4 Remote I/O
12-48 SmartAXIS Touch User's Manual
● Remote I/O Communication Memory Refresh Image
Data communication between the remote I/O master and the remote I/O slaves is conducted as shown in the
diagram below.
●
Connection Status with Remote I/O Slaves
The connections status of each remote I/O slave can be confirmed by referring to the special internal relays and
special data registers of the SmartAXIS configured as the remote I/O master.
Remote I/O
Slave 2
I0 to I35
Q0 to Q21
Analog inputs
D8040 to D8047
Remote I/O
Slave 3
I0 to I35
Q0 to Q21
Analog inputs
D8040 to D8047
I0 to I35
Q0 to Q21
Analog inputs
D8040 to D8047
Connection 1
I40 to I75
Q40 to Q61
Analog inputs
D8149 to D8156
Connection 2
I80 to I115
Q80 to Q101
Analog inputs
D8158 to D8165
Connection 3
I120 to I155
Q120 to Q141
Analog inputs
D8167 to D8174
I0 to I35
Q0 to Q21
Analog inputs
D8040 to D8047
Remote I/O
master
Remote I/O
slave 1
Item Connection port Device Description
Connection status
Connection 1 M8110
Indicates the connection status with the
corresponding slave.
OFF: Not connected, ON: Connected
Connection 2 M8111
Connection 3 M8112
IP address of the
connected slave
Connection 1 D8110 to D8113
Stores the IP address of the slave.Connection 2 D8114 to D8117
Connection 3 D8118 to D8121
Port number of the
connected slave
Connection 1 D8130
Stores the connected port number of the
slave.
Connection 2 D8131
Connection 3 D8132
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