Omron CS1W-DRM21, CJ1W-DRM21 Fins Commands and Responses, Fins Communications, Indicators

FINS Commands and Responses				Section 6-2
termeasures and errors recorded in error history that are not shown by the
indicators.
Error		Indicators		Unit status 1	Error
				(word n+10)	history
	MS	NS	7-segment
					code (Hex)
			display
Network power error	No change	Not lit	E0	Bit 07 turns	0341
				ON.
Send timeout			E2	Bit 08 turns	0342
				ON.
Routing table error	Flashing red	No change	HC	Bit 12 turns	021A
				ON.
Node address duplicated	No change	Lit red	F0	Bit 06 turns	0211
				ON.
Bus Off detected			F1	Bit 05 turns	0340
				ON.
CPU Unit service monitoring error	Flashing red	Not lit	HE	––	0002
Other CPU error			H7		0006
Local node not part of network; cannot send	No change	No change	No change	––	0101
No. of retries limit exceeded; cannot send					0103
Remote device busy; cannot send					0109
Header error; cannot send					0112
Reception buffer full; message destroyed					0117
Illegal message received; received message					0118
destroyed
Local node busy; cannot send					0119

Note 1. The 7-segment display alternately displays the error and the master node address where the error occurred.

2.The send response message or reception response message will be de- stroyed if any of the following occur:

•If any communications instructions (SEND(090), RECV(098), or CMND) are executed from the PC at intervals less than the message communications time.

•If messages are received from other nodes at intervals less than the message communications time.

Be sure that the interval between sending messages (i.e., the interval for executing communications instructions from the PC) and the interval for re- ceiving messages at any one node are longer than the message commu- nications time. Refer to 8-2 Message Communications for details on the message communications time.

6-2 FINS Commands and Responses

6-2-1 FINS Communications

The FINS communication protocol was developed by OMRON for use with factory automation control devices. FINS communications enable PC memory read/write and operation control without extensive programming in the user program in the PC. FINS communications use an independent system of addresses that does not rely on the addresses used in the DeviceNet net- work. This enables communications not only with nodes on the DeviceNet network, but also with devices and PCs connected via other FA networks, such as the SYSMAC NET and SYSMAC LINK Networks.

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