Rockwell Automation 1771-DB BASIC MODULE - Manual (Page 318)

Chapter
Call Routines 69–127 13
13 -60
5. The PLC receives the data and status from the block transfer and
unlatches output image table bit 12 to inform the BASIC module that
data was received.
PLC Processor
BASIC Module
PLC Backplane
Unlatch Output
Image Table Bit 12
6. The BASIC module resets the input image table bit 12 on the same
end of scan cycle in which the block transfer was complete.
PLC Processor
BASIC Module
PLC Backplane
Reset Input Image
Table Bit 12
This call is active until you re-execute it with different input parameters.
Input and Output Arguments
This routine has ten input arguments and one output argument.
Argument Description Page
input 1 type of PLC READ command issued 13 -61
input 2 node address of the remote PLC device (0–255) 13 -61
input 3 file number to be read on PLC remote device (0–255) 13 -61
input 4 file type to be read from the PLC remote device 13 -61
input 5 starting word offset within the file 13 -61
input 6 number of elements to be transferred 13 -62
input 7 message time-out value 13 -62
input 8 BTR buffer and/or internal string 13 -62
input 9 always 1 13 -62
input 10 string number 13 -62
output 1 call status 13 -63
To disable this call, PUSH a zero into the first input parameter. All other
parameters are ignored but you must still PUSH them.