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8-3
8
8-2 Memory addresses for computer links
- Data memory byte addresses in the computer link must be entered the same way a data link address
is entered.
- The relay numbers and TMR/CNT numbers are the same for the ME-NET. However the TMR/CNT
contact points correspond to the even addresses from 16000 to 17777(8).
- Program addresses correspond to addresses of file (SEG)8.
For details about the detailed addresses to use on the host computer, see the instruction manual for
the host computer.
(1) Memory address map (against JW20/JW20H)
- Relay addresses 07300 to 07377(8) and 15760 to 15767(8) in the JW20/JW20H are special
address ranges for relays.
- Available addresses vary with PC model on which the JW-21MN is installed and its capacity.
For details, see an instruction manual for each PC.
JW20/20H
address
(8)
ME-NET address
(8)
Capacity Remarks
I/O relay 00000 to 03777 SEG0 00000.0 to 00377.7 2048 points
Bit
address
Auxiliary relay/JW20H 04000 to 06777 SEG0 00400.0 to 00677.7 1536 points
Latched relay 07000 to 07777 SEG0 00700.0 to 00777.7 512 points
General-purpose relay 10000 to 15777 SEG0 01000.0 to 01577.7 3072 points
TMR/CNT contact point T-C000 to T-C777
Even addresses of SEG0
01600.0 to 01777.7
512 points
I/O relay
0000 to 0377
SEG0 00000 to 00377 256 bytes
Byte
address
Auxiliary relay
0400 to 0677
SEG0 00400 to 00677 192 bytes
Latched relay
0700 to 0777
SEG0 00700 to 00777 64 bytes
General-purpose relay
00 to 77
SEG0 01000 to 01577 384 bytes
TMR/CNT current value b0000 to b1777 SEG0 02000 to 03777 1024 bytes
Register
09000 to 09777 SEG0 04000 to 04777 512 bytes
19000 to 19777 SEG0 05000 to 05777 512 bytes
29000 to 29777 SEG0 06000 to 06777 512 bytes
39000 to 39777 SEG0 07000 to 07777 512 bytes
49000 to 49777 SEG0 10000 to 10777 512 bytes
59000 to 59777 SEG0 11000 to 11777 512 bytes
69000 to 69777 SEG0 12000 to 12777 512 bytes
79000 to 79777 SEG0 13000 to 13777 512 bytes
89000 to 89777 SEG0 14000 to 14777 512 bytes
99000 to 99777 SEG0 15000 to 15777 512 bytes
E0000 to E1777 SEG0 16000 to 17777 1024 bytes
TMR/CNT number 000 to 777 0000 to 0777 512 pieces -----
Program
address
JW-21CU/22CU 000000 to 006777 SEG8 000000 to 006777 3584 step -----
JW-22CU 000000 to 016777 SEG8 000000 to 016777 7680 step -----