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Chapter 9
9-13
Communications Programs (CS-series PLCs)
9-3
Special Remote I/O Programs
9-3-1 Simple Operation Programs
This section describes examples of simple operation programming using special remote I/O. To use
special remote I/O, it is necessary to switch the remote I/O operation. Refer to
5-2 Switching the
Remote I/O Function
and change to the special remote I/O operation.
Once the Program Start Input Bit is turned ON, Inverter operations will continue until the Program
End Input is turned ON. The frequency (speed) reference specified in the DM Area (D01000) of the
PLC is repeatedly set in the Inverter. The output frequency value will be repeatedly read and stored
in the DM Area (D02000). The Inverter status will also be read repeatedly and stored in words
(0020**) allocated in the PLC.
If any communications error occurs, the program will stop and a stop command will be sent to the
Inverter. This state will continue until the Communications Fault Reset Input Bit is turned ON.
Note
Write the program so that the Inverter operation commands (001000 and 001001) will be
turned OFF when the Fault Bit (002014) of the Inverter status turns ON, and also take appro-
priate countermeasures according to maintenance information in the
SYSDRIVE 3G3MV
Multi-function General-purpose Inverter User's Manual
.
■
Allocations
●
Inverter Control Input Word Allocation
●
Inverter Status Word Allocation
Word
Function
001000
Forward/Stop (1: forward) Bit
001001
Reverse/Stop (1: reverse) Bit
001002
Multi-function Input 3 (set with n052) Bit
001003
Multi-function Input 4 (set with n053) Bit
001004
Multi-function Input 5 (set with n054) Bit
001005
Multi-function Input 6 (set with n055) Bit
001006
Multi-function Input 7 (set with n056) Bit
001007
Not used.
001008
External Fault Input (1: EFO) Bit
001009
Fault Reset (1: reset) Bit
Word
Function
002000
During Run (1: during run) Bit
002001
Zero Speed (1: zero speed) Bit
002002
Frequency Agree (1: frequency agree) Bit
002003
Warning (minor fault) (1: alarm) Bit
002004
Frequency Detect 1 (1: output frequency
≤
n095) Bit
Summary of Contents for 3G3MV-PDRT2
Page 4: ......
Page 12: ......
Page 36: ...Chapter 1 1 22 Functions and System Configuration...
Page 52: ...Chapter 2 2 16 Example System Startup...
Page 94: ...Chapter 4 4 14 SYSDRIVE Inverter Settings...
Page 130: ...Chapter 5 5 36 Remote I O Functions...
Page 234: ...Chapter 8 8 14 Communications Errors...
Page 362: ...R 2 Revision History...