Omron SYSMAC NX-CIF105 User Manual

1 Features and System Configuration
1 - 8
NX-series Communications Interface Units User’s Manual (W540)
1-4 Serial Communications Instructions
for the CIF Units
You can use serial communications instructions for CIF Units to easily implement no-protocol data
transfers and execute Modbus-RTU commands.
The following serial communications instructions for CIF Units a
r
e supported. Refer to the instructions
reference manual for the connected CPU Unit or Industrial PC for instructions specifications.
Serial communications instructions for CIF Units cannot be used
for all system configurations, con-
nected communications masters, and connected Communications Coupler Units
. This section gives the
conditions for using serial communications instructions for CIF Units
1-4-1 Serial Communications Instructions for CIF Units
Instruction Name Outline of function
NX_SerialSend Send No-protocol Data Sends data in No-protocol Mode from a serial port on an
NX
-series Communications Interface Unit.
NX_SerialRcv Receive Noprotocol Data Reads data in No-protocol Mode from a serial port on an
NX
-series Communications Interface Unit.
NX_ModbusRtuCmd Send Modbus RTU Gen-
eral Command
Sends general commands from a serial port on an
NX-series Communications Interface Unit to Modbus-RTU
slaves using Modbus-RTU protocol.
NX_ModbusRtuRead Send Modbus RTU Read
Command
Sends read commands from a serial port on an NXseries
Co
mmunications Interface Unit to Modbus-RTU slaves
using Modbus-RTU protocol.
NX_ModbusRtuWrite Send Modbus RTU Write
Command
Sends write commands from a serial port on an NXseries
Co
mmunications Interface Unit to Modbus-RTU slaves
using Modbus-RTU protocol.
NX_SerialSigCtl Serial Control Signal
O
N
/OFF Switching
Turns ON or OFF the ER or RS signal of a serial port on an
NX-series Communications Interface Unit.
NX_SerialBufClear Clear Buffer Clears the send or receive buffer.
NX_SerialStartMon Start Serial Line Monitor-
ing
Starts serial line monitoring of an NX-series Communica-
tions Interface Unit.
NX_SerialStopMon Stop Serial Line Monitor-
ing
Stops serial line monitoring of an NX-series Communica-
tions Interface Unit.
1-4-2 Conditions for Using Serial Communications Instructions for CIF
Units
System
configuration
Communications
master
Communications Coupler
Unit
Usability
CPU Unit connection --- --- Usable

Omron SYSMAC NX-CIF105 Specifications

General

Brand	Omron
Model	SYSMAC NX-CIF105
Category	Recording Equipment
Language	English