Omron SYSMAC CJ1W-SCU21-V1 User Manual

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Appendix J
E5@J Temperature Controller Protocol
The E5@J Temperature Controller Protocol performs various settings and controls in remote mode for the Tem-
perature Controller connected to the Serial Communications Unit/Board via RS-232C or RS-422A/485 cable.
Note Negative values cannot be written. All values must be set as unsigned BCD.
Structure of the Protocol
The following table shows the structure of the E5@J Temperature Controller Protocol.
Note 1. The hexadecimal equivalents of sequences numbers are given in parentheses.
2. Ladder Interface Settings
YES: User settings are required for the 3rd or 4th operands of PMCR.
NO: Send word allocation: Set the constant 0000 for the 3rd operand (S).
Receive word allocation: Set the constant 0000 for the 4th operand (D).
Sequence
No.
Communications
sequence name
Function Ladder interface
Send word
allocation
Receive word
allocation
200 (00C8) Select remote mode Switches the Controller to remote mode. Yes No
201 (00C9) Select local mode Switches the Controller to local mode. Yes No
202 (00CA) Select backup mode Switches from set point write mode to backup
mode.
Ye s N o
203 (00CB) Select RAM write mode Switches from set point write mode to RAM
write mode.
Ye s N o
204 (00CC) Save set point Saves the set point. Yes No
205 (00CD) Write parameters 1 Writes the set point, alarm value 1, alarm
value 2, and heater burnout alarm value.
Ye s N o
206 (00CE) Write parameters 2 Writes the proportional band, integral time,
and derivative time.
Ye s N o
207 (00CF) Write input shift value Writes the input shift value. Yes No
208 (00D0) Read parameters 1 Reads the set point, alarm value 1, alarm
value 2, and heater burnout alarm value.
Ye s Ye s
209 (00D1) Read parameters 2 Reads the proportional band, integral time,
and derivative time.
Ye s Ye s
210 (00D2) Read input shift value Reads the input shift value and writes it in
IOM.
Ye s Ye s
211 (00D3) Read output value Reads the output value and stores it in IOM. Yes Yes
212 (00D4) Read process value Reads the process value and stores it in
IOM.
Ye s Ye s
213 (00D5) Read set point limit Reads the set point limits and stores them in
IOM.
Ye s Ye s
214 (00D6) Read heater current Reads the heater current and stores it in
IOM.
Ye s Ye s
215 (00D7) Read initial status Reads the initial status and stores it in IOM. Yes Yes
216 (00D8) General-purpose write Writes the specified parameter by setting a
header code.
Ye s N o
217 (00D9) General-purpose read Reads the specified parameter by setting a
header code.
Ye s Ye s

Omron SYSMAC CJ1W-SCU21-V1 Specifications

General

Model	CJ1W-SCU21-V1
Type	Serial Communications Unit
Number of Ports	1
Parity Check	None, Even, Odd
Manufacturer	Omron
Operating Temperature	0 to 55 °C
Storage Temperature	-25 to 65 °C
Data Bits	7, 8
Stop Bits	1 or 2 bits
Flow Control	RTS/CTS
Isolation	Photocoupler isolation
Applicable PLC	CJ1 Series
Power Supply	5 VDC (supplied from the PLC backplane)
Compatible PLC Series	CJ1 Series
Protocol Support	NT Link, Host Link, No-protocol Mode
Baud Rate	300 to 115200 bps

Summary

Intended Audience

General Precautions

Safety Precautions

Operating Environment Precautions

Application Precautions

Conformance to EC Directives

6-1 Applicable Directives

Lists the relevant EC Directives, specifically EMC Directives and Low Voltage Directive.

6-2 Concepts

Defines the concepts related to EMC Directives, emphasizing OMRON devices' conformity to standards.

Unit Versions of CS/CJ-series Serial Communications Boards/Units

Unit Versions

Introduces the concept of unit versions for managing CS/CJ-series Serial Communications Units/Boards.

1. Unit Version Notation on Products

Describes how unit version codes are provided on product nameplates for CS-series Serial Communications Boards and Units.

Functions Added in the Unit Version 1.3 Upgrade

Functions Added in the Unit Version 1.2 Upgrade

SECTION 1 Introduction

1-1 Using this Manual

Explains how to use the manual for Host Link, protocol macro, and 1:N NT link communications.

1-2 Overview

Provides an overview of the Serial Communications Boards and the Serial Communications Unit.

1-3 Protocol Overview

Details the various serial communications modes supported by Serial Communications Boards and Units.

1-4 Features

Describes the features of the Serial Communications Boards, the Serial Communications Unit, and the protocols.

1-5 System Configurations

Explains the system configuration supported by each serial communications mode.

1-6 Specifications

Provides detailed specifications for Serial Communications Boards and Units, including ports, protocols, and data exchange.

1-7 Comparison to Previous Products

Compares CS/CJ-series Serial Communications Boards/Units with C200HX/HG/HE Communications Boards and Host Link Units.

1-8 Selecting the Serial Communications Mode

Guides the user in selecting the appropriate serial communications mode based on the connected device.

1-9 Basic Operating Procedure

Provides an overview of the basic operating procedures for installing and configuring the units.