DL205 Analog Manual, 7th Edition Rev. D
6-4
Chapter 6: F2-04RTD 4-Channel RTD Input
1
2
3
4
5
6
7
8
9
10
11
12
13
14
A
B
C
D
Special Placement Requirements (DL230 and Remote I/O Bases)
It is important to examine the configuration if a DL230 CPU is being used. As can be seen
in the section on
Writing the Control Program
, V-memory locations are used to manage
the analog data. If the module is placed so that the input points do not start on a V-memory
boundary, the instructions will not be able to access the data. This also applies when placing
this module in a remote base using a D2-RSS in the CPU slot. Refer to the diagrams below.
To use the V-memory references required for a DL230 CPU, the first input address assigned
to the module must be one of the following X locations. The table also shows the V-memory
addresses that correspond to these X locations.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
A
b
C
D
X
X0
X20
X40
X60
X100
X120
X140
X160
V
V40400 V40401 V40402 V40403 V40404 V40405 V40406 V40407
X
3
7
F2-04RTD
V40401 -- V40402
B
S
L
B
S
M
X
2
0
V40400
V40403
Correct!
16pt
Output
8pt
Output
32pt
Input
Input
8pt
16pt
Input
Y0
--
Y17
Y20
--
Y27
X0
--
X17
X20
--
X57
X60
--
X67
Slot 0
Slot 1
Slot 2
Slot 3
Slot 4
X
2
7
X
3
0
X
5
7
MSB
X
4
0
X
4
7
X
5
0
LSB
V40402
V40401
Data is correctly entered so input points start on a
V-memory boundary address from the table below.
16pt
Output
8pt
Output
8pt
Input
Input
32pt
16pt
Input
Y0
--
Y17
Y20
--
Y27
X0
--
X17
X20
--
X27
X30
--
X67
F2-04RTD
V40402
B
S
L
B
S
M
X
4
0
X
6
0
X
4
7
X
5
0
V40401
B
S
L
B
S
M
X
2
0
X
3
7
X
2
7
X
3
0
Incorrect
Slot 0
Slot 1
Slot 2
Slot 3
Slot 4
MSB
X
7
7
V40403
X
6
7
X
7
0
LSB
X
5
7
Data is split over three locations, so instructions
cannot access data from a DL230.
Summary of Contents for DL205
Page 1: ...DL205 Analog I O Manual Manual Number D2 ANLG M ...
Page 2: ...Notes ...
Page 6: ...Notes ...