32 PROSEC T3H
2. Expanded Functions
Regarding the network assignment, the W register is divided into 32 blocks.
(64 words per one block)
The S20 has 1024 words of scan memory. In case of the T3H, even if two S20’s are
used, the scan memory of each S20 can be fully mapped to the W register. Channel
1 S20 is allocated to the blocks 1 to 16, and channel 2 S20 is allocated to the blocks
17 to 32.
The allocation example below shows the case of all the blocks are set as “LINK”.
T3H’s link register Block Setting CH1 S20 CH2 S20
W CH1 CH2 scan memory scan memory
W0000 - W0063 1 LINK 0000 - 0063
W0064 - W0127 2 LINK 0064 - 0127
W0128 - W0191 3 LINK 0128 - 0191
W0192 - W0255 4 LINK 0192 - 0255
W0256 - W0319 5 LINK 0256 - 0319
W0320 - W0383 6 LINK 0320 - 0383
W0384 - W0447 7 LINK 0384 - 0447
W0448 - W0511 8 LINK 0448 - 0511 -
W0512 - W0575 9 LINK 0512 - 0575
W0576 - W0639 10 LINK 0576 - 0639
W0640 - W0703 11 LINK 0640 - 0703
W0704 - W0767 12 LINK 0704 - 0767
W0768 - W0831 13 LINK 0768 - 0831
W0832 - W0895 14 LINK 0832 - 0895
W0896 - W0959 15 LINK 0896 - 0959
W0960 - W1023 16 LINK 0960 - 1023
W1024 - W1087 17 LINK 0000 - 0063
W1088 - W1151 18 LINK 0064 - 0127
W1152 - W1215 19 LINK 0128 - 0191
W1216 - W1279 20 LINK 0192 - 0255
W1280 - W1343 21 LINK 0256 - 0319
W1344 - W1407 22 LINK 0320 - 0383
W1408 - W1471 23 LINK 0384 - 0447
W1472 - W1535 24 LINK - 0448 - 0511
W1536 - W1599 25 LINK 0512 - 0575
W1600 - W1663 26 LINK 0576 - 0639
W1664 - W1727 27 LINK 0640 - 0703
W1728 - W1791 28 LINK 0704 - 0767
W1792 - W1855 29 LINK 0768 - 0831
W1856 - W1919 30 LINK 0832 - 0895
W1920 - W1983 31 LINK 0896 - 0959
W1984 - W2047 32 LINK 0960 - 1023