Detailed Description of T_ANA_IN_T_BMX-type IODDT Objects

At a Glance

The following tables describe the T_ANA_IN_T_BMX-type IODDT objects applicable to BMX ART 0414/0814 analog input modules.

Input Measurement

The analog input measurement object is as follows:

Standard symbol	Type	Access	Meaning	Address
VALUE	INT	R	Analog input measurement.	%IWr.m.c.0

%Ir.m.c.ERR error bit

The %Ir.m.c.ERR error bit is as follows:

Standard symbol	Type	Access	Meaning	Address
CH_ERROR	BOOL	R	Error bit for analog channel.	%Ir.m.c.ERR

MEASURE_STS Measurement Status Word

The various meanings of the MEASURE_STS (%IWr.m.c.1) measurement status word bits are as follows:

Standard symbol	Type	Access	Meaning	Address
CH_ALIGNED	BOOL	R	Aligned channel.	%IWr.m.c.1.0
CH_FORCED	BOOL	R	Forced channel.	%IWr.m.c.1.1
LOWER_LIMIT	BOOL	R	Measurement within lower tolerance area.	%IWr.m.c.1.5
UPPER_LIMIT	BOOL	R	Measurement within upper tolerance area.	%IWr.m.c.1.6
INT_OFFSET_ERROR	BOOL	R	Internal offset error.	%IWr.m.c.1.8
INT_REF_ERROR	BOOL	R	Internal reference error.	%IWr.m.c.1.10
POWER_SUP_ERROR	BOOL	R	Not used.	%IWr.m.c.1.11
SPI_COM_ERROR	BOOL	R	SPI communication error.	%IWr.m.c.1.12

Cold Junction Compensation

The value of the cold junction compensation is as follows:

Standard symbol	Type	Access	Meaning	Address
CJC_VALUE	INT	R	Cold junction compensation value (1/10°C).	%IWr.m.c.2

Explicit Exchange Execution Flag: EXCH_STS

The meaning of the exchange control bits of the channel EXCH_STS (%MWr.m.c.0) is as follows:

Standard symbol	Type	Access	Meaning	Address
STS_IN_PROGR	BOOL	R	Read channel status words in progress.	%MWr.m.c.0.0
CMD_IN_PROGR	BOOL	R	Command parameter exchange in progress.	%MWr.m.c.0.1
ADJ_IN_PROGR	BOOL	R	Adjustment parameter exchange in progress.	%MWr.m.c.0.2

Explicit Exchange Report: EXCH_RPT

The meaning of the EXCH_RPT (%MWr.m.c.1) report bits is as follows:

Standard symbol	Type	Access	Meaning	Address
STS_ERR	BOOL	R	Read error for channel status words.	%MWr.m.c.1.0
CMD_ERR	BOOL	R	Error during command parameter exchange.	%MWr.m.c.1.1
ADJ_ERR	BOOL	R	Error while exchanging adjustment parameters.	%MWr.m.c.1.2
RECONF_ERR	BOOL	R	Error while reconfiguring the channel.	%MWr.m.c.1.15

Standard Channel Status: CH_FLT

The following table explains the meaning of the CH_FLT (%MWr.m.c.2) status word bits. Reading is performed by a READ_STS (IODDT_VAR1).

Standard symbol	Type	Access	Meaning	Address
SENSOR_FLT	BOOL	R	Sensor connection error.	%MWr.m.c.2.0
RANGE_FLT	BOOL	R	Range under/overflow error.	%MWr.m.c.2.1
CH_ERR_RPT	BOOL	R	Channel error report.	%MWr.m.c.2.2
INTERNAL_FLT	BOOL	R	Inoperative channel.	%MWr.m.c.2.4
CONF_FLT	BOOL	R	Different hardware and software configurations.	%MWr.m.c.2.5
COM_FLT	BOOL	R	Problem communicating with the PLC.	%MWr.m.c.2.6
APPLI_FLT	BOOL	R	Application error (adjustment or configuration error).	%MWr.m.c.2.7
NOT_READY	BOOL	R	Channel not ready.	%MWr.m.c.3.0
COLD_JUNCTION_FLT	BOOL	R	Cold junction compensation error.	%MWr.m.c.3.1
CALIB_FLT	BOOL	R	Calibration error.	%MWr.m.c.3.2
INT_OFFS_FLT	BOOL	R	Internal calibration offset error.	%MWr.m.c.3.3
INT_REF_FLT	BOOL	R	Internal calibration reference error.	%MWr.m.c.3.4
INT_SPI_PS_FLT	BOOL	R	Internal serial link or power supply error.	%MWr.m.c.3.5
RANGE_UNF	BOOL	R	Range underflow.	%MWr.m.c.3.6
RANGE_OVF	BOOL	R	Range overflow.	%MWr.m.c.3.7

Command Controls

The following table explains the meaning of the COMMMAND_ORDER (%MWr.m.c.4) status word bit. Reading is performed by a READ_STS:

Standard symbol	Type	Access	Meaning	Address
FORCING__UNFORCING_ORDER	BOOL	R/W	Forcing/unforcing command.	%MWr.m.c.4.13

Parameters

The table below presents the meaning of the %MWr.m.c.5, %MWr.m.c.8 and %MWr.m.c.9 status words. Queries used are those associated with parameters (READ_PARAM, WRITE_PARAM).

Standard symbol	Type	Access	Meaning	Address
CMD_FORCING_VALUE	INT	R/W	Forcing value to be applied.	%MWr.m.c.5
FILTER_COEFF	INT	R/W	Value of filter coefficient.	%MWr.m.c.8
ALIGNMENT_OFFSET	INT	R/W	Alignment offset value. NOTE: Offset=Target value - Mesured value, for instance, if you want to see a value of 3000 when the measured value is 2400 you have to set an offset of 600.	%MWr.m.c.9

NOTE: In order to force a channel, you have to use the WRITE_CMD (%MWr.m.c.5) instruction and set the %MWr.m.c.4.13 bit to 1.

NOTE: To unforce a channel and use it normally, you have to set the %MWr.m.c.4.13 bit to 0.