Details of T_DIS_OUT_STD-Type IODDT Explicit Exchange Objects

At a Glance

This section presents explicit exchange objects of the T_DIS_OUT_STD-type IODDT applicable to Discrete output modules. It includes the word type objects whose bits have a specific meaning. These objects are described in detail below.

Example of a declaration of a variable:

IODDT_VAR1 of the T_DIS_OUT_STD type.

NOTE: In general, the meaning of the bits is given for bit status 1. In specific cases an explanation is given for each status of the bit.

NOTE: Not all bits are used.

Execution Indicators for an Explicit Exchange: EXCH_STS

The table below presents the meanings of the exchange control bits of the channel EXCH_STS (%MW\2.e\0.m.c.0).

Standard symbol	Type	Access	Meaning	Number
STS_IN_PROGR	BOOL	R	Reading of channel status words in progress.	%MW\2.e\0.m.c.0.0
CMD_IN_PROGR	BOOL	R	Current command parameters exchange in progress.	%MW\2.e\0.m.c.0.1

Explicit Exchange Report: EXCH_RPT

The table below presents the meaning of the exchange report bits EXCH_RPT (%MW\2.e\0.m.c.1).

Standard symbol	Type	Access	Meaning	Number
STS_ERR	BOOL	R	Error in reading status words of the channel (1 = failure).	%MW\2.e\0.m.c.1.0
CMD_ERR	BOOL	R	Error during a command parameter exchange (1 = failure).	%MW\2.e\0.m.c.1.1

Standard Channel Faults, CH_FLT

The table below shows the meaning of the bits of the status word CH_FLT (%MW\2.e\0.m.c.2). Reading is performed by a READ_STS (IODDT_VAR1).

Standard symbol	Type	Access	Meaning	Number
TRIP	BOOL	R	External fault: tripping.	%MW\2.e\0.m.c.2.0
FUSE	BOOL	R	External fault: fuse.	%MW\2.e\0.m.c.2.1
BLK	BOOL	R	Terminal block fault.	%MW\2.e\0.m.c.2.2
EXT_PS_FLT	BOOL	R	External supply fault.	%MW\2.e\0.m.c.2.3
INTERNAL_FLT	BOOL	R	Internal fault: module not operational.	%MW\2.e\0.m.c.2.4
CONF_FLT	BOOL	R	Hardware or software configuration fault.	%MW\2.e\0.m.c.2.5
COM_FLT	BOOL	R	Communication fault with PLC.	%MW\2.e\0.m.c.2.6
SHORT_CIRCUIT	BOOL	R	External fault: short-circuit on a channel.	%MW\2.e\0.m.c.2.8
LINE_FLT	BOOL	R	External fault: line fault.	%MW\2.e\0.m.c.2.9

Status word: CH_CMD

The table below shows the meaning of the bits of the status word CH_CMD (%MW\2.e\0.m.c.3). The command is made by a WRITE_CMD (IODDT_VAR1)

Standard symbol	Type	Access	Meaning	Address
REAC_OUT	BOOL	R/W	Reactivation of tripped outputs (protected outputs).	%MW\2.e\0.m.c.3.0
PS_CTRL_DIS	BOOL	R/W	Inhibition of the external supply control.	%MW\2.e\0.m.c.3.1
PS_CTRL_EN	BOOL	R/W	Validation of the external supply control.	%MW\2.e\0.m.c.3.2

NOTE: This object is specific to output modules with reactivation.