Rockwell Automation 1771-IS 5V DC INPUT MOD - Manual (Page 37)

Programming and Operation
Chapter 3
3-18
Figure 3.9
Example Block Transfer Programming, PLC-3
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17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00
RQ EN DN ER LE SD SE RQ EN DN ER LE SD SE
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SL Mod. Group Rack Number
Data Table Section
File Number
Word Number
Write Data File Length
Data Table Section
File Number
Word Number
Read Data File Length
(Decimal 7)
(002)
(0012)
(3)
0010
0011
0012
0013
0014
0015
0016
0017
0018
0019
Bit Control Word (WB001:0010)
I/O Module Address
Data File Address (Write)
Data File Address (Read)
Data Table Maps
a) Control File (FB001:0010)
b) Data File (FD002:0012)
17 10 07 00
0012
0013
Diagnostics
9
8 0014
7
6
5
4
1
2
Bit Legend
RQ = Request
EN = Enable
DN = Done
ER = Error LE = Latched Enable
SD = Scanner Done
SE = Scanner Error
SL = Slot Number
Prefix Legend
F = File Address
W = Word Address
B = Binary File
D = Decimal FIle
WB001:0010
15
EN
BTR
BLOCK XFER READ
RACK:
GROUP:
MODULE:
DATA:
001
2
1=HIGH
FD002:0012
DN
LENGTH =
CNTL: 3
FB001:0010
ER
CNTL
CNTL
CNTL
12
15
13
10374
Data File Addr
(FD002:0012
Read Bits Write Bits