Programming; Loading Of A/D Conversion Data - Mitsubishi Electric MELSEC-FX3S Series Manual

FX /FX /FX /FX /FX
3S 3G 3GC 3U 3UC
FX -4AD-PTW-ADP (4-channel Platinum Resistance Thermometer Data Input)
3U
4.

Programming

This chapter describes how to create programs that can read analog data using the PTW-ADP.
4.1

Loading of A/D Conversion Data

1) The input analog data will be converted into digital data and then stored in the special devices of the
FX /FX /FX
3S 3G
2) If data is stored in the special devices, the averaging time can be set, and the input mode can be
specified.
3) Special auxiliary relays (10 points) and special data registers (10 points) are assigned automatically
starting from the adapter nearest to the main unit.
• FX Series PLC
3S
Communi-
cation
FX -4AD
special
3U
-PTW-ADP
adapter
A/D
• FX /FX Series PLC
3G 3GC
Communi-
cation
FX -4AD
3U
special
-PTW-ADP
adapter
*1
2nd
A/D
The analog special adapter nearest to the main unit is counted as the 1st analog special adapter, and the
next adapter as the 2nd analog special adapter. However, in this case, do not include the connector
conversion adapter and the communication special adapter.
*1. The second special adapter is not available in the FX
*2. A connector conversion adapter is required to connect the FX
PLC.
PLC User's Manual - Analog Control Edition
/FX /FX Series PLC.
3GC 3U 3UC
→ For a detailed description of special device assignment, refer to Section 4.2.
FX -CNV
3S
-ADP
FX -4AD
3U
-PTW-ADP
1st
A/D
FX Series PLC
3S
Special devices
Special auxiliary relays:
M8280 to M8289
Special data registers:
D8280 to D8289
FX /FX Series PLC
3G 3GC
Special devices
Special auxiliary relays:
M8280 to M8289
Special data registers:
D8280 to D8289
Special auxiliary relays:
M8290 to M8299
Special data registers:
D8290 to D8299
Series PLC (14-point and 24-point type).
3G
-4AD-PTW-ADP to the FX
3U
4 Programming
4.1 Loading of A/D Conversion Data
Sequence
program
*2
Sequence
Program
Series
3G
J-17
A
B
C
D
E
F
G
H
I
J