Rockwell Automation 1746-BTM Barrel Temperature Control Module User Manual - Manual (Page 15)

Publication 1746-UM010B-EN-P - April 2001
Getting Started 1-3
Figure 1.2 TPO timing diagram
The TPO duty cycle (Y) must be considerable shorter in time than
the system dead time. For additional information, Refer to Autotune
a Loop on page 5-2.
The following memory map shows you how the SLC processor’s
output and input image tables are defined for the module. See Table
9.A: BTM201.rss N7 Data Table on page 9-2.
TPO bit
On
Off
X
Y
CV% = (40%)
X = on time (2.0 sec)
Y = TPO period (5.00 sec)
data in parenthesis refers to
sample program values.
Bit 15 Bit 0 Address
Loop 1 configuration data word 0 O:e.0
Loop 2 configuration data word 1 O:e.1
Loop 3 configuration data word 2 O:e.2
Loop 4 configuration data word 3 O:e.3
Loop 1 run setpoint value word 4 O:e.4
Loop 2 run setpoint value word 5 O:e.5
Loop 3 run setpoint value word 6 O:e.6
Loop 4 run setpoint value word 7 O:e.7
Loop 1 manual output value word 8 O:e.8
Loop 2 manual output value word 9 O:e.9
Loop 3 manual output value word 10 O:e.10
Loop 4 manual output value word 11 O:e.11
miscellaneous control bits word 12 O:e.12
not used word 13 O:e.13
not used word 14 O:e.14
not used word 15 O:e.15
Loop 1 temperature word 0 I:e.0
Loop 2 temperature word 1 I:e.1
Loop 3 temperature word 2 I:e.2
Loop 4 temperature word 3 I:e.3
Loop 1 configuration status word 4 I:e.4
Loop 2 configuration status word 5 I:e.5
Loop 3 configuration status word 6 I:e.6
Loop 4 configuration status word 7 I:e.7
Loop 1 control status and TPO word 8 I:e.8
Loop 2 control status and TPO word 9 I:e.9
Loop 3 control status and TPO word 10 I:e.10
Loop 4 control status and TPO word 11 I:e.11
If using the sample program,
variables in words 12-15, including
current CVs, are multiplexed and
scanned into N10:200-243 word 12 I:e.12
word 13 I:e.13
word 14 I:e.14
word 15 I:e.15
BTM
Module
Output Image
Slot e
See Figure 1.3 on
page 1-4
Input Image
Slot e
See Figure 1.3 on
page 1-4
output
image
16 words
input
image
16 words
SLC 5/0x
I/O Image Table
Slot e portion of
SLC image table
for BTM module