Rockwell Automation 1771-DB BASIC MODULE - Manual (Page 93)

Chapter
Using BASIC Module Statements 7
7 -3
PRT2 Port
Statement Page
MODE 11 -20
PRINT# 11 -29
GET# 11 -12
INPL# 11 -16
INPS# 11 -16
INPUT# 11 -17
EOF# 9 -17
LIST# 10 -9
CALL 30 PRT2 port support parameter set 12 -20
CALL 31 display PRT2 port parameters 12 -21
CALL 35 retrieve numeric input character from PRT2 port 12 -34
CALL 36 get number of characters in PRT2 port buffers 12 -35
CALL 37 clear PRT2 port buffers 12 -35
CALL 97 enable PRT2 DTR 13 -33
CALL 98 disable PRT2 DTR 13 -34
CALL 99 reset print head pointer 13 -34
CALL 110 print the PRT2 port transmit buffer and pointer 13 -45
CALL 111 print the PRT2 receive buffer and pointer 13 -46
CALL 119 reset the PRT2 port to default settings 13 -56
The BASIC module communicates with the PLC processor using
block-transfer communications. The PLC processor sends variable length
blocks of data to the module. You can transfer a maximum of 64 words in
and 64 words out per scan. The module responds with the requested block
length of data. The module has an auxiliary processor dedicated to
servicing of the block-transfers to and from the PLC processor. Use these
support routines to provide the communications link between the PLC
processor and the BASIC processor. See Chapter 5 for more information
on block-transfers.
Statement Page
CALL 2 timed-block-transfer-read buffer 12 -2
CALL 3 timed-block-transfer-write buffer 12 -3
CALL 4 set block-transfer-write length 12 -4
CALL 5 set block-transfer-read length 12 -4
CALL 6 block-transfer-write buffer 12 -5
CALL 7 block-transfer-read buffer 12 -5
CALL 120 clear BASIC module input and output buffers 13 -57
Block-Transfer Support
Calls
Chapter