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[N/B] Parameters for Addressing PLC or Block Tags |
N1 or B1 |
Number of a station |
N2 or B2 |
Number of a CPU from A series (usually 255 for FX series) |
N3 or B3 |
Type of variable. For more information, please check the next table |
N4 or B4 |
Initial address of variables |
Size |
Number of data points to read (Bit or Word) |
NOTES |
•By default, Word-type variables are interpreted as unsigned values. To interpret these values as signed (negative values), add the value 1000 to the N3 or B3 parameter. For example, the value 17 indicates a Special Register D variable treated as unsigned and the value 1017 indicates a Special Register D variable treated as signed. •Some variables are addressed as decimal and some are addressed as hexadecimal. Please do not mismatch these two types when configuring these variables. |
Variable |
N3 or B3 |
Data Type |
|---|---|---|
Input X |
0 (zero) |
Bit |
Output Y |
1 (one) |
Bit |
Internal Relay M |
2 (two) |
Bit |
Latch Relay L |
3 (three) |
Bit |
Step Relay S |
4 (four) |
Bit |
Link Relay B |
5 (five) |
Bit |
Annunciator F |
6 (six) |
Bit |
Special Relay M |
7 (seven) |
Bit |
Timer (contact) T |
8 (eight) |
Bit |
Timer (coil) T |
9 (nine) |
Bit |
Counter (contact) C |
10 |
Bit |
Counter (coil) C |
11 |
Bit |
Timer (present value) T |
12 |
Word |
Counter (present value) C |
13 |
Word |
Data Register D |
14 |
Word |
Link Register W |
15 |
Word |
File Register R |
16 |
Word |
Special Register D |
17 |
Word |
ANA Input X |
18 |
Bit |
ANA Output Y |
19 |
Bit |
ANA Internal Relay M |
20 |
Bit |
ANA Latch Relay L |
21 |
Bit |
ANA Step Relay S |
22 |
Bit |
ANA Link Relay B |
23 |
Bit |
ANA Annunciator F |
24 |
Bit |
ANA Special Relay M |
25 |
Bit |
ANA Timer (contact) T |
26 |
Bit |
ANA Timer (coil) T |
27 |
Bit |
ANA Counter (contact) C |
28 |
Bit |
ANA Counter (coil) C |
29 |
Bit |
ANA Timer (present value) T |
30 |
Word |
ANA Counter (present value) C |
31 |
Word |
ANA Data Register D |
32 |
Word |
ANA Link Register W |
33 |
Word |
ANA File Register R |
34 |
Word |
ANA Special Register D |
35 |
Word |