Bradley Smoker PLC-5 user manual Enable the BTW, Otl

Programming Considerations 13-9

To ensure that the received BTR data table file has been properly updated before you use the data, do the following:

1.Enable the input conditions of the BTR rung.

2.Wait for the BTR done bit to be set.

3.Allow time for housekeeping to force and send the changed data from the block-transfer data buffer to the block-transfer data table file.

BTR.DN detected

BTR data valid

OTL

BT10:0

BTR DN detected

OTE)

DN

If BTR data is not valid

BTR data valid

/

BTR

Rack

01

Group

4

Module

0

Control Block

BT10:0

Data File

N9:0

Length

6

Continuous

N

BTR data valid

any

logic

accessing

the BTR data or

copy data to

another file

BTR data valid

OTU)

[END OF FILE]

After the BTR done bit is set, the valid data in the BT data buffer

41401

is copied to the BTR data table file during housekeeping.

To ensure that the intended BTW data table file was properly transferred, do the following:

1.Change the data in the block-transfer output data table.

2.Allow time for housekeeping to force and send the changed data from the block-transfer output data table file to the block-transfer data buffer.

3.Enable the BTW

Publication 1785-UM012D-EN-P - July 2005