Mitsubishi FX3U User Manual

7 Data Link Processing Time
7.2 Transmission Delay Time
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FX3U-16CCL-M User's Manual
7.2 Transmission Delay Time
This section explains the transmission delay time (the time until data is transmitted).
When consistency control is being used, it becomes delay time from a consistency control completed.
→ For details on the consistency control, refer to Subsection 6.3.6.
7.2.1 Master station <-> Remote I/O station
1. Master station (RX) <- Remote I/O station (input)
This indicates the time from the moment a signal is input to a remote I/O station until the corresponding
master station PLC device turns ON (OFF).
Calculation expression
SM + LS × 2 + Remote I/O station processing time [ms]
- SM: Master station sequence program scan time
- LS: Link scan time
2. Master station (RY) -> Remote I/O station (output)
This indicates the time from the moment a master station PLC device turns ON (OFF) until a remote I/O
station output turns ON (OFF).
Calculation expression
SM + LS × 2 + Remote I/O station processing time [ms]
- SM: Master station sequence program scan time
- LS: Link scan time
7.2.2 Master station <-> Remote device station (Ver. 1 compatible slave station)
1. Master station (RX) <- Remote device station (RX)
This indicates the time from the moment a signal is input to a remote device station until the corresponding
master station PLC device turns ON (OFF).
Calculation expression
SM + LS × 2 + Remote device station processing time [ms]
- SM: Master station sequence program scan time
- LS: Link scan time
2. Master station (RY) -> Remote device station (RY)
This indicates the time from the moment a master station PLC device turns ON (OFF) until a remote device
station output turns ON (OFF).
Calculation expression
SM + LS × 2 + Remote device station processing time [ms]
- SM: Master station sequence program scan time
- LS: Link scan time
3. Master station (RWw) -> Remote device station (RWw)
This indicates the time from when data is set to a master station PLC device until the corresponding data on
the remote device station is changed.
Calculation expression
SM + LS × 2 + Remote device station processing time [ms]
- SM: Master station sequence program scan time
- LS: Link scan time

Mitsubishi FX3U Specifications

General

Series	FX3U
Program Capacity	64k steps
Type	PLC
Power Supply	AC: 100-240V, DC: 24V
I/O Points	Up to 384 points
Communication	RS-232C, USB, Ethernet
Expansion	Supports multiple expansion modules including I/O, analog, and communication modules
Programming Language	Ladder Logic, SFC, Function Block Diagram
High-speed Processing	0.065 μs per basic instruction
Analog I/O	Available with expansion modules
Positioning Control	Up to 3 axes of positioning control
Weight	0.3 kg (Main unit)