Rockwell Automation 1771-OFE/B Analog Output Module User Manual User Manual
Page 42
0
1
0
0
Channel 3 Minimum Scaling Factor Polarity
Set (1) = Negative
Reset (0) = Positive
Binary
BCD
12892
4-6
Publication 1771Ć6.5.30 - November 1998
Figure 4.3
Binary Configuration Word Represented in BCD
Word/Dec. Bit
15
14
13
12
11
10
09
08
07
06
05
04
03
02
01
00
Word/Octal Bit
17
16
15
14
13
12
11
10
07
06
05
04
03
02
01
00
Word 5
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
Block transfer operation with the PLC-3 processor uses one binary
file in a data table section for module location and other related data.
This is the block transfer control file. The block transfer data file
stores data that you want transferred to your module (during block
transfer write) or from your module (block transfer read). The
address of the block transfer data file is stored in the block transfer
control file. A sample program segment is shown in Figure 4.4 and
described in the following paragraphs.
The industrial terminal prompts you to create a control file when
either block transfer instruction is entered. The same block transfer
control file is used for both read and write instructions for your
module.
PLC-3 Example Program
Module Location
Rack 1, Module Group 0, Slot 1
Block Transfer Control File
FB1:0
BTW File (Configuration file)
FB2:1
BTR File (Buffer file)
FB3:1
Output Data File
FB4:1
Storage Bit
B0/0
BTW Done Bit
B1:0/05
BTR Done Bit
B1:0/15
Module Configuration
1771ĆOFE1 (Voltage Version)
Voltage Range
1 to 5V
Data Format
BCD
Scaling Parameters
Channels 1 and 2 = No scaling
Channel 3 = Ć20 to 275
Channel 4 = 100 to 500
Block Transfer
Programming Ć PLCĆ3
Family Processors Only