User guide

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Connection to a PLC
External Device Setup Manual
2.5.8 MELSEC-Q (CPU)
Bit Device
Device Name Device Symbol Address Range Read
/Write
Address
Gradual
MICRO/I PLC
Internal Relay M M 0 - 32767 R/W
Input Relay X X 0 - 1FFF R
*1
*1. Set this device using hexadecimal.
Output Relay Y Y 0 - 1FFF R/W
*1
Link Special Relay SB SB 0 - 7FF R/W
*1
Link Relay B B 0 - 1FFF R/W
*1
Latch Relay L L 0 - 32767 R/W
Annunciator F F 0 - 32767 R/W
Step Relay S S 0 - 8191 R/W
Edge Relay V V 0 - 32767 R/W
Timer (contact) TS T 0 - 23087 R
Timer (coil) TC T 0 - 23087 R/W
Counter (contact) CS C 0 - 23087 R
Counter (coil) CC C 0 - 23087 R/W
Retentive Timer (contact) SS ST 0 - 23087 R
Retentive Timer (coil) SC ST 0 - 23087 R/W
Special Relay SM SM 0 - 2047 R