PMC_PRFRDBUSPRM | PROFIBUS

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

Pointer to the IODBBUSPRM structure including the bus parameter. The IODBBUSPRM structure is as follows.

typedef struct {
    char           fdl_add ;
    char           baudrate ;
    unsigned short tsl ;
    unsigned short min_tsdr ;
    unsigned short max_tsdr ;
    unsigned char  tqui ;
    unsigned char  tset ;
    long           ttr ;
    char           gap ;
    char           hsa ;
    char           max_retry ;
    unsigned char  bp_flag ;
    unsigned short min_slv_int ;
    unsigned short poll_tout ;
    unsigned short data_cntl ;
    char           reserve1[6] ;
    char           cls2_name[32] ;
    short          user_dlen ;
    char           user_data[62] ;
    char           reserve2[96] ;
} IODBBUSPRM ;

fdl_add

Station number of DP-Master is stored.

baudrate

Code number of baudrate is stored.

0	:	9.6Kbps	1	:	19.2Kbps	2	:	93.75Kbps
3	:	187.5Kbps	4	:	500Kbps	6	:	1.5Mbps
7	:	3Mbps	8	:	6Mbps	9	:	12Mbps

tsl

The maximum time that the initiator waits forthe complete receipt of the first frame character of the immediate acknowledgement or response, after transmitting a token frame is stored.

min_tsdr

Minimum progress time from the final bit of the transmitting or receiving data to the top bit of the next transmitting or receiving data is stored.

max_tsdr

Maximum progress time from the final bit of the transmitting or receiving data to the top bit of the next transmitting or receiving data is stored.

tqui

After data were transmitted, the waiting time until the receiver is moved is stored.

tset

The time after an event occurs until an action is carried out is stored.

ttr

The anticipated time for one token to make a round on the PROFIBUS is stored.

gap

The number of the token making the rounds between the GAP maintenance cycle is stored.

hsa

The maximum node number set on PROFIBUS is stored.

max_retry

The maximum number of retries is stored.

bp_flag

The meaning of each bit is as follows.

BIT7

0	:	The User-Interface will remain in the operation mode in the case of an error.
1	:	The operation mode will change from Operate to Clear in the case of an error.

* BIT0 to BIT6 are not used.

min_slv_int

Minimum time between two slave poll cycles is stored.

poll_tout

In the case of master-master communication, the maximum waiting time to obtaining the response after request is sent is stored.

data_cntl

The time during which the Data Transfer List will be updated at least once and will be made available to the user is stored.

reserve1

not used

cls2_name

not used

user_dlen

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

user_data

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

reserve2

not used