Mitsubishi Electric MELSEC-FX3S Series - FX3 U-4 AD (4-channel Analog Input); 1. Outline; 2. Specifications

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FX 3S /FX 3G /FX 3GC /FX 3U /FX 3UC PLC User's Manual - Analog Control Edition
Table of Contents
B. FX3U-4AD (4-channel Analog Input)
FX
3UC-4AD (4-channel Analog Input)
1. Outline B-3
1.1 Outline of Functions .....................................................................................................................B-3
1.2 Setup Procedure Before Starting Operation ................................................................................B-4
1.3 Connectable PLC and Version Numbers .....................................................................................B-5
1.4 Compatible Programming Tool Version Number .........................................................................B-5
2. Specifications B-6
2.1 Generic Specifications .................................................................................................................B-6
2.2 Power Supply Specifications........................................................................................................B-7
2.3 Performance Specifications .........................................................................................................B-7
2.4 Input Mode (Characteristics) BFM#0 ...........................................................................................B-8
3. Wiring B-9
3.1 Terminal Layout .........................................................................................................................B-10
3.2 Cable and Terminal Tightening Torque......................................................................................B-11
3.2.1 Power cable (FX3UC-4AD) .........................................................................................................B-11
3.2.2 Cable (FX
3U-4AD)......................................................................................................................B-11
3.2.3 Cable (FX3UC-4AD)....................................................................................................................B-12
3.3 Examples of Power Supply Circuit .............................................................................................B-13
3.3.1 FX3U-4AD...................................................................................................................................B-13
3.3.2 FX3UC-4AD ................................................................................................................................B-14
3.3.3 Cautions regarding connection of power cables.........................................................................B-14
3.4 Analog Input Line .......................................................................................................................B-15
3.4.1 FX3U-4AD...................................................................................................................................B-15
3.4.2 FX3UC-4AD ................................................................................................................................B-16
3.5 Grounding ..................................................................................................................................B-16
4. Analog Input B-17
4.1 Analog Input Procedures............................................................................................................B-17
5. Buffer Memory (BFM) B-19
5.1 Assignment of Unit Numbers and Outline of Buffer Memory .....................................................B-19
5.2 Buffer Memory Reading/Writing Method ....................................................................................B-21
5.2.1 Buffer memory direct specification (FX3U/FX3UC PLC only)......................................................B-21
5.2.2 FROM/TO instruction (FX3G/FX3GC/FX3U/FX3UC PLC) ...........................................................B-21
5.3 Buffer Memory List (BFM) ..........................................................................................................B-22
5.4 Buffer Memory Details................................................................................................................B-26
5.4.1 BFM#0: Input mode specification ...............................................................................................B-26
5.4.2 BFM#2 to #5: Averaging time.....................................................................................................B-27
5.4.3 BFM#6 to #9: Digital filter setting................................................................................................B-28
5.4.4 BFM#10 to #13: Channel data....................................................................................................B-29
5.4.5 BFM#19: Data change disable ...................................................................................................B-30
5.4.6 BFM#20: Initialization function (resetting to factory default status) ............................................B-30
5.4.7 BFM#21: Input characteristics writing.........................................................................................B-30
5.4.8 BFM#22: Convenient function setting.........................................................................................B-31
5.4.9 BFM#26: Upper/lower limit error status ......................................................................................B-33
5.4.10 BFM#27: Abrupt change detection status ................................................................................B-34