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FINS Commands and Responses Section 6-2
termeasures and errors recorded in error history that are not shown by the
indicators.
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.
Error Indicators Unit status 1
(word n+10)
Error
history
code (Hex)
MS NS 7-segment
display
Network power error No change Not lit E0 Bit 07 turns
ON.
0341
Send timeout E2 Bit 08 turns
ON.
0342
Routing table error Flashing red No change HC Bit 12 turns
ON.
021A
Node address duplicated No change Lit red F0 Bit 06 turns
ON.
0211
Bus Off detected F1 Bit 05 turns
ON.
0340
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
destroyed
0118
Local node busy; cannot send 0119