Outline; Outline Of Functions - Mitsubishi Electric FX3G User Manual

FX /FX /FX /FX /FX
3S 3G 3GC 3U 3UC
FX -4AD/FX -4AD (4-channel Analog Input)
3U 3UC
1.

Outline

This chapter outlines the FX
For common descriptions of the FX
1.1

Outline of Functions

The FX -4AD is an analog special function block which is connectable with the FX
3U
Series PLC used to capture 4-ch voltage/current data. The FX
FX Series PLC.
3U
*1
1) Up to 8 units can be connected to the FX
(including the other special function blocks).
2) Either "voltage input" or "current input" can be specified for each channel.
3) The A/D conversion values will be stored in the 4AD buffer memory (BFM).
4) Set the digital filter to read out stable A/D conversion values.
5) For each channel, up to 1,700 A/D conversion values can be stored as history data.
FX /FX Series PLC
3G 3U
FX /FX Series PLC
3GC 3UC
Program

FROM (FNC 78)

TO (FNC 79)

BFM direct
specification (U\G)
Refer to the system configuration shown in the User's Manual - Hardware Edition to check the number of
connectable units and to configure the entire system.
*1. Up to 7 units can be connected to the FX
*2. This function is only available for FX
PLC User's Manual - Analog Control Edition
-4AD/FX -4AD.
3U 3UC
-4AD and FX
3U
System
*1
Up to 8 units connect to the FX
(including other types of special function blocks)

Analog data
Flowmeter, pressure sensor, etc.
Transmission direction
*2
3U
-4AD, these model names are referred to as the 4AD.
3UC
-4AD cannot be connected to the FX
3UC
/FX /FX /FX Series PLC.
3G 3GC 3U 3UC
/FX /FX /FX Series PLC
3G 3GC 3U 3UC
Buffer memory
BFM#0
BFM#6999
-32MT-LT(-2) PLC.
3UC
/FX PLCs.
3UC
1 Outline
1.1 Outline of Functions
/FX /FX /FX
3G 3GC 3U
Point and section to be
referred to

Number of connectable units
To check the connectable PLC

model number, refer to
Section 1.3.

For a detailed description of
wiring, refer to Chapter 3.
For a detailed description of

analog data reading programs,
refer to Chapter 4, 6, and 7.
For a detailed description of

the buffer memory, refer to
Section 5.3, and Section 5.4.
To use FROM/TO instruction

or to directly specify the BFM,
refer to Section 5.2.
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A
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C
3UC
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3G
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