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Appendix 4.3 Examples Of Calculation For Character String Information Parameters - Mitsubishi Electric MELSEC Q Series User Manual

Ethernet/ip network interface module for programmable controller.
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APPENDICES
(4) Total size of character string information parameters used in Nic No. 4
APPX
- 12
Appendix 4 Calculation for the Total Size of Character String Information Parameters

Appendix 4.3 Examples of calculation for character string information parameters

(d) Data Type name, Define name
n = 4
UD
= Data Type name used in "CS_03_001" = 6 characters ("UD_100)
1
UD
= Data Type name used in "CS_03_002" = 6 characters ("UD_200)
2
UD
= Data Type name used in MAR_03_001 = Excluded from calculation
3
because the Data Type name is the same as that of UD
UD
= Data Type name used in UAW_03_001 = Excluded from calculation
4
because the Data Type name is the same as that of UD
m
= 4 (number of registered Defines in UD
1
Define name
= 10 characters ("DEFINE_001")
1
Define name
= 10 characters ("DEFINE_002")
2
Define name
= 10 characters ("DEFINE_003")
3
Define name
= 10 characters ("DEFINE_004")
4
10+1
TOTALDL
=
+3
1
2
m
= 8 (number of registered Defines in UD
2
Define name
= 10 characters ("DEFINE_001")
1
Define name
= 10 characters ("DEFINE_002")
2
Define name
= 10 characters ("DEFINE_003")
3
Define name
= 10 characters ("DEFINE_004")
4
Define name
= 10 characters ("DEFINE_005")
5
Define name
= 10 characters ("DEFINE_006")
6
Define name
= 10 characters ("DEFINE_007")
7
Define name
= 10 characters ("DEFINE_008")
8
10+1
2
TOTALDL
=
2
10+1
2
TOTALDL
and TOTALDL
3
are excluded from calculation.
n
UDi+1
+2+TOTALDLi
2
i=1
6+1
=
+2
+
2
According to (a) to (d), the total size of character string information parameters used
in Nic No. 3 is obtained by: Header + Nic Name + Node Name + Tag name + Data
Type name, Define name + Footer = 9+8+528+536+618+1 =1700 words.
Its total size of character string information parameters is also 1700 words because
the number of characters used in Nic No. 4 is the same as that of Nic No. 3.
10+1
10+1
+
+3
+
2
10+1
10+1
+3
+
+3
+
2
10+1
10+1
+3
+
+3
+
2
are excluded from calculation because UD
4
+512
6+1
+2
+(34+64)
2
.
1
.
2
)
1
10+1
+3
+
+3
2
2
)
2
10+1
+3
+
+3
2
2
10+1
+3
+
+3
2
2
+512=618
=32
=64
and UD
3
4

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