
Chapter 3
MMS and Your Coprocessor
3-8
Signed Word (N) Mappings
The following table contains samples of mapping signed word data types.
Address:
MMS Data Type:
N7:0
INTEGER (16 bits)
N7:0,8
ARRAY of 8 INTEGERS
N7:0/0
BOOLEAN
N7:0/3,5
BITSTRING (5 bits)
See the section titled Additional Information on Using Data Types, later in
this chapter, and Appendix A of this manual for more information on
mapping MMS data types onto PLC–5 data files.
Floating Point (F) Mappings
The following table contains samples of mapping floating point data types.
Address:
MMS Data Type:
F8:0
FLOATING POINT
F8:0,50
ARRAY of 50 FLOATING POINTS
See the section titled Additional Information on Using Data Types, later in
this chapter, and Appendix A of this manual for more information on
mapping MMS data types onto PLC–5 data files.
Timer (T) Mappings
The following is the format of a timer structure as viewed by MMS.
BOOLEAN
DN
BOOLEAN
TT
BOOLEAN
EN
INTEGER
PRE (16 bits)
INTEGER
ACC (16 bits)
Important: Refer to your PLC–5 Programming Reference Manual for
descriptions of the individual fields in data type structures.
The following table contains samples of mapping timer data types.
Содержание PLC-5 MAP/OSI
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