Ransburg AdaptaFlow Node Adapter A10159 - Manual (Page 16)

LN-9217-00.2
AdaptaFlow Node Adapter - Operation
BLOCK TRANSFER I/O BLOCK TRANSFER I/O BLOCK TRANSFER I/O BLOCK TRANSFER I/O BLOCK TRANSFER I/O
There are several words of data that must be sent
and received via block transfers to and from the
flow controller. The block transfer write can contain
three types of information: (1) normal (configuration
word 0, 1 or 2), (2) global (configuration word 3)
and (3) color (configuration word 4). Normal block
transfer write (BTW) data consist of the setpoint
for each of the four channels. When a new flow
controller is installed, the block transfer write
consists of the global data for each channel as well
as the color data for each of the 32 colors. This
data is always updated and stored in the PLC for
current information. The flow data is determined
by the Style/Color/Bell screen or the manual
screens of the operator interface. The flow control
parameter data for a new flow controller comes
from the flow control setup screen on the operator
interface.
The block transfer read also takes on different
forms. In the normal operation, the data block from
the flow controller consists of feedback of actual,
peak, total flow and analog out for each of the four
channels. When requested by the BTW
configuration word, the data block consists of
either the global data or the color table data for that
channel.
The decision to use normal block transfers versus
the data retrieval block transfers is up to the PLC
programmer. The exact sequence of operation is
discussed later. Figure 9 shows the different
block transfers, normal versus retrieval, for both
block transfer read and write exchanges.
Normal Block T Normal Block T Normal Block T Normal Block T Normal Block Transfer ransfer ransfer ransfer ransfer
Write Operational Descriptions Write Operational Descriptions Write Operational Descriptions Write Operational Descriptions Write Operational Descriptions
- Refer to Figure 10 - Refer to Figure 10 - Refer to Figure 10 - Refer to Figure 10 - Refer to Figure 10
The Normal Block Transfer Write is used for
painting when no flow controller programming is
desired.
Configuration Word Configuration Word Configuration Word Configuration Word Configuration Word
Defines what the following words of data are
(Normal, Global or Color) and what data will be
read from the flow controller during the next BTR
instruction.
0 = Normal BTW Data Sent and Normal BTR
Data Read
1 = Normal BTW Data Sent but Color BTR Data
Read
2 = Normal BTW Data Sent but Global BTR
Data Read
3 = Transfer Global Data and Read Global Data
4 = Transfer Color Data and Read Color Data
Channel Number Channel Number Channel Number Channel Number Channel Number
Indicates which channel the requested BTR data
comes from.
Color Number Color Number Color Number Color Number Color Number
Indicates which color the requested BTR data
comes from.
1 3 1 3 1 3 1 3 1 3
Normal BTW Word Normal BTW Word Normal BTW Word Normal BTW Word Normal BTW Word
Configuration
Configuration Configuration Configuration Configuration
Word # Word # Word # Word # Word # Description Description Description Description Description
0
1
2
3
4
5
6
7
8
9
10
Configuration Word (0-2)
Channel No. (1-4)
Color No. (1-32)
Color No. For Channel No. 1
Channel No. 1 Setpoint
Color No. For Channel No. 2
Channel No. 2 Setpoint
Color No. For Channel No. 3
Channel No. 3 Setpoint
Color No. For Channel No. 4
Channel No. 4 Setpoint
Figure 9: Normal BTW Word Configuration Figure 9: Normal BTW Word Configuration Figure 9: Normal BTW Word Configuration Figure 9: Normal BTW Word Configuration Figure 9: Normal BTW Word Configuration
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