Inter-Module Synchronization Function - Mitsubishi Electric MELSEC iQ-R User Manual

1.5

Inter-Module Synchronization Function

This function synchronizes the control timings of multiple flexible high-speed I/O control modules.
Overview
The following table lists the targets that can be synchronized by the inter-module synchronization function.
Target
Synchronous output of external output signals
Latch of the count values and the states of external
input signals
External output of the inter-module synchronization
signal
■Synchronous output of external output signals
The High/Low states of the external output signals are changed at a time in synchronization with the inter-module
synchronization signal. Synchronous output synchronizes the control timings of external devices connected to multiple flexible
high-speed I/O control modules.
Inter-module
synchronization cycle
Internal operation value
of the hardware logic
(external output block)
External output signal
A ON: The ON condition for the module A is satisfied.
A OFF: The OFF condition for the module A is satisfied.
B ON: The ON condition for the module B is satisfied.
B OFF: The OFF condition for the module B is satisfied.
(1) The ON timings of the external output signals are synchronized at the inter-module synchronization cycle.
1 FUNCTIONS
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1.5 Inter-Module Synchronization Function
Timing
Inter-module synchronization signal
Always
Inter-module
synchronization cycle
A ON
Module A
Module B
B ON
Module A
Module B
Overview
The High/Low states of the external output
terminals are changed at a time.
• The latch count values of multi function counter
blocks are refreshed to the buffer memory areas.
• The High/Low states of external input signals are
latched and refreshed to the X signals.
The inter-module synchronization signal is output
from the external output terminals.
A OFF
B OFF
(1)