --- --- General status (Always 2 bytes) ---
Yes No 3 319 635 951 PV ch
Yes No 4 320 636 952 Internal SP ch
Yes No 5 321 637 953 Bank No. monitor ch
Yes No 6 322 638 954 PID set No. monitor ch
Yes No 7 323 639 955 Status (Always 4 bytes) ch
Yes Yes 8 324 640 956 Manual MV ch
Yes Yes 9 325 641 957 SP ch
Yes No 10 326 642 958 Remote SP monitor ch
Yes No 11 327 643 959 Set point during SP ramp ch
Yes No 13 329 645 961 MV monitor (heating) ch
Yes No 14 330 646 962 MV monitor (cooling) ch
Yes No 15 331 647 963 Valve opening monitor ch
Yes Yes 16 332 648 964 Cooling coefficient ch
Yes Yes 17 333 649 965 (Reserved) ch
Yes Yes 18 334 650 966 (Reserved) ch
Yes Yes 19 335 651 967 (Reserved) ch
Yes Yes 20 336 652 968 Dead band ch
Yes Yes 21 337 653 969 Manual reset value ch
Yes Yes 22 338 654 970 Hysteresis (heating) ch
Yes Yes 23 339 655 971 Hysteresis (cooling) ch
Yes Yes 24 340 656 972 Control period (heating) ch
Yes Yes 25 341 657 973 Control period (cooling) ch
Yes Yes 26 342 658 974 Position proportional dead band ch
Yes Yes 27 343 659 975 Open/close hysteresis ch
Yes Yes 28 344 660 976 SP ramp time unit ch
Yes Yes 29 345 661 977 SP ramp rise value ch
Yes Yes 30 346 662 978 SP ramp fall value ch
Yes Yes 31 347 663 979 MV at stop (Normal/heating or cooling) ch
Yes Yes 32 348 664 980 MV at stop (position proportional) ch
Yes Yes 33 349 665 981 MV at PV error (normal/heating or cooling) ch
Yes Yes 34 350 666 982 MV at PV error (position proportional) ch
Yes Yes 35 351 667 983 MV change rate limit (heating) ch
Yes Yes 36 352 668 984 MV change rate limit (cooling) ch