Omron CS1W-ETN21 operation manual PLC Communications Data Areas, Area Range

Communicating between OMRON PLCs		Section 6-6
	Item	Specifications
	Data contents	The following data is sent and received with the execution of
		each instruction.
		SEND(090):
		Sends request for remote node to receive data, and receives
		response data.
		RECV(098):
		Sends request for remote node to send data, and receives
		response data.
		CMND(490):
		Sends any FINS command and receives response data.
	Communications	Ports 0 to 7 (Eight transmissions can occur simultaneously.)
	port number
	Response moni-	0000:
	tor time	2 s (default)
		0001 to FFFF:
		0.1 to 6,553.5 s in 0.1-s increments (specified by user)
	Number of retries	0 to 15 retries

Note 1. The maximum data length is limited to 512 bytes for data exchange be- tween the PLC and SYSMAC LINK Systems or the PLC and SYSMAC BUS/2 Remote I/O Systems.

2.When broadcasting, do not require a response. Use the FINS/UDP method for broadcasting.

6-6-2 PLC Communications Data Areas

The following table shows the I/O data areas involved when SEND(090) and

RECV(098) are used.

Area	Range
CIO Area	CIO 0000 to CIO 6143
Work Area	W000 to W511
Holding Area	H000 to H511
Auxiliary Area	A000 to A959 (See note 1.)
Timer Area	TIM0000 to 4095
Counter Area	CNT0000 to 4095
DM Area	D00000 to D32767
EM Area	E00000 to E32767 (See note 2.)

Note 1. Data cannot be written to words A000 to A447 in the Auxiliary Area.

2.A maximum of 13 banks in the EM Area can be used. For details regarding the EM Area, refer to the operation manual for the PLC that is used.

136