Protocol Overview

Section 1-1

1-1-4 System Configuration

The following serial communications modes are supported by the Serial Com- munications Board: Host Link (SYSMAC WAY), protocol macro, no-protocol, 1:1 Data Links, 1:N-mode NT Link, and 1:1-mode NT Link modes. The devices shown in the following diagram can be connected.

Note The 1:1-mode NT Link and 1:N-mode NT Link communications modes use dif- ferent protocols that are not compatible with each other.

 

 

 

Programming

 

 

 

 

Device

 

General-purpose

Programmable

 

(excluding

 

 

Programming

 

external device

Terminal (PT)

C-series PC

Host computer

Console)

Protocol macros

No-protocol

RS-232C

NT Link

 

1:1

 

 

 

 

 

 

Data Link

 

Host Link

 

Host Link

 

 

 

 

 

 

 

CQM1H-series CPU Unit

Serial Communications Board

RS-422A/485

General-purpose

Programmable C-series PC

 

 

external device

Terminal (PT)

 

Programming Host computer

Protocol macros

 

NT Link

 

1:1

Device

 

 

 

Data Link

(excluding

Host Link

 

 

 

 

Programming

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Console)

 

No-protocol

Host Link

Note An NT-AL001-E Converting Link Adapter can be used to convert between RS-232C and RS-422A/485. This Link Adapter requires a 5-V power supply. Power is provided by the RS-232C port on the Serial Communications Board when the Link Adapter is connected to it, but must be provided separately when connecting the Link Adapter to other devices.

3

Page 15
Image 15
Omron CQM1H-SCB41 operation manual System Configuration