Details of the Implicit Exchange Objects of the T_COM_UTW_M Type IODDT for PCMCIA Cards
(Original Document)
About us
At a Glance
The following tables present the implicit exchange objects of the IODDT of the T_COM_UTW_M type which apply to a Uni-Telway master communication with PCMCIA cards.
Error Bit
The following table presents the meaning of the error bit CH_ERROR (%Ir.m.c.ERR).
Standard Symbol
Type
Access
Meaning
Address
CH_ERROR
EBOOL
R
Communication channel error bit
%Ir.m.c.ERR
Signal Objects on Input
The table below shows the meaning of the bits of the INPUT_SIGNALS word (%IWr.m.c.0).
Standard Symbol
Type
Access
Meaning
Address
DCD
BOOL
R
Data Carrier Detection signal
%IWr.m.c.0.0
RI
BOOL
R
Ring indicator signal
%IWr.m.c.0.1
CTS
BOOL
R
Ready to send signal
%IWr.m.c.0.2
DSR
BOOL
R
Data ready signal
%IWr.m.c.0.3
General Slave Status Object
The following table presents the meaning of the bit of the SLAVES_ERR word (%IWr.m.c.1).
Standard Symbol
Type
Access
Meaning
Address
SLAVES_ERR
EBOOL
R
=1 if at least one slave does not respond
%IWr.m.c.1.0
Status Object for Event Data
The following table presents the meaning of the bits of the EVT_STS_0_15 word (%IWr.m.c.2). For slaves 0 to 15:
Standard Symbol
Type
Access
Meaning
Address
EVT_STS_0
EBOOL
R
=1 slave 0 has transmitted data
%IWr.m.c.2.0
EVT_STS_1
EBOOL
R
=1 slave 1 has transmitted data
%IWr.m.c.2.1
EVT_STS_2
EBOOL
R
=1 slave 2 has transmitted data
%IWr.m.c.2.2
EVT_STS_3
EBOOL
R
=1 slave 3 has transmitted data
%IWr.m.c.2.3
EVT_STS_n
EBOOL
R
=1 slave n has transmitted data
%IWr.m.c.2.n
EVT_STS_15
EBOOL
R
=1 slave 15 has transmitted data
%IWr.m.c.2.15
Status Object for Event Data
The following table presents the meaning of the bits of the EVT_STS_16_31 word (%IWr.m.c.2). For slaves 16 to 31:
Standard Symbol
Type
Access
Meaning
Address
EVT_STS_16
EBOOL
R
=1 slave 16 has transmitted data
%IWr.m.c.3.0
EVT_STS_17
EBOOL
R
=1 slave 17 has transmitted data
%IWr.m.c.3.1
EVT_STS_18
EBOOL
R
=1 slave 18 has transmitted data
%IWr.m.c.3.2
EVT_STS_19
EBOOL
R
=1 slave 19 has transmitted data
%IWr.m.c.3.3
EVT_STS_n
EBOOL
R
=1 slave n has transmitted data
%IWr.m.c.3.i
EVT_STS_31
EBOOL
R
=1 slave 31 has transmitted data
%IWr.m.c.3.15