In-rack Input/Output objects
(Original Document)
About us
Introduction
Conversion replaces the PL7 objects by their Control Expert equivalent.
In-rack I/O objects.
The following table describes any correspondence and differences between PL7 and Control Expert objects.
PL7
Control Expert
Status
Syntax
Type of data
Syntax
Type of data
Channel
%CHxy.0
%CH3.2
CHANNEL
%CHr.m.c
%CH0.3.2
IODDT
Modified
Inputs %I
Module or channel fault
%Ixy.i.ERR
%I2.3.ERR
BOOL
%Ir.m.c.ERR
%I0.2.3.ERR
BOOL
Modified
Bit
%Ixy.i.r
%I2.3.1
EBOOL
%Ir.m.c.d
%I0.2.3.1
EBOOL
Modified
%Ixy.i.r[index]
%I2.3.1[index]
EBOOL
%Ir.m.c.d[index]
%I0.2.3.1[index]
EBOOL
%Ixy.i.r:L
%I2.3.1:L
AR_X
%Ir.m.c.d:L
%I0.2.3.1:L
ARRAY OF EBOOL
Word
%IWxy.i.r
%IW2.3.1
WORD
%IWr.m.c.d
%IW0.2.3.1
INT
Modified
Double word
%IDxy.i.r
%ID2.3.1
DWORD
%IDr.m.c.d
%ID0.2.3.1
DINT
Modified
Real
%IFxy.i.r
%IF2.3.1
REAL
%IFr.m.c.d
%IF0.2.3.1
REAL
Modified
Outputs %Q
Bit
%Qxy.i.r
%Q2.3.1
EBOOL
%Qr.m.c.d
%Q0.2.3.1
EBOOL
Modified
%Qxy.i.r[index]
%Q2.3.1[index]
EBOOL
%Qr.m.c.d[index]
%Q0.2.3.1[index]
EBOOL
%Qxy.i.r:L
%Q2.3.1:L
AR_X
%Qr.m.c.d:L
%Q0.2.3.1:L
ARRAY OF EBOOL
Word
%QWxy.i.r
%QW2.3.1
WORD
%QWr.m.c.d
%QW0.2.3.1
INT
Modified
Double word
%QDxy.i.r
%QD2.3.1
DWORD
%QDr.m.c.d
%QD0.2.3.1
DINT
Modified
Real
%QFxy.i.r
%QF2.3.1
REAL
%QFr.m.c.d
%QF0.2.3.1
REAL
Modified
Variables %M
Word
%MWxy.i.r
%MW2.3.1
WORD
%MWr.m.c.d
%MW0.2.3.1
INT
Modified
Double word
%MDxy.i.r
%MD2.3.1
DWORD
%MDr.m.c.d
%MD0.2.3.1
DINT
Modified
Real
%MFxy.i.r
%MF2.3.1
REAL
%MFr.m.c.d
%MF0.2.3.1
REAL
Modified
Constants %K
Word
%KWxy.i.r
%KW2.3.1
WORD
%KWr.m.c.d
%KW0.2.3.1
INT
Modified
Double word
%KDxy.i.r
%KD2.3.1
DWORD
%KDr.m.c.d
%KD0.2.3.1
DINT
Modified
Real
%KFxy.i.r
%KF2.3.1
REAL
%KFr.m.c.d
%KF0.2.3.1
REAL
Modified
Character string
%KBxy.i.r:L
%KF2.3.4:L
STRING
(1)
STRING
Modified
Legend:
(1)
The %KBxy.i.r:L and %KF2.3.4:L character strings are replaced by a single character string.
PL7
Control Expert
x
r
Rack.
y
m
Position in the rack (module).
i
c
Channel number.
r
d
Rank.
Optional if equal to zero.