Omron CJ1W-ETN21 operation manual Table of Protocols, Section, Unit setting tag

Table of Protocols				Section 1-3
Timing and	User purpose	Communications	Method	Restrictions
direction		service
Automatic execu-	Reading data in the	Mail Send Func-	Specify a data file as an attached	The maximum data
tion when a preset	CPU Unit's I/O mem-	tion	file and specify the starting read	size is 6,000
condition is met,	ory		address and number of words.	words.
sent to computer
	Reading data from a		Specify any file as an attached file.	The maximum data
(See note.)
	Memory Card installed			size is 1 MB.
	in the CPU Unit
	Receiving a user-		Store the desired message in	The maximum
	defined message as		ASCII in the CPU Unit's I/O mem-	message length is
	an e-mail		ory.	1,024 characters
				(alphanumeric
				characters only).
User-specified tim-	Performing operations	FTP Server Func-	Login to the Ethernet Unit from the	The data size is not
ing, sent from com-	on EM file memory or	tion	FTP client software and send the	restricted. The IP
puter	a Memory Card		FTP command.	address for the
	installed in the CPU			Ethernet Unit must
	Unit			be private and
				fixed.
	Reading and writing	Socket Service	Socket service operations can be	The IP address for
	data in the CPU Unit's	Function	executed by executing the CMND	the Ethernet Unit
	I/O memory from a		instruction or setting control bits in	must be private
	general application		the PLC.	and fixed.
	(not using FINS com-
	munications)
Performed at a set	Automatically correct-	Automatic Clock	Install the SNTP server in the net-	---
time every day or	ing the PLC's internal	Adjust Function	work and schedule the synchroni-
from the ladder	clock		zation time in the Ethernet Unit.
program
Temporarily con-	Performing online	FINS communica-	One function stores the counter-	The IP address for
necting a computer	operations on the CPU	tions	part FINS nodes' connection infor-	the Ethernet Unit
to perform opera-	Unit		mation. Another function	must be private
tions from a FINS			automatically assigns node	and fixed.
application such as			addresses.
the CX-Program-
mer
Performing opera-			A function supports simultaneous	---
tions from two or			online connections of multiple
more FINS appli-			applications in the computer.
cations in the com-
puter

Note Any one of the following conditions can be specified to send e-mail automati- cally:

A periodic timer times out, the Mail Send Switch is turned from OFF to ON, a specified word contains a particular value, a specified bit turns from OFF to ON, the CPU Unit's operating mode changes, a fatal error occurs, or an event is stored in the error log.

1-3	Table of Protocols
Communications		Protocol used	Situation when used	CX-	Reference
	service			Programmer's
				Unit setting tag
				name
Mail Send Function		SMTP	Required	SMTP	SECTION 2 Mail
					Send Function
		POP	When using “POP before SMTP”	POP
		DNS	When specifying the SMTP server and	DNS
			POP server by host names

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