Omron 3G3MV-PDRT2, Руководство пользователя

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Chapter 9
9-2
Communications Programs (CS-series PLCs)
Note In this chapter, the bits, words, and data memory used in the example ladder programs
were selected arbitrarily. When creating actual programs, modify the contents so that
they do not overlap with other areas.
9-1 Standard Remote I/O Programming
When the following standard remote I/O programming is executed, the rotational speed reference
data specified in the DM (Data Memory) Area of the PLC is written to the 3G3MV Inverter and for-
ward or reverse operation is performed at the specified frequency when the Frequency Reference
Input Bit is turned ON and the Forward Input Bit or Reverse Input Bit is turned ON.
■ Allocations
● Remote I/O: Outputs from PLC to 3G3MV Inverter Words n and n + 1
● Remote I/O: Inputs from 3G3MV Inverter to PLC Words m and m + 1
Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
n Right-
most 0 --- Net Ref-
erence Net Con-
trol --- --- Fault
Reset Reverse/
Stop For-
ward/
stop
Left-
most 1 --- --- --- --- --- --- --- ---
n+1 Right-
most 2 Rotational speed reference (rightmost data)
Left-
most 3 Rotational speed reference (leftmost data)
Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
m Right-
most 0 At Fre-
quency Refer-
ence
From Net Control
From Net Inverter
Ready During
Reverse
Run During
Forward
Run Alarm Fault
Left-
most 1 --- --- --- --- --- --- --- ---
m+1 Right-
most 2 Rotational speed monitor (rightmost data)
Left-
most 3 Rotational speed monitor (leftmost data)
000000
000001
000002
000003
001000
003000
D00000
Input
Flag
Bit
Bit
Bit
Bit
Bit
Bit
Frequency Reference Input Bit
Forward Input Bit
Reverse Input Bit
Fault Reset Input Bit
Local/Network selection Bit
Fault Flag
Rotational speed reference data