Rockwell Automation 1746-BAS-T SLC 500 Basic Basic-T Modules - Manual (Page 66)

Publication 1746-UM004B-EN-P - December 2005
4-18 Programming Overview
Figure 4.5 Data Flow Between the SLC processor and Port DH485 of the Module
In addition, the commands in the following table provide status of the
data transfer between the SLC processor and port DH485 of the
module.
For more information regarding the use of these commands, refer to
the BASIC Language Reference Manual, publication 1747-RM001.
CALL 91 Transfers words 0...39 of the module output buffer to a remote DH485 data
file.
CALL 92 Transfers the data from a remote DH485 interface file to words 0...39 of the
module input buffer.
CALL 93 Transfers words 0...39 of the module output buffer to a remote DH485
interface file.
CALL 118 Allows unsolicited writes from a remote SLC or PLC node.
Command Purpose
SLC Processor
256 bytes
256 bytes
PORT DH485
PRINT
CALL 28
CALL 27
CALL 118
INPUT
CALL 14/15
CALL 24/25
CALL 90/92
CALL 84
CALL 91/93
CALL 85
256 bytes
256 bytes
COMMON
INTERFACE INPUT
FILE
COMMON
INTERFACE
OUTPUT FILE
ASCII OUTPUT
QUEUE
BASIC INPUT
BUFFER
BASIC
OUTPUT
BUFFER
ASCII INPUT
QUEUE
Command Purpose
MODE Sets the port parameters of PRT1, PRT2, and DH485.
CALL 86 Checks the remote write status of the DH485 common interface file.
CALL 87 Checks the remote read status of the DH485 common interface file.