E6581288①
− 9 −
4.4. Communication specification
This option occupies one station area of the buffer memory of the PLC.
There are remote I/O (RX, RY both 32 bits) and the remote register (RWw, RWr both 4
word) in the communication data for one station area.
List of remote I/O
Inverter (Slave)
→ PLC (Master) PLC (Master) → Inverter (Slave)
Device No. Signal Device No. Signal
RXn0 Forward running RYn0 Forward rotation command
RXn1 Reverse running RYn1 Reverse rotation command
RXn2 Output terminal 1 (OUT1) RYn2 Input terminal 5 (S1)
RXn3 Output terminal 2 (OUT2) RYn3 Input terminal 6 (S2)
RXn4 Output terminal 3 (FL) RYn4 Input terminal 7 (S3)
RXn5 Output terminal 4 (OUT3) RYn5 Input terminal 8 (S4)
RXn6 Output terminal 5 (OUT4) RYn6 Input terminal 9 (L1)
RXn7 Output terminal 6 (R1) RYn7 Input terminal 10 (L2)
RXn8 Output terminal 7 (OUT5) RYn8 Input terminal 11 (L3)
RXn9 Output terminal 8 (OUT6) RYn9
Intercept output to inverter
(Coast stop)
RXnA Output terminal 9 (R2) RYnA Frequency priority CC-Link
RXnB Reserved RYnB Command priority CC-Link
RXnC Monitoring RYnC Monitor command
RXnD Frequency setting completion (RAM) RYnD Frequency setting command (RAM)
RXnE Torque setting completion (RAM) RYnE Torque setting command (RAM)
RXnF Instruction code execution completion RYnF Instruction code execution request
RX(n+1)0 RY(n+1)0
RX(n+1)1 RY(n+1)1
RX(n+1)2 RY(n+1)2
RX(n+1)3 RY(n+1)3
RX(n+1)4 RY(n+1)4
RX(n+1)5 RY(n+1)5
RX(n+1)6 RY(n+1)6
RX(n+1)7
Reserved
RY(n+1)7
Reserved
RX(n+1)8 Reserved RY(n+1)8 Reserved
RX(n+1)9 Reserved RY(n+1)9 Reserved
RX(n+1)A Error status flag RY(n+1)A
Error reset request flag
(A reset request is during switched ON)
RX(n+1)B Remote station ready RY(n+1)B Reserved
RX(n+1)C RY(n+1)C
RX(n+1)D RY(n+1)D
RX(n+1)E RY(n+1)E
RX(n+1)F
Reserved
RY(n+1)F
Reserved
"n" is depend on the station number.
The reserved input signal should be set OFF ("0").
RWr, RWw (Default value = 0)
RWr Inverter → PLC RWw PLC → Inverter
Address
Contents
Address Contents
RWr n
First monitor value
RWw n Monitor code (first and second)
RWr n+1
Second monitor value (output frequency)
RWw n+1 Set frequency/ torque
RWr n+2
Reply code
RWw n+2 Instruction code
RWr n+3
Read data
RWw n+3 Write data
"n" is depend on the station number.
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