User Communication (SND, RCV)

Exclusive Commands for Computer Communication,

This is used when the communication frame defined in a user program is used to send and receive data in a program.

SND

This is used to send data as much as the length of the data requested from a computer link module.

CMD

Usable Device

M

X

Y

K

L

F

T

C

S

D

@D

Integer

Base

O

Chan

O

Slot

O

Addr

O

Leng

O

Result

O

COMMAND	Description
Base-Chan-Slot	Base: The number of the base where a computer link module is mounted is indicated. In case of expansion base, the number (1~16) of a corresponding base is indicated. In case of local one, the number is ‘0’. Channel Mode: Ch 1(RS232:0) and Ch 2(RS422:1). Slot No.: The number of the slot where a computer link module is mounted [Ex.] In case of local base, Slot 2, Channel 1(RS232) -> h0002 : RS-232C [Ex.] In case of expansion base (1), Slot 1, Channel 2(RS422) -> h0111 : RS-422
Addr	Address of the data sent
Leng	Length of the data sent (BYTE), Decimal figure, Max. 500BYTE
Result	The address where the result of sending is noticed is assigned. (X,Y,M,L,K,T,C,D,@D,Z) Result Format : · Bit 0 : When sending completed, 1Scan ON. When failed, always ON. · Bit 1 : When sending failed, always ON. · Bit 2-7 : OFF · Bit 8-F : Error Code (0=No Error)

FORMAT

RCV

This is used to store data as much as the length of the data requested from a computer link module.

CMD