PMC_PRFRDSLVPRM | PROFIBUS

Specify the library handle. See "Library handle" for details.

Specify the slave number to read. (0-125)

Pointer to the structure including the slave parameter. This structure is different depending on the version of control software of PROFIBUS-DP(6557 Series).

In case of Version 01 to 07:

Pointer to the IODBSLVPRM structure.
The IODBSLVPRM structure is as follows.

typedef struct {
    short          dis_enb ;
    unsigned short ident_no ;
    unsigned char  slv_flag ;
    unsigned char  slv_type ;
    char           reserve1[12] ;
    unsigned char  slv_stat ;
    unsigned char  wd_fact1 ;
    unsigned char  wd_fact2 ;
    unsigned char  min_tsdr ;
    char           reserve2 ;
    unsigned char  grp_ident ;
    short          user_plen ;
    char           user_pdata[32] ;
    short          cnfg_dlen ;
    char           cnfg_data[126] ;
    short          slv_ulen ;
    char           slv_udata[30] ;
    char           reserve3[8] ;
} IODBSLVPRM ;

In case of Version 09 or later:

Pointer to the IODBSLVPRM2 structure.
The IODBSLVPRM2 structure is as follows.

typedef struct {
    short          dis_enb ;
    unsigned short ident_no ;
    unsigned char  slv_flag ;
    unsigned char  slv_type ;
    char           reserve1[12] ;
    unsigned char  slv_stat ;
    unsigned char  wd_fact1 ;
    unsigned char  wd_fact2 ;
    unsigned char  min_tsdr ;
    char           reserve2 ;
    unsigned char  grp_ident ;
    short          user_plen ;
    char           user_pdata[206] ;
    short          cnfg_dlen ;
    char           cnfg_data[126] ;
    short          slv_ulen ;
    char           slv_udata[30] ;
    char           reserve3[8] ;
} IODBSLVPRM2 ;

dis_enb

Whether to communicate with the DP-Slave of the specified slave number is stored.

0	:	DISABLE	Communication is not done.
1	:	ENABLE	Communication is done.

ident_no

The identification number of DP-Slave is stored.

slv_flag

The slave flag is stored. The meaning of each bit is as follows.

BIT7
	0	:	DP-Slave will not be activated.
	1	:	DP-Slave will be activated.

BIT6
	0	:	New parameter data will not be transferred.
	1	:	New parameter data will be transferred.

* BIT0 to BIT5 are not used.

slv_type

The slave type of the maker specification is stored.

reserve1

not used

slv_stat

The slave status is stored. The meaning of each bit is as follows.

In case of BIT7=ON, BIT6=OFF

The DP-Slave cannot change the parameter from the DP-Master.

In case of BIT7=OFF, BIT6=ON

The DP-Slave can change the parameter from the DP-Master.

BIT5
	0	:	OFF	The Sync control command can not be used.
	1	:	ON	The Sync control command can be used.
BIT4
	0	:	OFF	The Freeze control command can not be used.
	1	:	ON	The Freeze control command can be used.
BIT3
	0	:	OFF	The Watchdog control is not done.
	1	:	ON	The Watchdog control is done.

* BIT0 to BIT2 are not used.

wd_fact1

The coefficient to decide the time of the Watchdog control is stored.

wd_fact2

The coefficient to decide the time of the Watchdog control is stored.

* The Watchdog control time, wd_fact1, and the wd_fact2

The Watchdog control time(msec) = 10 * wd_fact1 * wd_fact2

min_tsdr

The minimum wait time to send the response to DP-Master is stored.

reserve2

not used

grp_ident

The group for the DDLM_Global_Control function is stored.

user_plen

The number of bytes of specific data which is neccesary for the slave parameter set from the maker is stored.

user_pdata

The specific data which is neccesary for the slave parameter set from the maker is stored. The data of the number of bytes returned to above-mentioned user_plen is effective.

cnfg_dlen

The number of bytes of data to specify DI/DO size for the data exchange between DP-Master and DP-Slave is stored.

cnfg_data

The data to specify DI/DO size for the data exchange between DP-Master and DP-Slave is stored. The data of the number of bytes returned to above-mentioned cnfg_dlen is effective.

slv_ulen

The number of bytes of specified data from the maker side to show the characteristic of the DP-Slave is stored.

slv_udata

The specified data from the maker side to show the characteristic of the DP-Slave is stored. The data of the number of bytes returned to above-mentioned slv_ulen is effective.

reserve3

not used