9 communication tasks, Reading plots from the communication module, Communication tasks -278 – Delta RMC101 User Manual
Page 528: Reading plots from the communication module -278, 1 reading plots from the communication module
RMC100 and RMCWin User Manual
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20
50
Address of axis 5 Command
Position
21
51
Address of axis 5 Target Position
22
52
Address of axis 5 Actual Position
23
54
Address of axis 5 Status Word
24
60
Address of axis 6 Command
Position
25
61
Address of axis 6 Target Position
26
62
Address of axis 6 Actual Position
27
64
Address of axis 6 Status Word
28
70
Address of axis 7 Command
Position
29
71
Address of axis 7 Target Position
30
72
Address of axis 7 Actual Position
31
74
Address of axis 7 Status Word
5.9 Communication Tasks
5.9.1 Reading Plots from the Communication Module
Overview
To load all plots on eight axes, the user would need to reserve 49,152 PLC registers. A single-
axis full plot requires 6,144 PLC registers. A plot of a single piece of information on one axis
requires 1,024 PLC registers.
The chart below can be used to determine the start of a given plot. n represents the axis number
(0-7). Remember that there are 1024 registers per plot, so for non-Allen-Bradley addressing, the
1024 sequential registers hold each sample, but for Allen-Bradley addressing, only 256 registers
fit in a register file. Therefore, the first 256 samples are in the register file calculated by the table
below as elements 0-255. The next 256 samples are in the next register file, and so on.
Information
for Axis n
MB/TI505
Address
PROFIBUS
Address
AB/SoftPLC
Address
Siemens S7
Address
Target
Position†
16385 +
6144*n
16384 +
6144*n
N(64+24*n):0
DB(208+6*n).DBW0
Actual
Position†
17409 +
6144*n
17408 +
6144*n
N(68+24*n):0
DB(209+6*n).DBW0